Player profile

Grooten, Tommy

Standard: 2311 Rapid: 2248 Blitz: 2372 (last updated 2026-11-02)

FIDE ID: 1068806 (view FIDE profile)

Federation: NED Sex: M Birth Year: 2010 Age: 16

Title: — Women's title: — Other title: — FOA title: —

Games: 278 Wins: 114 (41%) Draws: 73 (26%) Losses: 89 (32%) Other: 2

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Dossier

262 of 278 games analyzed.

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Openings

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As White 130 games 56W 34D 39L

English Opening 19 games 8W 7D 4L

Agincourt Defense 9 games 7W 1D 1L

Catalan Defense Accepted 4 games 3W 1D 0L

(unspecified) 3 games 2W 0D 1L

Neo-Catalan Declined 1 game 1W 0D 0L

Catalan Defense, Semi-Slav Defense 1 game 1W 0D 0L

Anglo-Indian Defense 6 games 0W 3D 3L

Queen's Indian Formation 1 game 0W 0D 1L

Zvjaginsev-Krasenkow Attack 1 game 0W 0D 1L

King's Indian Formation 1 game 0W 1D 0L

Flohr-Mikenas-Carls Variation, Nei Gambit 1 game 0W 1D 0L

King's Knight Variation 1 game 0W 1D 0L

King's Indian Formation, Double Fianchetto 1 game 0W 0D 1L

Neo-Catalan 2 games 1W 1D 0L

(unspecified) 2 games 1W 1D 0L

Symmetrical Variation 2 games 0W 2D 0L

(unspecified) 1 game 0W 1D 0L

Hedgehog Defense 1 game 0W 1D 0L

King's Indian Defense 18 games 8W 3D 7L

Petrosian Variation 10 games 4W 3D 3L

Stein Defense 7 games 3W 2D 2L

Normal Defense 2 games 0W 1D 1L

(unspecified) 1 game 1W 0D 0L

Orthodox Variation 4 games 3W 0D 1L

Aronin-Taimanov Defense 2 games 2W 0D 0L

Glek Defense 1 game 1W 0D 0L

Positional Defense 1 game 0W 0D 1L

Normal Variation 3 games 1W 0D 2L

(unspecified) 2 games 1W 0D 1L

Standard Development 1 game 0W 0D 1L

Kazakh Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Queen's Gambit Declined 16 games 5W 3D 8L

Exchange Variation 7 games 5W 1D 1L

Positional Variation 7 games 5W 1D 1L

(unspecified) 4 games 0W 1D 3L

Janowski Variation 2 games 0W 0D 2L

(unspecified) 2 games 0W 0D 2L

Semi-Slav 1 game 0W 0D 1L

Abrahams Variation 1 game 0W 0D 1L

Semi-Tarrasch Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Three Knights Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Nimzo-Indian Defense 11 games 4W 1D 6L

Kmoch Variation 10 games 3W 1D 6L

(unspecified) 10 games 3W 1D 6L

Sämisch Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

King's Indian Attack 8 games 3W 3D 2L

Keres Variation 3 games 0W 2D 1L

(unspecified) 3 games 0W 2D 1L

(unspecified) 2 games 1W 0D 1L

Sicilian Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Double Fianchetto 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Yugoslav Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Zukertort Opening 6 games 3W 1D 2L

Kingside Fianchetto 2 games 1W 0D 1L

(unspecified) 2 games 1W 0D 1L

(unspecified) 2 games 0W 1D 1L

Reversed Grünfeld 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Queenside Fianchetto Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Slav Defense 5 games 1W 3D 0L

Czech Variation 3 games 1W 2D 0L

Classical System, Main Line 3 games 1W 2D 0L

Soultanbeieff Variation 1 game 0W 0D 0L

(unspecified) 1 game 0W 0D 0L

Modern Line 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Benoni Defense 4 games 4W 0D 0L

Taimanov Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Fianchetto Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Knight's Tour Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

King's Pawn Line 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Catalan Opening 4 games 1W 2D 1L

Open Defense 2 games 0W 2D 0L

Classical Line 2 games 0W 2D 0L

Closed 2 games 1W 0D 1L

(unspecified) 1 game 1W 0D 0L

Botvinnik Variation 1 game 0W 0D 1L

King's Indian Attack, with e6 3 games 2W 1D 0L

(unspecified) 3 games 2W 1D 0L

Dutch Defense 3 games 3W 0D 0L

Leningrad Variation 2 games 2W 0D 0L

Warsaw Variation 2 games 2W 0D 0L

Hopton Attack 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Semi-Slav Defense 3 games 2W 0D 1L

(unspecified) 2 games 1W 0D 1L

Stoltz Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Bird Opening 3 games 1W 1D 1L

From's Gambit 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Dutch Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

(unspecified) 1 game 0W 0D 1L

Queen's Indian Defense 2 games 1W 0D 1L

Euwe Variation 2 games 1W 0D 1L

(unspecified) 2 games 1W 0D 1L

Indian Defense 2 games 0W 2D 0L

London System 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Anti-Nimzo-Indian 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Réti Opening 2 games 2W 0D 0L

Advance Variation 1 game 1W 0D 0L

Michel Gambit 1 game 1W 0D 0L

Anglo-Slav Variation 1 game 1W 0D 0L

with g3 1 game 1W 0D 0L

Grünfeld Defense 2 games 0W 1D 1L

Exchange Variation 2 games 0W 1D 1L

Modern Exchange Variation 1 game 0W 1D 0L

Modern Exchange Variation, Kramnik's Line 1 game 0W 0D 1L

Sicilian Defense 2 games 0W 1D 1L

Najdorf Variation 2 games 0W 1D 1L

Lipnitsky Attack 1 game 0W 0D 1L

Zagreb Variation 1 game 0W 1D 0L

Horwitz Defense 2 games 1W 1D 0L

(unspecified) 2 games 1W 1D 0L

English Orangutan 2 games 0W 1D 1L

(unspecified) 2 games 0W 1D 1L

Ruy Lopez 2 games 1W 0D 1L

Closed 2 games 1W 0D 1L

Keres Defense 2 games 1W 0D 1L

Polish Opening 1 game 1W 0D 0L

King's Indian Variation 1 game 1W 0D 0L

Sokolsky Attack 1 game 1W 0D 0L

Blumenfeld Countergambit Accepted 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

King's Indian Attack, with Bf5 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Queen's Pawn Game 1 game 1W 0D 0L

London System 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Kangaroo Defense 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

English Defense 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Mikenas Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Benko Gambit Accepted 1 game 1W 0D 0L

Pawn Return Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

French Defense 1 game 0W 1D 0L

Tarrasch Variation 1 game 0W 1D 0L

Open System, Euwe-Keres Line 1 game 0W 1D 0L

Caro-Kann Defense 1 game 1W 0D 0L

Panov Attack 1 game 1W 0D 0L

Fianchetto Defense 1 game 1W 0D 0L

Modern Defense 1 game 1W 0D 0L

Averbakh System 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

As Black 128 games 51W 33D 43L

Sicilian Defense 68 games 30W 19D 19L

Najdorf Variation 14 games 6W 4D 4L

English Attack 8 games 3W 4D 1L

(unspecified) 3 games 2W 0D 1L

Lipnitsky Attack 2 games 1W 0D 1L

Opocensky Variation 1 game 0W 0D 1L

Kan Variation 13 games 6W 4D 3L

Maróczy Bind, Réti Variation 6 games 2W 2D 2L

Polugaevsky Variation 4 games 2W 1D 1L

Knight Variation 2 games 1W 1D 0L

Wing Attack 1 game 1W 0D 0L

Scheveningen Variation 13 games 3W 4D 6L

Keres Attack 6 games 1W 2D 3L

English Attack, with f3 3 games 2W 0D 1L

Classical Variation 2 games 0W 1D 1L

Matanovic Attack 1 game 0W 0D 1L

Delayed Keres Attack 1 game 0W 1D 0L

Delayed Alapin Variation 6 games 5W 1D 0L

with e6 5 games 4W 1D 0L

with d6 1 game 1W 0D 0L

French Variation 5 games 1W 1D 3L

(unspecified) 4 games 0W 1D 3L

Open 1 game 1W 0D 0L

Closed 4 games 3W 0D 1L

(unspecified) 3 games 3W 0D 0L

Botvinnik Defense, with Nge2 1 game 0W 0D 1L

Nyezhmetdinov-Rossolimo Attack 3 games 2W 1D 0L

(unspecified) 3 games 2W 1D 0L

Moscow Variation 3 games 1W 1D 1L

(unspecified) 3 games 1W 1D 1L

Alapin Variation 2 games 1W 1D 0L

(unspecified) 1 game 1W 0D 0L

Smith-Morra Declined 1 game 0W 1D 0L

Modern Variations 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Dragon Variation 1 game 1W 0D 0L

Yugoslav Attack, Czerniak Variation 1 game 1W 0D 0L

Taimanov Variation 1 game 0W 1D 0L

Bastrikov Variation, English Attack 1 game 0W 1D 0L

Mengarini Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Wing Gambit 1 game 0W 1D 0L

Marshall Variation 1 game 0W 1D 0L

Benoni Defense 11 games 6W 1D 4L

Classical Variation 3 games 1W 0D 2L

New York Variation 2 games 0W 0D 2L

Czerniak Defense 1 game 1W 0D 0L

Knight's Tour Variation 3 games 1W 0D 2L

(unspecified) 3 games 1W 0D 2L

Semi-Benoni 2 games 2W 0D 0L

(unspecified) 2 games 2W 0D 0L

(unspecified) 1 game 1W 0D 0L

King's Pawn Line 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Taimanov Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

English Opening 9 games 3W 2D 3L

Anglo-Indian Defense 3 games 0W 0D 2L

King's Knight Variation 2 games 0W 0D 1L

King's Indian Formation 1 game 0W 0D 1L

Symmetrical Variation 3 games 1W 1D 1L

Four Knights Variation 1 game 0W 0D 1L

Three Knights Variation 1 game 0W 1D 0L

Three Knights, Fianchetto Variation 1 game 1W 0D 0L

(unspecified) 2 games 2W 0D 0L

Agincourt Defense 1 game 0W 1D 0L

Neo-Catalan Declined 1 game 0W 1D 0L

Dutch Defense 5 games 2W 0D 3L

Leningrad Variation 1 game 1W 0D 0L

Warsaw Variation 1 game 1W 0D 0L

(unspecified) 1 game 0W 0D 1L

Queen's Knight Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Fianchetto Attack 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Classical Variation 1 game 0W 0D 1L

Ilyin-Zhenevsky Variation 1 game 0W 0D 1L

Indian Defense 5 games 1W 2D 2L

Accelerated London System 3 games 0W 2D 1L

(unspecified) 3 games 0W 2D 1L

Paleface Attack 1 game 1W 0D 0L

Blackmar-Diemer Gambit Deferred 1 game 1W 0D 0L

Knights Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Zukertort Opening 3 games 2W 0D 1L

(unspecified) 2 games 1W 0D 1L

Sicilian Invitation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Slav Defense 3 games 1W 2D 0L

Exchange Variation 1 game 0W 1D 0L

Symmetrical Line 1 game 0W 1D 0L

Modern Line 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

(unspecified) 1 game 0W 1D 0L

Benko Gambit Accepted 3 games 1W 0D 2L

Fully Accepted Variation 2 games 1W 0D 1L

(unspecified) 2 games 1W 0D 1L

Modern Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Queen's Gambit Declined 2 games 2W 0D 0L

(unspecified) 1 game 1W 0D 0L

Semi-Tarrasch Defense 1 game 1W 0D 0L

Main Line 1 game 1W 0D 0L

Polish Opening 2 games 1W 1D 0L

Bugayev Attack 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Czech Defense 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Nimzo-Indian Defense 1 game 0W 1D 0L

Kmoch Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Catalan Opening 1 game 0W 0D 1L

Closed 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Queen's Pawn Game 1 game 0W 1D 0L

Torre Attack 1 game 0W 1D 0L

Grünfeld Variation, Main Line 1 game 0W 1D 0L

Tarrasch Defense 1 game 0W 1D 0L

Symmetrical Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Grünfeld Defense 1 game 1W 0D 0L

Exchange Variation 1 game 1W 0D 0L

Spassky Variation 1 game 1W 0D 0L

King's Indian Attack 1 game 0W 1D 0L

Symmetrical Defense 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

East Indian Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

King's Indian Defense 1 game 0W 0D 1L

Normal Variation 1 game 0W 0D 1L

Rare Defenses 1 game 0W 0D 1L

Nimzo-Larsen Attack 1 game 0W 0D 1L

Modern Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Queen's Indian Defense 1 game 0W 0D 1L

Fianchetto Variation 1 game 0W 0D 1L

Kramnik Variation 1 game 0W 0D 1L

Scandinavian Defense 1 game 0W 0D 1L

Bronstein Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Vienna Game 1 game 0W 0D 1L

Falkbeer Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Petrov's Defense 1 game 0W 1D 0L

Modern Attack 1 game 0W 1D 0L

Center Variation 1 game 0W 1D 0L

Four Knights Game 1 game 0W 0D 1L

Spanish Variation 1 game 0W 0D 1L

Rubinstein Variation 1 game 0W 0D 1L

Bogo-Indian Defense 1 game 0W 1D 0L

Retreat Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

St. George Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Trompowsky Attack 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Blunders Top 4 of 1185

This player's costliest moves in analyzed games. Can you find the winning move?

2024.02.10 · 32... Qb5 (−73.1% win chance) 0-1

Tommy Grooten

William Roolvink

Engine View game

2026.09.12 · 29. Nxb7 (−60.6% win chance) 1-0

Bram Van Der Velden

Grooten, Tommy

Engine View game

2026.05.08 · 11. Qb4 (−52.5% win chance) 1-0

Van Dijken, Rex

Grooten, Tommy

Engine View game

2026.09.12 · 56. R7b3 (−51.6% win chance) 1-0

Skrobic, Dragan

Grooten, Tommy

Engine View game

View blunders & mistakes

Games Showing all 278 games

Date	Event	Round	Opponent	Result	Accuracy %	First moves
2026.10.31	Round 3: Grooten, Tommy - Emil Schuricht	3.9	2026.10.31 Schuricht, Emil Frederick (16270185) (2296)	0	76.10%	1. d4 d5 2. c4 e6 3. Nc3 Nf6
2026.10.25	Amsterdam Chess Open 2026 - Group A	6.2	2026.10.25 Van Wely, Loek (1000268) (2627)	0	89.80%	1. Nf3 Nf6 2. c4 b6 3. g3 c5
2026.10.25	Amsterdam Chess Open 2026 - Group A	5.11	2026.10.25 Markuszewski, Maksymilian (651018306) (2098)	1	89.50%	1. d4 d5 2. c4 e6 3. Nf3 c6
2026.10.24	Amsterdam Chess Open 2026 - Group A	4.14	2026.10.24 Zevenhuizen, Daniel (1043900) (2143)	1	97.30%	1. Nf3 g6 2. d4 Nf6 3. c4 Bg7
2026.10.24	Amsterdam Chess Open 2026 - Group A	3.8	2026.10.24 Polak, Alexander (1039695) (2135)	½	80.30%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2026.10.16	Round 8: Kazarjan, Gachatur - Grooten, Tommy	8.3	2026.10.16 Kazarjan, Gachatur (1068750) (2330)	1	97.60%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2026.10.15	Round 7: Grooten, Tommy - Ozcan, Kaan	7.7	2026.10.15 Ozcan, Kaan (34566422) (2248)	1	89.70%	1. d4 d5 2. c4 e6 3. Nc3 Nf6
2026.10.14	Round 6: Ten Kate, Gustav - Grooten, Tommy	6.10	2026.10.14 Ten Kate, Gustav (1095781) (2020)	1	89.50%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.10.13	Round 5: Grooten, Tommy - Seul, Georg	5.6	2026.10.13 Seul, Georg (4601653) (2342)	0	81.20%	1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4
2026.10.13	Round 4: Grooten, Tommy - Anirudh R	4.9	2026.10.13 Anirudh R (25775677) (2115)	1	92.50%	1. Nf3 d5 2. g3 Nf6 3. Bg2 e6
2026.10.12	Round 3: Ritzerveld, Noah - Grooten, Tommy	3.2	2026.10.12 Ritzerveld, Noah (1085760) (2343)	0	89.00%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.10.11	Round 2: Taams, Lisanne - Grooten, Tommy	2.10	2026.10.11 Taams, Lisanne (1055852) (1986)	1	94.70%	1. e4 c5 2. Nc3 d6 3. g3 Nc6
2026.10.10	Round 1: Grooten, Tommy - Hoffman, Ron	9.1	2026.10.10 Hoffman, Ron (1007599) (2039)	1	96.20%	1. Nf3 f5 2. d4 Nf6 3. g3 g6
2026.10.03	Round 2: Grooten, Tommy - Raats, Joppe	2.8	2026.10.03 Raats, Joppe (238902) (2226)	1	88.40%	1. Nf3 Nf6 2. c4 e6 3. g3 b6
2026.09.19	Round 1: Labruyere, Roger - Grooten, Tommy	1.10	2026.09.19 Labruyere, Roger (1059505) (2220)	0	82.30%	1. Nf3 Nf6 2. c4 c5 3. g3 Nc6
2026.09.13	Jong Apeldoorn - De Rest van Nederland	4.2	2026.09.13 Madularea, David (1070215) (1998)	1	77.00%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2026.09.13	Jong Apeldoorn - De Rest van Nederland	3.2	2026.09.13 Zhang, Xiheng (40102386) (2075)	1	88.30%	1. Nf3 Nf6 2. e3 g6 3. b4 Bg7
2026.09.13	Jong Apeldoorn - De Rest van Nederland	2.2	2026.09.13 Smeets, Kobe (1063910) (2178)	1	80.60%	1. e4 c5 2. Nf3 Nc6 3. Bb5 e6
2026.09.13	Jong Apeldoorn - De Rest van Nederland	1.1	2026.09.13 Kazarjan, Gachatur (1068750) (2147)	1	98.50%	1. Nf3 d5 2. g3 Nf6 3. Bg2 e6
2026.09.12	Round 11: Grutter, Tim - Grooten, Tommy	11.5	2026.09.12 Grutter, Tim (1057472) (2333)	0	85.50%	1. e4 c5 2. Nf3 d6 3. Nc3 Nf6
2026.09.12	Round 10: Grooten, Tommy - Skrobic, Dragan	10.3	2026.09.12 Skrobic, Dragan (1032178) (2379)	1	80.30%	1. Nf3 g6 2. c4 Bg7 3. d4 c5
2026.09.12	Round 9: Sosef, Noah - Grooten, Tommy	9.4	2026.09.12 Sosef, Noah (40107060) (1921)	1	78.30%	1. e4 c5 2. Nf3 d6 3. c3 Nf6
2026.09.12	Round 8: Grooten, Tommy - Hugo Ten Hertog	8.4	2026.09.12 Hugo Ten Hertog	½	83.10%	1. Nf3 Nf6 2. c4 g6 3. Nc3 d6
2026.09.12	Round 7: Madularea, David - Grooten, Tommy	7.3	2026.09.12 Madularea, David (1070215) (2152)	1	88.30%	1. a3 e5 2. b4 g6 3. Bb2 Bg7
2026.09.12	Round 6: Grooten, Tommy - Grochal, Joey	6.5	2026.09.12 Grochal, Joey (1019945) (2271)	1	84.90%	1. Nf3 d5 2. g3 Nd7 3. d4 Nb6
2026.09.12	Round 5: Mark Timmermans - Grooten, Tommy	5.2	2026.09.12 Mark Timmermans	½	87.10%	1. b4 e5 2. Bb2 d6 3. e3 g6
2026.09.12	Round 4: Grooten, Tommy - Bram Van Der Velden	4.6	2026.09.12 Bram Van Der Velden	1	70.10%	1. Nf3 d5 2. g3 c5 3. Bg2 Nf6
2026.09.12	Round 2: Smeets, Kobe - Grooten, Tommy	2.6	2026.09.12 Smeets, Kobe (1063910) (2325)	1	95.20%	1. e4 c5 2. Nf3 Nc6 3. Nc3 g6
2026.09.12	Round 1: Grooten, Tommy - Verkooyen, Frank	1.2	2026.09.12 Verkooyen, Frank (1053167) (2071)	1	76.10%	1. Nf3 d5 2. g3 e6 3. Bg2 c5
2026.09.12	Round 2.5: Grooten, Tommy - Bosboom, Manuel	10.3	2026.09.12 Bosboom, Manuel (1000080) (2357)	0	89.50%	1. Nf3 d6 2. d4 g6 3. c4 Bg7
2026.09.12	Round 2.3: Arthur De Winter - Grooten, Tommy	8.3	2026.09.12 Arthur De Winter	1	91.70%	1. d4 f5 2. Nf3 Nf6 3. g3 g6
2026.09.12	Round 2.2: Grooten, Tommy - Warmerdam, Max	7.2	2026.09.12 Warmerdam, Max (1048104) (2564)	0	83.90%	1. Nf3 d5 2. g3 Nd7 3. d4 b5
2026.09.12	Round 2.1: Bijlsma, Nick - Grooten, Tommy	6.2	2026.09.12 Bijlsma, Nick (1007041) (2229)	0	78.40%	1. d4 f5 2. Nf3 Nf6 3. g3 g6
2026.09.08	Round 3: Grooten, Tommy - Bok, Benjamin	3.1	2026.09.08 Bok, Benjamin (1017063) (2603)	0	81.50%	1. Nf3 d5 2. g3 c6 3. Bg2 Bg4
2026.09.08	Round 2.4: Vogels, Mathijs - Grooten, Tommy	9.1	2026.09.08 Vogels, Mathijs (1085824) (1955)	1	-	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.08.01	European Youth Team Chess Championship - Open18	7.18	2026.08.01 Kolimar, Kristof Pal (798410) (2357)	1	93.70%	1. d4 f5 2. c4 Nf6 3. Nc3 d6
2026.07.19	Amsterdam Chess Festival 2026 - Groep A	9.4	2026.07.19 Duijker, Rick (1010565) (2195)	½	89.70%	1. Nf3 Nf6 2. g3 c5 3. Bg2 g6
2026.07.18	Amsterdam Chess Festival 2026 - Groep A	8.5	2026.07.18 Belin, Anton (34610952) (2206)	½	91.50%	1. e4 c5 2. Nf3 Nc6 3. Bb5 d6
2026.07.17	Amsterdam Chess Festival 2026 - Groep A	7.5	2026.07.17 Kazarjan, Gachatur (1068750) (2299)	½	97.10%	1. d4 d5 2. c4 e6 3. Nc3 Nf6
2026.07.16	Amsterdam Chess Festival 2026 - Groep A	6.3	2026.07.16 Schilstra, Laurens (1043218) (2194)	1	93.80%	1. e4 c5 2. Nf3 Nc6 3. Bb5 d6
2026.07.15	Amsterdam Chess Festival 2026 - Groep A	5.11	2026.07.15 Vroombout, Enrico (1008730) (2066)	1	96.10%	1. c4 g6 2. Nc3 Bg7 3. d4 Nf6
2026.06.20	HSG Open 2026 A	3.8	2026.06.20 Midem, Ismail Eren (26320991) (2026)	½	90.40%	1. Nf3 Nf6 2. c4 e6 3. g3 d5
2026.06.19	HSG Open 2026 A	2.7	2026.06.19 Grooten, Herman (1000330) (2177)	0	89.40%	1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7
2026.06.19	HSG Open 2026 A	1.12	2026.06.19 Mullink, Jochem (1039369) (2161)	1	87.10%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.05.24	Round 8: Grooten, Tommy - Simenon, Jozef	8.4	2026.05.24 Simenon, Jozef (1012916) (2288)	1	-	1. Nf3 b6 2. e4 Bb7 3. Nc3 e6
2026.05.23	Round 5: Grooten, Tommy - Den Hartog, Marijn	5.1	2026.05.23 Den Hartog, Marijn (1046098) (2209)	0	-	1. d4 d5 2. c4 e6 3. Nc3 a6
2026.05.19	Round 13: Slagboom, Leandro - Grooten, Tommy	13.1	2026.05.19 Slagboom, Leandro (1065882) (2334)	0	88.20%	1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7
2026.05.19	Round 12: Grooten, Tommy - Bekker, Stefan	12.1	2026.05.19 Bekker, Stefan (1022229) (2367)	½	94.90%	1. d4 Nf6 2. Nf3 e6 3. Bf4 c5
2026.05.19	Round 11: Ootes, Lars - Grooten, Tommy	11.1	2026.05.19 Ootes, Lars (1019708) (2363)	1	94.20%	1. c4 Nf6 2. Nc3 c5 3. Nf3 d5
2026.05.19	Round 10: Grooten, Tommy - Pel, Bonno	10.1	2026.05.19 Pel, Bonno (1004760) (2286)	0	89.00%	1. Nf3 g6 2. d4 Bg7 3. c4 d6
2026.05.19	Round 9: De Boer, Eelke - Grooten, Tommy	9.1	2026.05.19 De Boer, Eelke (1048120) (2406)	0	90.80%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.05.19	Round 7: Jellema, Pieter - Grooten, Tommy	7.1	2026.05.19 Jellema, Pieter (1094165) (2193)	1	92.30%	1. d4 Nf6 2. f3 d5 3. e4 dxe4
2026.05.19	Round 6: Grooten, Tommy - Kamphuis, Jasper	6.1	2026.05.19 Kamphuis, Jasper (1059025) (2134)	1	98.50%	1. Nf3 d5 2. c4 d4 3. b4 c5
2026.05.19	Round 4: Grooten, Tommy - Terlouw, Wouter	4.1	2026.05.19 Terlouw, Wouter (1087401) (2259)	½	95.50%	1. Nf3 c5 2. c4 g6 3. e3 Nf6
2026.05.19	Round 3: Aravindhan, Achyuth - Grooten, Tommy	3.1	2026.05.19 Aravindhan, Achyuth (1084216) (2213)	½	95.50%	1. e4 c5 2. Nf3 e6 3. Qe2 Nc6
2026.05.19	Round 2: Grooten, Tommy - Van der Werf, Mark	2.1	2026.05.19 Van der Werf, Mark (1000470) (2384)	0	82.50%	1. d4 Nf6 2. c4 e6 3. Nf3 c5
2026.05.19	Round 1: Grochal, Joey - Grooten, Tommy	1.1	2026.05.19 Grochal, Joey (1019945) (2253)	0	89.80%	1. d4 Nf6 2. c4 e6 3. Nf3 c5
2026.05.17	Round 6: Grooten, Tommy - Martyr, Reginald	6.12	2026.05.17 Martyr, Reginald (7701810) (2160)	1	96.00%	1. d4 f5 2. Bg5 h6 3. Bh4 g5
2026.05.15	Round 1: Krylov, Philippe - Grooten, Tommy	1.10	2026.05.15 Krylov, Philippe (1082930) (2083)	½	89.50%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2026.05.10	Ronde 6: Mostertman, Milan - Grooten, Tommy	6.2	2026.05.10 Mostertman, Milan (1025848) (2258)	½	91.90%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.05.10	Ronde 5: Grooten, Tommy - Beerdsen, Thomas	5.1	2026.05.10 Beerdsen, Thomas (1030108) (2518)	½	89.50%	1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7
2026.05.09	Ronde 2: Sourav Bhattacharjee - Grooten, Tommy	2.3	2026.05.09 Bhattacharjee, Sourav (1048090) (2189)	1	97.10%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.05.08	Round 1: Grooten, Tommy - Rex Van Dijken	1.4	2026.05.08 Van Dijken, Rex (1015311) (2042)	1	73.70%	1. d4 d6 2. c4 f5 3. Nf3 Nf6
2026.05.06	Ronde 4: Ritzerveld, Noah - Grooten, Tommy	4.1	2026.05.06 Ritzerveld, Noah (1085760) (2212)	½	91.10%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.05.06	Ronde 3: Grooten, Tommy - Lorelei Cornelisse	3.1	2026.05.06 Cornelisse, Lorelei (1087177) (2185)	1	94.50%	1. Nf3 d5 2. c4 e6 3. g3 Nf6
2026.05.02	Round 9: Grooten, Tommy - Gudok, Viktor	9.15	2026.05.02 Gudok, Viktor (14104539) (1990)	1	98.50%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2026.05.02	Round 8: Grooten, Tommy - Van Batenburg, Mees	8.8	2026.05.02 Van Batenburg, Mees (1078259) (2219)	0	86.90%	1. d4 e6 2. c4 Nf6 3. Nc3 Bb4
2026.05.02	Round 7: Labruyere, Roger - Grooten, Tommy	7.10	2026.05.02 Labruyere, Roger (1059505) (2128)	½	85.40%	1. e4 c5 2. Nf3 e6 3. c3 Nf6
2026.05.02	Round 6: Grooten, Tommy - Surkol, Hector	6.10	2026.05.02 Surkol, Hector (264130) (1961)	1	97.10%	1. d4 Nf6 2. c4 e6 3. Nc3 d5
2026.05.02	Round 5: Ferreira, Jorge Viterbo - Grooten, Tommy	5.6	2026.05.02 Ferreira, Jorge Viterbo (1910850) (2435)	0	91.30%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2026.05.02	Round 4: Grooten, Tommy - Kshirsagar, Pranav	4.13	2026.05.02 Kshirsagar, Pranav (1084011) (2060)	1	97.40%	1. d4 Nf6 2. c4 e6 3. Nc3 d5
2026.05.02	Round 3: Wieringa, Helmer - Grooten, Tommy	3.13	2026.05.02 Wieringa, Helmer (1021729) (1948)	1	94.90%	1. e4 c5 2. Nc3 d6 3. f4 g6
2026.05.02	Round 2: Grooten, Tommy - Jong, Casijn	2.15	2026.05.02 Jong, Casijn (40126277) (1865)	1	98.20%	1. d4 Nf6 2. c4 c5 3. d5 e6
2026.05.02	Round 1: Cornelissen, Jort - Grooten, Tommy	1.14	2026.05.02 Cornelissen, Jort (1098160) (1732)	1	89.10%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.04.30	Round 7: Grooten, Tommy - Wierenga, Luuk	7.6	2026.04.30 Wierenga, Luuk (1094874) (1977)	1	96.00%	1. Nf3 d5 2. g3 Nf6 3. Bg2 c6
2026.04.29	Round 6: De Jong, Lode - Grooten, Tommy	6.3	2026.04.29 De Jong, Lode (40101860) (1902)	0	82.50%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2026.04.29	Round 5: Grooten, Tommy - Teianu, Maxim	5.3	2026.04.29 Teianu, Maxim (40101967) (2024)	½	89.90%	1. g3 d5 2. Nf3 g6 3. Bg2 Bg7
2026.04.27	Round 4: Kurt, Sascha - Grooten, Tommy	4.3	2026.04.27 Kurt, Sascha (1082647) (2280)	1	95.00%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2026.04.26	Round 3: Grooten, Tommy - Okita, Shinsaku	3.7	2026.04.26 Okita, Shinsaku (1094823) (1899)	1	97.80%	1. d4 d5 2. Nf3 Nf6 3. Bf4 c6
2026.04.25	Round 2: Roebers, Bregje - Grooten, Tommy	2.7	2026.04.25 Roebers, Bregje (1085174) (1945)	½	96.00%	1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6
2026.04.12	Round 1: Grooten, Tommy - Winter, Sven	1.1	2026.04.12 Winter, Sven (1092375) (2013)	0	70.60%	1. Nf3 Nf6 2. c4 b6 3. g3 Bb7
2026.04.11	Round 9: Grooten, Tommy - Ferreira, Jorge Viterbo	1.2	2026.04.11 Ferreira, Jorge Viterbo (1910850) (2515)	½	98.40%	1. Nf3 d5 2. g3 Bg4 3. Bg2 e6
2026.03.28	Round 6: Fier, Alexandr - Boelhouwer, Collin	6.7	2026.03.28 Boelhouwer, Collin (1013300) (2122)	1	98.30%	1. Nf3 d5 2. g3 Bg4 3. Bg2 Nf6
2026.03.08	Meesterklasse	8	2026.03.08 Bijlsma, Nick (1007041) (2283)	1	-	1. Nf3 Nf6 2. g3 d5 3. Bg2 e6
2026.02.22	Round 6: Håvard Haug - Grooten, Tommy	6.2	2026.02.22 Håvard Haug	½	96.40%	1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7
2026.02.22	Round 5: Grooten, Tommy - Mostertman, Milan	5.5	2026.02.22 Mostertman, Milan (1025848) (2228)	1	96.30%	1. Nf3 Nf6 2. c4 e6 3. g3 d5
2026.02.20	Round 3: Grooten, Tommy - Pijpers, Arthur	3.1	2026.02.20 Pijpers, Arthur (1019554) (2475)	½	99.30%	1. d4 Nf6 2. c4 g6 3. Nc3 d5
2026.02.07	Round 7: Grooten, Tommy - Labruyere, Roger	7.8	2026.02.07 Labruyere, Roger (1059505) (2204)	1	98.00%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.12.29	Round 9: Albers, Sasa - Grooten, Tommy	9.12	2025.12.29 Albers, Sasa (1068253) (2345)	1	91.80%	1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7
2025.12.28	Round 8: Grooten, Tommy - Elmi, Saad Abobaker	8.10	2025.12.28 Elmi, Saad Abobaker (1553259) (2409)	½	94.70%	1. Nf3 d5 2. g3 Nf6 3. Bg2 e6
2025.12.28	Round 7: Manafov, Vugar - Grooten, Tommy	7.7	2025.12.28 Manafov, Vugar (13410814) (2438)	0	86.50%	1. d4 Nf6 2. Bf4 c5 3. d5 b5
2025.12.27	Chessfestival Groningen 2025 Open A	3.22	2025.12.27 Bakija, Alan (1068016) (2139)	½	-	1. Nf3 Nf6 2. c4 e6 3. Nc3 c5
2025.12.26	Round 6: Grooten, Tommy - Grooten, Herman	6.11	2025.12.26 Grooten, Herman (1000330) (2176)	1	-	1. d4 Nf6 2. c4 e6 3. g3 c5
2025.12.26	Chessfestival Groningen 2025 Open A	2.22	2025.12.26 Kleibeuker, Mika (1088661) (2116)	½	-	1. Nf3 Nf6 2. c4 e6 3. g3 d5
2025.12.26	Round 5: Grooten, Tommy - Ondersteijn, Niels	5.8	2025.12.26 Ondersteijn, Niels (1011162) (2378)	1	-	1. Nf3 Nf6 2. c4 e6 3. g3 d5
2025.12.24	Round 5: De Boer, Eelke - Grooten, Tommy	5.12	2025.12.24 De Boer, Eelke (1048120) (2436)	1	97.80%	1. d4 Nf6 2. c4 g6 3. Nc3 d5
2025.12.24	Round 4: Grooten, Tommy - Labruyere, Roger	4.22	2025.12.24 Labruyere, Roger (1059505) (2173)	1	94.80%	1. d4 Nf6 2. c4 e6 3. Nc3 d5
2025.12.21	Round 1: Bernadskiy, Vitaliy - Grooten, Tommy	1.3	2025.12.21 Bernadskiy, Vitaliy (14100371) (2522)	0	-	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2025.11.22	Round 4: Gallasch, Jonas - Grooten, Tommy	4.7	2025.11.22 Gallasch, Jonas (16222474) (2318)	0	92.00%	1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6
2025.11.07	KNSB competitie 2025/2026	3.5	2025.11.07 Pijpers, Arthur (1019554) (2479)	1	-	1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7
2025.10.25	Round 9: Grooten, Tommy - De Jong, Lode	9.12	2025.10.25 De Jong, Lode (40101860) (1986)	1	-	1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5
2025.10.24	Round 8: De Jong, Migchiel - Grooten, Tommy	8.9	2025.10.24 De Jong, Migchiel (1002848) (2258)	0	-	1. Nf3 d5 2. e3 Nf6 3. c4 c6
2025.10.23	Round 7: Grooten, Tommy - Mostertman, Milan	7.11	2025.10.23 Mostertman, Milan (1025848) (2236)	1	87.60%	1. Nf3 Nf6 2. c4 e6 3. g3 d5
2025.10.22	Round 6: Li, Hewei - Grooten, Tommy	6.16	2025.10.22 Li, Hewei (34619763) (2022)	½	91.90%	1. Nf3 Nf6 2. g3 g6 3. b3 Bg7
2025.10.21	Round 5: Van Batenburg, Mees - Grooten, Tommy	5.10	2025.10.21 Van Batenburg, Mees (1078259) (2231)	½	93.60%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2025.10.21	Round 4: Grooten, Tommy - Maris, Ivo	4.7	2025.10.21 Maris, Ivo (1028146) (2389)	½	97.00%	1. Nf3 Nf6 2. c4 e6 3. g3 b6
2025.10.20	Round 3: Grooten, Tommy - Stefan, Iulia-Cristiana	3.19	2025.10.20 Stefan, Iulia-Cristiana (1273876) (1997)	1	95.80%	1. Nf3 d5 2. c4 e6 3. g3 Nf6
2025.10.19	Round 2: Raja Harshit - Grooten, Tommy	2.4	2025.10.19 Raja Harshit (5089000) (2476)	0	91.40%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2025.10.18	Round 1: Grooten, Tommy - Struik, Marcel	1.30	2025.10.18 Struik, Marcel (1035886) (1945)	1	95.90%	1. Nf3 Nf6 2. c4 c6 3. d4 d5
2025.10.04	Round 2: Schoorl, Rob - Grooten, Tommy	2.9	2025.10.04 Schoorl, Rob (1009508) (2273)	½	94.00%	1. Nf3 d5 2. c4 e6 3. g3 Nf6
2025.09.20	Round 1: Grooten, Tommy - Geirnaert, Steven	1.7	2025.09.20 Geirnaert, Steven (203866) (2397)	½	96.90%	1. Nf3 Nf6 2. c4 e6 3. g3 d5
2025.09.13	Round 11: Grooten, Tommy - Schilstra, Laurens	11.2	2025.09.13 Schilstra, Laurens (1043218) (2224)	0	87.40%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2025.09.13	Round 10: Bosboom, Manuel - Grooten, Tommy	10.5	2025.09.13 Bosboom, Manuel (1000080) (2365)	0	92.40%	1. c4 Nf6 2. Nf3 g6 3. b3 Bg7
2025.09.13	Round 9: Grooten, Tommy - Arthur De Winter	9.3	2025.09.13 Arthur De Winter	0	86.50%	1. d4 d5 2. c4 e6 3. Nc3 a6
2025.09.13	Round 8: Erik Van Den Doel - Grooten, Tommy	8.4	2025.09.13 Erik Van Den Doel	0	86.90%	1. Nf3 Nf6 2. d4 g6 3. Nbd2 d5
2025.09.13	Round 7: Grooten, Tommy - Bok, Benjamin	7.4	2025.09.13 Bok, Benjamin (1017063) (2632)	0	84.90%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.09.13	Round 6: Vrolijk, Liam - Grooten, Tommy	6.3	2025.09.13 Vrolijk, Liam (1048333) (2509)	0	91.30%	1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7
2025.09.13	Round 5: Grooten, Tommy - Loek Van Wely	5.5	2025.09.13 Loek Van Wely	0	85.40%	1. d4 Nf6 2. c4 g6 3. Nc3 d5
2025.09.13	Round 4: Hing Ting Lai - Grooten, Tommy	4.2	2025.09.13 Hing Ting Lai	0	85.40%	1. b3 e5 2. Bb2 d6 3. d4 exd4
2025.09.13	Round 3: Grooten, Tommy - Mees Van Batenburg	3.6	2025.09.13 Mees Van Batenburg	0	88.60%	1. Nf3 d5 2. c4 e6 3. g3 d4
2025.09.13	Round 1: Grooten, Herman - Grooten, Tommy	1.6	2025.09.13 Grooten, Herman (1000330) (2206)	½	99.00%	1. d4 d5 2. c4 c6 3. cxd5 cxd5
2025.09.08	Round 2: Schoorl, Rob - Grooten, Tommy	2.1	2025.09.08 Schoorl, Rob (1009508) (2351)	0	87.60%	1. Nf3 Nf6 2. g3 b6 3. c4 Bb7
2025.07.30	Round 9: Van Kuijk, Vadim - Grooten, Tommy	9.21	2025.07.30 Van Kuijk, Vadim (1058274) (2087)	½	88.20%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2025.07.29	Round 8: Grooten, Tommy - Gergin, Isafara	8.25	2025.07.29 Gergin, Isafara (1082167) (1968)	1	87.40%	1. d4 d5 2. c4 e6 3. Nc3 Nf6
2025.07.28	Round 7: Van den Berg, Jeroen - Grooten, Tommy	7.21	2025.07.28 Van den Berg, Jeroen (1057510) (2073)	0	73.30%	1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6
2025.07.27	Round 6: Grooten, Tommy - Dordevic, Tom	6.19	2025.07.27 Dordevic, Tom (16260503) (2145)	0	81.50%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2025.07.26	Round 5: Van Roon, Sjoerd - Grooten, Tommy	5.13	2025.07.26 Van Roon, Sjoerd (1051075) (2270)	½	98.10%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2025.07.25	Round 4: De Wit, Evan - Grooten, Tommy	4.24	2025.07.25 De Wit, Evan (1096389) (2003)	1	94.40%	1. c4 b6 2. e4 Bb7 3. Nc3 e6
2025.07.24	Round 3: Grooten, Tommy - Bruggink, Tycho	3.23	2025.07.24 Bruggink, Tycho (1050028) (2027)	½	88.20%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2025.07.23	Round 2: Grooten, Tommy - Van t Hoff, Tom	2.24	2025.07.23 Van t Hoff, Tom (1060538) (2047)	½	91.00%	1. c4 Nf6 2. Nc3 e6 3. e4 c5
2025.07.22	Round 1: De Boer, Eelke - Grooten, Tommy	1.6	2025.07.22 De Boer, Eelke (1048120) (2434)	0	84.60%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2025.06.01	Round 6: Schelvis, Richard - Grooten, Tommy	6.9	2025.06.01 Schelvis, Richard (1039261) (2176)	1	91.20%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2025.05.30	Round 1: Grooten, Tommy - Ozbek, Ahmet Naim	1.12	2025.05.30 Ozbek, Ahmet Naim (40101975) (1915)	0	-	1. c4 Nf6 2. d4 e6 3. Nc3 Bb4
2025.05.18	Round 6: Van Doren, Bas - Grooten, Tommy	6.5	2025.05.18 Van Doren, Bas (1048503) (2148)	1	92.70%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2025.05.18	Round 5: Grooten, Tommy - Terlouw, Wouter	5.3	2025.05.18 Terlouw, Wouter (1087401) (2227)	½	98.20%	1. Nf3 Nf6 2. c4 e6 3. g3 d5
2025.05.17	Round 4: Haitjema, Jarich - Grooten, Tommy	4.5	2025.05.17 Haitjema, Jarich (1041800) (2020)	1	88.70%	1. e4 c5 2. Nf3 e6 3. c3 Nf6
2025.05.17	Round 3: Grooten, Tommy - Darie, Aden	3.12	2025.05.17 Darie, Aden (1094831) (1905)	1	97.70%	1. Nf3 e6 2. c4 b6 3. g3 Bb7
2025.05.17	Round 2: Simons, Rudy - Grooten, Tommy	2.13	2025.05.17 Simons, Rudy (1003801) (1979)	½	88.50%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2025.05.16	Round 1: Grooten, Tommy - Geboers, Jimmy	1.6	2025.05.16 Geboers, Jimmy (262919) (1933)	½	82.40%	1. Nf3 Nf6 2. c4 c5 3. g3 b6
2025.05.02	Round 7: Grooten, Tommy - Darie, Aden	7.5	2025.05.02 Darie, Aden (1094831) (1905)	1	93.90%	1. Nf3 e6 2. c4 f5 3. d4 Nf6
2025.05.01	Round 6: Kshirsagar, Pranav - Grooten, Tommy	6.6	2025.05.01 Kshirsagar, Pranav (1084011) (2137)	½	86.70%	1. d4 d5 2. c4 c6 3. Nc3 Nf6
2025.04.30	Round 5: Chua, Ethan - Grooten, Tommy	5.5	2025.04.30 Chua, Ethan (1089250) (2121)	½	91.70%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2025.04.29	Round 4: Grooten, Tommy - Krylov, Philippe	4.4	2025.04.29 Krylov, Philippe (1082930) (2169)	0	73.10%	1. Nf3 d5 2. c4 e6 3. g3 Nf6
2025.04.28	Round 3: Wink, Luka - Grooten, Tommy	3.3	2025.04.28 Wink, Luka (1085930) (2245)	½	95.60%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2025.04.27	Round 2: Groenewoud, Joel - Grooten, Tommy	2.6	2025.04.27 Groenewoud, Joel (1087746) (2083)	1	98.40%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2025.04.26	Round 1: Grooten, Tommy - De Jong, Lode	1.4	2025.04.26 De Jong, Lode (40101860) (2031)	½	83.30%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.03.15	Round 7: Grooten, Tommy - Giri, Anish	7.1	2025.03.15 Giri, Anish (24116068) (2688)	0	87.70%	1. Nf3 Nf6 2. c4 b6 3. g3 Bb7
2025.03.15	Round 6: Warmerdam, Max - Grooten, Tommy	6.3	2025.03.15 Warmerdam, Max (1048104) (2517)	*	-	1. Nf3 Nf6 2. c4 e6 3. b3 Be7
2025.03.15	Round 5: Grooten, Tommy - Smeets, Kobe	5.6	2025.03.15 Smeets, Kobe (1063910) (2132)	*	-	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2025.03.15	Round 4: Pham, Khoi - Grooten, Tommy	4.7	2025.03.15 Pham, Khoi (1054988) (2292)	1	92.00%	1. d4 Nf6 2. c4 e6 3. Nf3 c5
2025.03.15	Round 3: Ivic, Velimir - Grooten, Tommy	3.3	2025.03.15 Ivic, Velimir (950122) (2490)	0	87.10%	1. e4 c5 2. Nf3 e6 3. d3 d5
2025.03.15	Round 2: Grooten, Tommy - Dgebuadze, Alexandre	2.7	2025.03.15 Dgebuadze, Alexandre (203882) (2454)	1	62.90%	1. d4 e6 2. Nf3 Nf6 3. g3 c5
2024.12.30	Round 9: Sharma, Dinesh K. - Grooten, Tommy	9.21	2024.12.30 Sharma, Dinesh K. (5004110) (2200)	0	86.40%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.12.29	Round 8: Zecha, Oscar - Grooten, Tommy	8.26	2024.12.29 Zecha, Oscar (1073826) (2134)	1	85.40%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.12.28	Round 7: Grooten, Tommy - Dolzhykova, Kateryna	7.19	2024.12.28 Dolzhykova, Kateryna (14113414) (2322)	0	82.40%	1. Nf3 Nf6 2. c4 g6 3. b4 a5
2024.12.27	Round 6: Vijayakumar, Rishi - Grooten, Tommy	6.19	2024.12.27 Vijayakumar, Rishi (2408953) (2204)	0	84.70%	1. d4 Nf6 2. c4 e6 3. Nf3 c5
2024.12.26	Round 5: Grooten, Tommy - De Jong, Migchiel	5.18	2024.12.26 De Jong, Migchiel (1002848) (2275)	½	95.00%	1. d4 e6 2. c4 Bb4+ 3. Bd2 a5
2024.12.24	Round 4: Mitusov, Semen - Grooten, Tommy	4.8	2024.12.24 Mitusov, Semen (14151049) (2465)	0	73.70%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.12.23	Round 3: Grooten, Tommy - Schoorl, Rob	3.17	2024.12.23 Schoorl, Rob (1009508) (2295)	1	94.60%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2024.12.22	Round 2: Van der Hagen, Loek - Grooten, Tommy	2.19	2024.12.22 Van der Hagen, Loek (1052853) (2315)	½	95.80%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.12.21	Round 1: Grooten, Tommy - Koster, Ramon	1.16	2024.12.21 Koster, Ramon (1008544) (2330)	½	97.60%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2024.11.02	Round 9: Madularea, David - Grooten, Tommy	9.19	2024.11.02 Madularea, David (1070215) (2163)	0	87.20%	1. e4 e5 2. Nc3 Nf6 3. d4 exd4
2024.11.01	Round 8: Grooten, Tommy - Bakija, Alan	8.17	2024.11.01 Bakija, Alan (1068016) (2218)	½	96.20%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2024.10.31	Round 7: Van Zutphen, Jimmy - Grooten, Tommy	7.18	2024.10.31 Van Zutphen, Jimmy (1013890) (2125)	½	88.20%	1. d4 Nf6 2. Bf4 g6 3. e3 Bg7
2024.10.30	Round 6: Grooten, Tommy - Van Helvoort, Rob	6.19	2024.10.30 Van Helvoort, Rob (1005596) (2164)	½	88.30%	1. d4 e6 2. c4 b6 3. Nc3 Bb7
2024.10.30	Round 5: Aravindhan, Achyuth - Grooten, Tommy	5.15	2024.10.30 Aravindhan, Achyuth (1084216) (2173)	½	93.40%	1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4
2024.10.29	Round 4: Grooten, Tommy - Vaupot, Kajetan	4.25	2024.10.29 Vaupot, Kajetan (14641003) (1870)	1	92.70%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2024.10.28	Round 3: Kazarjan, Gachatur - Grooten, Tommy	3.19	2024.10.28 Kazarjan, Gachatur (1068750) (2163)	0	79.50%	1. e4 c5 2. Nf3 e6 3. Nc3 d6
2024.10.27	Round 2: Grooten, Herman - Grooten, Tommy	2.21	2024.10.27 Grooten, Herman (1000330) (2216)	1	92.80%	1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7
2024.10.26	Round 1: Grooten, Tommy - Ritzerveld, Noah	1.17	2024.10.26 Ritzerveld, Noah (1085760) (2281)	0	87.00%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2024.09.14	Round 11: Grooten, Tommy - Ratsma, Midas	11.2	2024.09.14 Ratsma, Midas (1032283) (2172)	0	78.50%	1. d4 Nc6 2. Nf3 g6 3. d5 Nb8
2024.09.14	Round 10: Schilstra, Laurens - Grooten, Tommy	10.5	2024.09.14 Schilstra, Laurens (1043218) (2178)	0	85.50%	1. e4 c5 2. Nc3 Nc6 3. g3 g6
2024.09.14	Round 9: Grooten, Tommy - Tikranian, Alik	9.3	2024.09.14 Tikranian, Alik (1040952) (2284)	1	96.80%	1. d4 Nf6 2. c4 c5 3. d5 b5
2024.09.14	Round 8: Koster, Ramon - Grooten, Tommy	8.4	2024.09.14 Koster, Ramon (1008544)	½	87.80%	1. d4 Nf6 2. c4 e6 3. Nc3 c5
2024.09.14	Round 7: Grooten, Tommy - Admiraal, Miguoel	7.4	2024.09.14 Admiraal, Miguoel (1019716) (2438)	0	88.00%	1. d4 d5 2. c4 e6 3. Nf3 a6
2024.09.14	Round 6: Elgersma, Onno - Grooten, Tommy	6.3	2024.09.14 Elgersma, Onno (1053531) (2253)	0	86.20%	1. e4 c5 2. Nf3 e6 3. g3 g6
2024.09.14	Round 5: Grooten, Tommy - Van Delft, Merijn	5.5	2024.09.14 Van Delft, Merijn (1004670) (2377)	0	86.90%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.09.14	Round 4: Kazarjan, Gachatur - Grooten, Tommy	4.2	2024.09.14 Kazarjan, Gachatur (1068750) (1942)	1	95.90%	1. e4 c5 2. a3 e6 3. b4 d5
2024.09.14	Round 3: Grooten, Tommy - Kerkmeester, Cedric	3.6	2024.09.14 Kerkmeester, Cedric (1072579) (1954)	1	92.20%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.09.14	Round 2: Grochal, Joey - Grooten, Tommy	2.1	2024.09.14 Grochal, Joey (1019945) (2225)	0	86.90%	1. d4 Nf6 2. c4 e6 3. Nf3 c5
2024.09.14	Round 1: Grooten, Herman - Grooten, Tommy	1.6	2024.09.14 Grooten, Herman (1000330) (2145)	1	87.60%	1. d4 Nf6 2. c4 e6 3. Nf3 c5
2024.09.14	Round 2: Grooten, Tommy - Van Delft, Merijn	5.4	2024.09.14 Van Delft, Merijn (1004670) (2377)	0	85.00%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.09.14	Round 2: Schelvis, Richard - Grooten, Tommy	4.6	2024.09.14 Schelvis, Richard (1039261) (2070)	0	87.00%	1. d4 Nf6 2. Nf3 e6 3. g3 d5
2024.09.14	Round 2: Grooten, Tommy - Moll, Arne	3.5	2024.09.14 Moll, Arne (1005820) (2247)	½	93.40%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2024.09.14	Round 2: Admiraal, Miguoel - Grooten, Tommy	2.5	2024.09.14 Admiraal, Miguoel (1019716) (2438)	½	67.70%	1. d4 Nf6 2. Bf4 d5 3. e3 Bf5
2024.09.14	Round 2: Grooten, Tommy - Pham, Khoi	1.6	2024.09.14 Pham, Khoi (1054988) (2292)	1	81.20%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.08.31	EYCC 2024 - O14	9.4	2024.08.31 Kviriashvili, Andria (13626957) (1918)	0	85.90%	1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6
2024.08.30	EYCC 2024 - O14	8.6	2024.08.30 Stichter, Constantin Paul (34603140) (1961)	½	87.30%	1. e4 e6 2. d4 d5 3. Nd2 c5
2024.08.29	EYCC 2024 - O14	7.4	2024.08.29 Shevchenko, Yaroslav (34144684) (2038)	½	98.80%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2024.08.28	EYCC 2024 - O14	6.16	2024.08.28 Battistelli, Fausto (267732) (2011)	½	87.50%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.08.26	EYCC 2024 - O14	5.6	2024.08.26 Cieslak, Patryk (21078882) (2374)	0	91.00%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.08.25	EYCC 2024 - O14	4.3	2024.08.25 Haug, Havard (1547887) (2315)	0	91.70%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2024.08.24	EYCC 2024 - O14	3.10	2024.08.24 Guretchii, Kirill (13911872) (2034)	1	90.60%	1. d4 Nf6 2. c4 e6 3. Nf3 c5
2024.08.23	EYCC 2024 - O14	2.5	2024.08.23 Popov, Roman (23732580) (1962)	1	93.10%	1. d4 d5 2. c4 c5 3. Nc3 Nf6
2024.08.22	EYCC 2024 - O14	1.10	2024.08.22 Tequi, Lucas (4008235) (1881)	1	98.70%	1. e4 c5 2. Nf3 e6 3. c3 Nf6
2024.08.20	EYCC 2024 Blitz O14	18.9	2024.08.20 Sava, Robert-Gabriel (1265725) (1990)	½	86.80%	1. f4 e5 2. fxe5 d6 3. g3 dxe5
2024.08.20	EYCC 2024 Blitz O14	17.9	2024.08.20 Sava, Robert-Gabriel (1265725) (1990)	0	79.50%	1. d4 Nf6 2. c4 c5 3. d5 e6
2024.08.20	EYCC 2024 Blitz O14	16.10	2024.08.20 Ordiz Fernandez, Roque (54741467) (2041)	1	89.20%	1. e4 c5 2. c3 Nf6 3. e5 Nd5
2024.08.20	EYCC 2024 Blitz O14	15.10	2024.08.20 Ordiz Fernandez, Roque (54741467) (2041)	½	88.80%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.08.20	EYCC 2024 Blitz O14	14.15	2024.08.20 Zhu, Pengxiao (499307) (2028)	1	82.40%	1. f4 d5 2. Nf3 Nf6 3. e3 g6
2024.08.20	EYCC 2024 Blitz O14	13.15	2024.08.20 Zhu, Pengxiao (499307) (2028)	1	93.80%	1. d4 Nf6 2. c4 e6 3. Nc3 c5
2024.08.20	EYCC 2024 Blitz O14	12.10	2024.08.20 Pilchuk, Artem (34139931) (2198)	0	78.50%	1. f4 d6 2. Nf3 Nc6 3. e4 e5
2024.08.20	EYCC 2024 Blitz O14	11.10	2024.08.20 Pilchuk, Artem (34139931) (2198)	0	75.40%	1. d4 f5 2. g3 Nf6 3. Bg2 e6
2024.08.19	EYCC 2024 Blitz O14	4.7	2024.08.19 SHEVCHENKO, Yaroslav (2189)	0	89.30%	1. d4 Nf6 2. c4 c5 3. d5 b5
2024.08.19	EYCC 2024 Blitz O14	3.7	2024.08.19 SHEVCHENKO, Yaroslav (2189)	0	89.40%	1. d4 e6 2. c4 d5 3. Nc3 c6
2024.08.18	EYCC 2024 Rapid O14	8.15	2024.08.18 Stoyko, Oleh (34148116) (1935)	0	88.20%	1. e4 c5 2. Nf3 e6 3. Bd3 Nc6
2024.08.18	EYCC 2024 Rapid O14	7.11	2024.08.18 Dumbelovic, Novak (9204525) (2340)	0	90.70%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.08.18	EYCC 2024 Rapid O14	6.5	2024.08.18 Finek, Vaclav (23718293) (2338)	0	87.10%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2024.08.17	EYCC 2024 Rapid O14	5.13	2024.08.17 Petrosyan, Tigran Agh. (13316699) (1745)	1	91.60%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.08.17	EYCC 2024 Rapid O14	4.13	2024.08.17 Ordiz Fernandez, Roque (54741467) (2080)	½	92.60%	1. d4 Nf6 2. c4 d6 3. Nf3 g6
2024.08.06	Round 5: De Winter, Arthur - Grooten, Tommy	5.11	2024.08.06 De Winter, Arthur (1069020) (2411)	0	92.90%	1. d4 c5 2. d5 Nf6 3. c4 b5
2024.08.01	Round 9: Koster, Chiel - Grooten, Tommy	9.15	2024.08.01 Koster, Chiel (1047990) (2058)	½	96.10%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.07.31	Round 8: Aarav Sarbalia - Grooten, Tommy	8.14	2024.07.31 Aarav Sarbalia (33382859) (2219)	0	91.80%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.07.30	Round 7: Grooten, Tommy - Odendahl, Reiner	7.11	2024.07.30 Odendahl, Reiner (4613570) (2274)	½	94.30%	1. d4 e6 2. c4 c5 3. d5 exd5
2024.07.29	Round 6: Grooten, Tommy - Kurt, Sascha	6.14	2024.07.29 Kurt, Sascha (1082647) (2071)	½	98.10%	1. Nf3 Nf6 2. c4 g6 3. b4 Bg7
2024.07.27	Round 5: Panjer, Sidney - Grooten, Tommy	5.7	2024.07.27 Panjer, Sidney (16207041) (2204)	0	90.80%	1. Nf3 f5 2. d4 Nf6 3. g3 e6
2024.07.26	Round 4: Grooten, Tommy - Hng, Mei-Xian Eunice	4.15	2024.07.26 Hng, Mei-Xian Eunice (5806585) (2036)	1	93.80%	1. d4 Nf6 2. c4 e6 3. Nc3 c5
2024.07.25	Round 3: Van de Pavoordt, Max - Grooten, Tommy	3.15	2024.07.25 Van de Pavoordt, Max (1036645) (2044)	½	74.10%	1. c4 c5 2. Nf3 Nf6 3. Nc3 b6
2024.07.24	Round 2: Grooten, Tommy - Hausrath, Daniel	2.2	2024.07.24 Hausrath, Daniel (4617495) (2469)	0	85.50%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.07.23	Round 1: Smit, Manuel - Grooten, Tommy	1.24	2024.07.23 Smit, Manuel (1016385) (1969)	1	93.80%	1. Nf3 c5 2. b3 d5 3. e3 Nf6
2024.06.26	Round 5: Emilien 2010: Hallibert - Grooten, Tommy	5.8	2024.06.26 Emilien 2010: Hallibert	1	92.10%	1. c4 a6 2. d4 c5 3. d5 b5
2024.06.16	Round 7: Vincent 2010: Van Rijn - Grooten, Tommy		2024.06.16 Vincent 2010: Van Rijn	1	96.80%	1. e4 a6 2. d4 c5 3. dxc5 Nc6
2024.06.16	Round 3: Sven 2010: Winter - Grooten, Tommy		2024.06.16 Sven 2010: Winter	½	86.70%	1. e4 c5 2. c3 Nf6 3. e5 Nd5
2024.06.16	Round 2: Grooten, Tommy - Deij, Casper		2024.06.16 Deij, Casper (1085816) (1731)	1	94.20%	1. c4 c6 2. g3 Nf6 3. Bg2 d5
2024.06.16	Round 1: Zeenni, Joseph - Grooten, Tommy		2024.06.16 Zeenni, Joseph (40101932)	1	96.20%	1. e4 c5 2. Nf3 e6 3. c3 Nf6
2024.06.15	Round 9: Fransen, Jean-Paul - Grooten, Tommy		2024.06.15 Fransen, Jean-Paul (40101487) (2006)	½	83.20%	1. e4 c5 2. b4 cxb4 3. a3 d5
2024.06.15	Round 8: Grooten, Tommy - Neuwald, Johannes		2024.06.15 Neuwald, Johannes (34683240)	1	85.30%	1. e4 g6 2. d4 Bg7 3. c4 d6
2024.06.15	Round 7: Zhang, Xiheng - Grooten, Tommy		2024.06.15 Zhang, Xiheng (40102386) (1665)	1	85.60%	1. e4 c5 2. Nf3 Nf6 3. Nc3 d6
2024.06.15	Round 6: Grooten, Tommy - Grochal, Joey		2024.06.15 Grochal, Joey (1019945) (2299)	0	87.10%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2024.06.15	Round 5: Groenewoud, Joel - Grooten, Tommy		2024.06.15 Groenewoud, Joel (1087746)	0	90.70%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.06.15	Round 4: Schroer, Marcel - Grooten, Tommy		2024.06.15 Schroer, Marcel (1012908) (2115)	1	95.90%	1. d4 Nf6 2. c4 c5 3. d5 b5
2024.06.15	Round 3: Grooten, Tommy - Van Foreest, Machteld		2024.06.15 Van Foreest, Machteld (1051563) (2118)	0	76.60%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2024.06.15	Round 2: Grooten, Tommy - Cornelisse, Sam		2024.06.15 Cornelisse, Lorelei (1087177)	1	93.30%	1. d4 Nf6 2. c4 c5 3. d5 e6
2024.06.02	WLC Tournament 2024 A	6.6	2024.06.02 Kurt, Sascha (1082647) (2061)	1	77.90%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.06.02	WLC Tournament 2024 A	5.8	2024.06.02 Maters, Arthur (1054422) (2156)	1	93.20%	1. d4 c5 2. d5 e5 3. e4 d6
2024.06.01	WLC Tournament 2024 A	4.7	2024.06.01 Verhoeven, Robin (1054775) (2026)	½	96.30%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2024.06.01	WLC Tournament 2024 A	3.15	2024.06.01 Miltenburg, Steven (40108716)	1	96.80%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.06.01	WLC Tournament 2024 A	2.6	2024.06.01 Baselmans, Sam (1048139) (2220)	0	91.30%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.05.03	Tiebreak round 3: Groenewoud, Joel - Grooten, Tommy		2024.05.03 Groenewoud, Joel (1087746) (2035)	1	91.20%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.05.03	Tiebreak round 2: Grooten, Tommy - Kurt, Sascha		2024.05.03 Kurt, Sascha (1082647) (2061)	½	96.10%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2024.05.03	Round 9: Grooten, Tommy - Groenewoud, Joel		2024.05.03 Groenewoud, Joel (1087746) (2035)	1	96.70%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.05.02	Round 8: Ritzerveld, Noah - Grooten, Tommy		2024.05.02 Ritzerveld, Noah (1085760) (2131)	½	90.70%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.05.01	Round 7: Grooten, Tommy - Zecha, Oscar		2024.05.01 Zecha, Oscar (1073826) (1996)	1	94.70%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2024.05.01	Round 6: Ambrona Navarro, Himar - Grooten, Tommy		2024.05.01 Ambrona Navarro, Himar (94740925) (1965)	1	92.80%	1. d4 c5 2. d5 e5 3. e4 d6
2024.04.30	Round 5: Lalkota, Sai Pranav Tejas - Grooten, Tommy		2024.04.30 Lalkota, Sai Pranav Tejas (1087690) (1782)	1	92.40%	1. c4 c5 2. g3 g6 3. Bg2 Bg7
2024.04.29	Round 4: Grooten, Tommy - Chua, Ethan		2024.04.29 Chua, Ethan (1089250) (2000)	0	83.90%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.04.29	Round 3: Grooten, Tommy - Terlouw, Wouter		2024.04.29 Terlouw, Wouter (1087401) (1961)	0	84.60%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2024.04.28	Round 2: Klein Tuente, Sam - Grooten, Tommy		2024.04.28 Klein Tuente, Sam (1092090) (1732)	1	94.80%	1. e4 c5 2. Nf3 e6 3. c3 Nf6
2024.04.27	Round 1: Grooten, Tommy - De Wit, Evan		2024.04.27 De Wit, Evan (1096389) (1769)	1	90.90%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2024.03.30	Grenke Open	5.40	2024.03.30 Ramirez Marin, Ivan (5117399) (2272)	0	86.40%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2024.03.02	Round 1: Grooten, Tommy - Velten, Paul		2024.03.02 Velten, Paul (681091) (2475)	0	91.80%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2023.05.07	WLC Toernooi 2023 A	6.13	2023.05.07 Bhattacharjee, Sourav (1048090) (2154)	0	82.70%	1. e4 c5 2. Nf3 e6 3. d3 a6
2023.05.06	WLC Toernooi 2023 A	3.14	2023.05.06 Smit, Maarten (1006894) (2019)	0	86.20%	1. c4 e5 2. g3 Nf6 3. Bg2 d5
2023.05.05	WLC Toernooi 2023 A	1.8	2023.05.05 Jansen, Bob (1012550) (2228)	0	83.90%	1. d4 Nf6 2. Bg5 d5 3. Nd2 Bf5
	FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025	8	Goh, Zi Han (5819156) (2041)	0	77.70%	1. c4 e5 2. a3 g6 3. d4 exd4
	FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025	7	Hoch, Guy (2860406) (1731)	1	97.00%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
	FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025	6	Daniil, Daniil (5906768) (1688)	1	91.40%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
	FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025	5	Tao, Sihan (30982677)	½	95.30%	1. c4 e6 2. Nc3 Nf6 3. e4 d5
	FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025	4	Compel, Daniel (14952645) (2009)	1	87.00%	1. d4 Nf6 2. c4 c5 3. d5 b5
	FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025	3	Battistelli, Fausto (267732) (2060)	1	97.00%	1. d4 d5 2. c4 e6 3. Nc3 a6
	FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025	2	Zarylykov, Erhan (13816551) (1817)	1	-	1. d4 d5 2. c4 dxc4 3. Nf3 Nf6
	FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025	1	Gauci, Gabriel (5604680) (1557)	1	98.50%	1. e4 c5 2. b3 e6 3. Bb2 d5
2024.02.11	Round 7: Tommy Grooten - Evan De Wit		2024.02.11 Evan De Wit	1	83.70%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2024.02.11	Round 6: David Madularea - Tommy Grooten		2024.02.11 David Madularea	0	89.40%	1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6
2024.02.11	Round 5: Tommy Grooten - Sono Folkers		2024.02.11 Sono Folkers	1	95.40%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.02.10	Round 4: Ghilon Etienne - Tommy Grooten		2024.02.10 Ghilon Etienne	½	80.10%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.02.10	Round 3: Tommy Grooten - Samuel Lopes		2024.02.10 Samuel Lopes	½	88.30%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2024.02.10	Round 2: William Roolvink - Tommy Grooten		2024.02.10 William Roolvink	1	65.70%	1. e4 c5 2. Nc3 e6 3. Nf3 a6
2024.02.10	Round 1: Tommy Grooten - Casper Deij		2024.02.10 Casper Deij	1	90.50%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2023.08.18	FIDE U16 Olympiad_boards_81-124	9	2023.08.18 Pathee Chiravanich	1	88.20%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2023.08.17	FIDE U16 Olympiad_boards_1-80	8	2023.08.17 Wouter Terlouw	½	88.50%	1. c4 e5 2. Nc3 Bb4 3. Qc2 Nf6
2023.08.17	FIDE U16 Olympiad_boards_81-124	7	2023.08.17 Pak Yu Poon	0	90.70%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2023.08.16	FIDE U16 Olympiad_boards_1-80	6	2023.08.16 Magnus Ermitsch	0	90.90%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2023.08.15	FIDE U16 Olympiad_boards_81-124	5	2023.08.15 Tzu-Yi Anderson Chao	½	83.90%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2023.08.15	FIDE U16 Olympiad_boards_81-124	4	2023.08.15 Yuhiro Muto	½	92.60%	1. e4 c5 2. Nf3 e6 3. c3 Nf6
2023.08.14	FIDE U16 Olympiad_boards_81-124	3	2023.08.14 Hong-Yi Lai	½	89.20%	1. c4 Nf6 2. Nc3 e6 3. d4 d5
2023.08.14	FIDE U16 Olympiad_boards_1-80	2	2023.08.14 Daniil Daniil	½	94.00%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2023.08.13	FIDE U16 Olympiad_boards_1-80	1	2023.08.13 Tong(Qd) Xiao	0	87.80%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4