Player profile
Leenen, Boyd
Dossier
135 of 145 games analyzed.
Accuracy: 89.2%
Opened d4: 46/60Opened e4: 8/60Opened Nf3: 4/60Opened c4: 2/60
Castled kingside: 110Same-side castling: 109Opposite-side castling: 11Castled queenside: 10Did not castle: 4
Played on the queenside: 44Played in the center: 36Played on the kingside: 31Fianchettoed queenside: 31Fianchettoed kingside: 16
Active pieces: 87Initiated exchanges: 86Space advantage: 78Sacrificed material: 60Backward pawn: 60Kept the bishop pair: 57Isolated pawn: 49Missed tactics: 29Avoided exchanges: 22Played gambits: 8
Openings
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As White 63 games 27W 23D 13L
King's Indian Defense 12 games 4W 6D 2L
Orthodox Variation 5 games 1W 2D 2L
(unspecified)
2 games
0W
2D
0L
Glek Defense
1 game
0W
0D
1L
Ukrainian Defense
1 game
1W
0D
0L
Bayonet Attack
1 game
0W
0D
1L
Sämisch Variation 5 games 2W 3D 0L
Sämisch Gambit
1 game
0W
1D
0L
Yates Defense
1 game
0W
1D
0L
Byrne Defense
1 game
1W
0D
0L
Normal Defense
1 game
1W
0D
0L
Closed Variation
1 game
0W
1D
0L
Karpov System 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
Queen's Gambit Declined 10 games 3W 2D 5L
Exchange Variation 8 games 3W 2D 3L
Positional Variation
6 games
2W
2D
2L
Sämisch Variation
2 games
1W
0D
1L
Three Knights Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Ragozin Defense 1 game 0W 0D 1L
Alekhine Variation
1 game
0W
0D
1L
Bogo-Indian Defense 4 games 2W 0D 2L
Nimzowitsch Variation 2 games 0W 0D 2L
(unspecified)
2 games
0W
0D
2L
Grünfeld Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Wade-Smyslov Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Zukertort Opening 4 games 2W 2D 0L
Nimzo-Larsen Variation 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Quiet System 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Trompowsky Attack 4 games 2W 2D 0L
(unspecified) 4 games 2W 2D 0L
(unspecified)
4 games
2W
2D
0L
Queen's Gambit Accepted 3 games 0W 2D 1L
Classical Defense 1 game 0W 1D 0L
Alekhine System, Main Line
1 game
0W
1D
0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Central Variation 1 game 0W 0D 1L
McDonnell Defense
1 game
0W
0D
1L
Semi-Slav Defense 3 games 2W 1D 0L
(unspecified) 2 games 2W 0D 0L
(unspecified)
2 games
2W
0D
0L
Normal Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Italian Game 3 games 0W 2D 1L
Classical Variation 1 game 0W 0D 1L
Giuoco Pianissimo
1 game
0W
0D
1L
Scotch Gambit 1 game 0W 1D 0L
Anderssen Attack
1 game
0W
1D
0L
Giuoco Pianissimo 1 game 0W 1D 0L
Italian Four Knights Variation
1 game
0W
1D
0L
Slav Defense 2 games 1W 1D 0L
Quiet Variation 1 game 1W 0D 0L
Pin Defense
1 game
1W
0D
0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Grünfeld Defense 2 games 1W 0D 1L
Three Knights Variation 2 games 1W 0D 1L
Hungarian Attack
2 games
1W
0D
1L
Queen's Indian Defense 2 games 2W 0D 0L
Petrosian Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Kasparov Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Indian Defense 2 games 1W 0D 1L
Döry Indian 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Anti-Nimzo-Indian 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
French Defense 2 games 1W 1D 0L
Advance Variation 1 game 1W 0D 0L
Euwe Variation
1 game
1W
0D
0L
Exchange Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Sicilian Defense 2 games 1W 1D 0L
Najdorf Variation 1 game 0W 1D 0L
English Attack
1 game
0W
1D
0L
Dragon Variation 1 game 1W 0D 0L
Yugoslav Attack, Panov Variation
1 game
1W
0D
0L
English Opening 2 games 2W 0D 0L
King's English Variation 2 games 2W 0D 0L
Two Knights Variation, Keres Variation
2 games
2W
0D
0L
Queen's Pawn Game 1 game 1W 0D 0L
Zukertort Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Tarrasch Defense 1 game 1W 0D 0L
Dubov Tarrasch 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Ruy Lopez 1 game 1W 0D 0L
Closed 1 game 1W 0D 0L
Keres Defense
1 game
1W
0D
0L
Catalan Opening 1 game 0W 1D 0L
Closed 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
Benko Gambit Accepted 1 game 0W 1D 0L
Fianchetto Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
As Black 65 games 31W 14D 20L
Italian Game 19 games 9W 4D 6L
Classical Variation 8 games 2W 1D 5L
Giuoco Pianissimo
6 games
1W
1D
4L
Giuoco Pianissimo, with a4 a5
1 game
1W
0D
0L
Giuoco Pianissimo, with h6
1 game
0W
0D
1L
Two Knights Defense 6 games 5W 0D 1L
Modern Bishop's Opening
4 games
3W
0D
1L
Polerio Defense, Bishop Check Line
2 games
2W
0D
0L
Scotch Gambit 3 games 1W 2D 0L
Anderssen Attack
2 games
0W
2D
0L
Nakhmanson Gambit
1 game
1W
0D
0L
Evans Gambit 1 game 1W 0D 0L
Pierce Defense
1 game
1W
0D
0L
Giuoco Pianissimo 1 game 0W 1D 0L
Normal
1 game
0W
1D
0L
Ruy Lopez 8 games 3W 2D 3L
Closed 8 games 3W 2D 3L
Keres Defense
2 games
1W
1D
0L
(unspecified)
2 games
0W
0D
2L
Borisenko Variation
2 games
2W
0D
0L
Flohr System
1 game
0W
1D
0L
Anti-Marshall
1 game
0W
0D
1L
Queen's Gambit Declined 6 games 1W 2D 3L
Exchange Variation 3 games 1W 2D 0L
Reshevsky Variation
3 games
1W
2D
0L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Harrwitz Attack 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Orthodox Defense 1 game 0W 0D 1L
Rubinstein Attack
1 game
0W
0D
1L
Catalan Opening 5 games 1W 2D 2L
Closed 5 games 1W 2D 2L
(unspecified)
4 games
1W
2D
1L
Main Line
1 game
0W
0D
1L
English Opening 5 games 3W 1D 1L
Neo-Catalan 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Anglo-Indian Defense 1 game 0W 0D 1L
King's Knight Variation
1 game
0W
0D
1L
Agincourt Defense 1 game 1W 0D 0L
Neo-Catalan Declined
1 game
1W
0D
0L
Caro-Kann Defensive System 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Symmetrical Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Semi-Slav Defense 3 games 2W 1D 0L
(unspecified) 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
Anti-Moscow Gambit 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Indian Defense 3 games 2W 0D 1L
Fianchetto Variation 2 games 1W 0D 1L
Check Variation, Intermezzo Line
1 game
0W
0D
1L
Rubinstein Variation
1 game
1W
0D
0L
Classical Variation 1 game 1W 0D 0L
Traditional Variation, Nimzowitsch Line
1 game
1W
0D
0L
Scotch Game 3 games 3W 0D 0L
Scotch Gambit 2 games 2W 0D 0L
London Defense
1 game
1W
0D
0L
Advance Variation
1 game
1W
0D
0L
Potter Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Rapport-Jobava System 2 games 2W 0D 0L
(unspecified) 2 games 2W 0D 0L
(unspecified)
2 games
2W
0D
0L
Queen's Pawn Game 1 game 1W 0D 0L
Accelerated London System 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
1 game
0W
1D
0L
Vienna Game 1 game 1W 0D 0L
Paulsen Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Nimzo-Indian Defense 1 game 0W 0D 1L
Normal Variation 1 game 0W 0D 1L
Botvinnik System
1 game
0W
0D
1L
Vienna Gambit, with Max Lange Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Four Knights Game 1 game 0W 0D 1L
Italian Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
King's Gambit Accepted 1 game 0W 1D 0L
King's Knight's Gambit 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Petrov's Defense 1 game 1W 0D 0L
Italian Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Zukertort Opening 1 game 0W 0D 1L
Tennison Gambit 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Indian Defense 1 game 1W 0D 0L
Accelerated London System 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Center Game 1 game 0W 0D 1L
Normal Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Blunders Top 4 of 600
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 145 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.10.23 | Amsterdam Chess Open 2026 - Group A | 1.12 | 2026.10.23 Jongste, David (1042637) (2131) | 0 | 78.20% | 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 | |
| 2026.08.22 | EUCC 2026 U14 | 5.1 | 2026.08.22 Munkhbayar, Unurbayar (23778598) (2018) | 1 | 93.70% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.08.20 | EUCC 2026 U14 | 3.1 | 2026.08.20 Pehlivanova, Aleksandra (2944375) (1948) | 1 | 86.80% | 1. d4 d5 2. Bf4 Nf6 3. e3 e6 | |
| 2026.08.06 | EUCC 2026 U14 | 9.1 | 2026.08.06 Wites, Adam (41811216) (2137) | ½ | 90.00% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.08.06 | EUCC 2026 U14 | 8.1 | 2026.08.06 Mikolavicius, Julius (12846279) (2097) | 0 | 84.50% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 | |
| 2026.08.06 | EUCC 2026 U14 | 7.1 | 2026.08.06 Petroff, Vlad (1295179) (2078) | 1 | 94.30% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | |
| 2026.08.06 | EUCC 2026 U14 | 6.1 | 2026.08.06 Krstic, David (14654946) (2094) | 1 | 93.40% | 1. d4 d5 2. Nf3 Bf5 3. c4 e6 | |
| 2026.08.06 | EUCC 2026 U14 | 4.1 | 2026.08.06 Parvu, Razvan-George (1297066) (2062) | 1 | 96.90% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 | |
| 2026.08.06 | EUCC 2026 U14 | 2.1 | 2026.08.06 Hrckova, Anna (23763507) (1913) | 1 | 93.70% | 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ | |
| 2026.08.06 | EUCC 2026 U14 | 1.1 | 2026.08.06 Daniil, Christodoulos (5906598) (1792) | 1 | 95.80% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.08.01 | European Youth Team Chess Championship - Open18 | 7.20 | 2026.08.01 Turcsanyi, Vince Gergo (791784) (2348) | 1 | 95.30% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.07.22 | Round 9: Wettach, Michel - Leenen, Boyd | 9.14 | 2026.07.22 Wettach, Michel (202525) (2048) | ½ | 89.40% | 1. e4 e6 2. d4 d5 3. Nd2 c5 | |
| 2026.07.21 | Round 8: Leenen, Boyd - Vantorre, Nils | 8.12 | 2026.07.21 Vantorre, Nils (258474) (2236) | ½ | 92.00% | 1. d4 Nf6 2. Nf3 e6 3. c4 d5 | |
| 2026.07.21 | Round 7: Bekker, Stefan - Leenen, Boyd | 7.6 | 2026.07.21 Bekker, Stefan (1022229) (2345) | ½ | 98.20% | 1. Nf3 Nf6 2. c4 e6 3. g3 d5 | |
| 2026.07.20 | Round 6: Leenen, Boyd - Straat, Rody | 6.15 | 2026.07.20 Straat, Rody (1019392) (2068) | 1 | 95.00% | 1. d4 d5 2. Nf3 Nf6 3. c4 c6 | |
| 2026.07.18 | Round 3: Van der Linden, Hans - Leenen, Boyd | 3.16 | 2026.07.18 Van der Linden, Hans (1048279) (2031) | 1 | 89.50% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 | |
| 2026.07.10 | Round 4: Leenen, Boyd - Pijpers, Arthur | 4.1 | 2026.07.10 Pijpers, Arthur (1019554) (2486) | 0 | 88.30% | 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 | |
| 2026.06.21 | HSG Open 2026 A | 5.8 | 2026.06.21 Beerdsen, Thomas (1030108) (2519) | 0 | 85.70% | 1. d4 d5 2. c4 e6 3. Nc3 c6 | |
| 2026.06.20 | HSG Open 2026 A | 3.11 | 2026.06.20 Lombaers, Peter (1032852) (2343) | ½ | 96.80% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | |
| 2026.06.19 | HSG Open 2026 A | 1.4 | 2026.06.19 Bagrationi, Alexander (14104954) (2444) | ½ | 89.50% | 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 | |
| 2026.05.25 | Round 7: Leenen, Boyd - Battistelli, Fausto | 7.19 | 2026.05.25 Battistelli, Fausto (267732) (2185) | ½ | - | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2026.05.25 | Round 6: Gurevich, Mikhail - Leenen, Boyd | 6.8 | 2026.05.25 Gurevich, Mikhail (200930) (2554) | 0 | 89.10% | 1. c4 e6 2. d4 Nf6 3. Nc3 d5 | |
| 2026.05.24 | Round 4: De Block, Fabio - Leenen, Boyd | 4.16 | 2026.05.24 De Block, Fabio (226181) (2145) | ½ | 89.40% | 1. d4 Nf6 2. c4 e6 3. Nc3 d5 | |
| 2026.05.10 | Ronde 6: Westerhof, Fleur - Leenen, Boyd | 6.6 | 2026.05.10 Westerhof, Fleur (1080369) (2055) | 1 | 97.90% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.05.10 | Ronde 5: Leenen, Boyd - Thijssen, Freek | 5.6 | 2026.05.10 Thijssen, Freek (1091840) (2133) | ½ | - | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2026.05.09 | Ronde 4: Bhattacharjee, Sourav - Leenen, Boyd | 4.5 | 2026.05.09 Bhattacharjee, Sourav (1048090) (2189) | ½ | 95.80% | 1. d4 Nf6 2. c4 e6 3. Nc3 d5 | |
| 2026.05.09 | Ronde 3: Boyd Leenen - Quinones-Maletti, Julio Guillermo | 3.10 | 2026.05.09 Quinones-Maletti, Julio Guillermo (1462318) (2058) | 1 | 95.50% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| 2026.05.09 | Ronde 2: Pim Blijlevens - Boyd Leenen | 2.15 | 2026.05.09 Blijlevens, Pim (1022997) (1929) | 1 | 94.50% | 1. d4 Nf6 2. Bg5 d5 3. e3 e6 | |
| 2026.05.08 | Round 1: Boyd Leenen - Nino Messaoudi | 1.8 | 2026.05.08 Messaoudi, Nino (1099930) (1965) | 0 | 91.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2026.05.02 | Round 9: Leenen, Boyd - Van den Doel, Erik | 9.7 | 2026.05.02 Van den Doel, Erik (1003720) (2514) | ½ | 82.10% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2026.05.02 | Round 8: Van der Looij, Rik - Leenen, Boyd | 8.21 | 2026.05.02 Van der Looij, Rik (1086170) (1797) | 1 | 85.00% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.05.02 | Round 7: Leenen, Boyd - Timmer, Michel | 7.25 | 2026.05.02 Timmer, Michel (40104524) (1879) | 1 | 87.00% | 1. d4 e6 2. c4 Bb4+ 3. Bd2 a5 | |
| 2026.05.02 | Round 5: Leenen, Boyd - De Jong, Lode | 5.27 | 2026.05.02 De Jong, Lode (40101860) (1848) | 0 | 79.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2026.05.02 | Round 4: Leenen, Boyd - Lenting, Roan | 4.22 | 2026.05.02 Lenting, Roan (1085905) (1838) | 1 | 93.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2026.05.02 | Round 3: Fridman, Daniel - Leenen, Boyd | 3.1 | 2026.05.02 Fridman, Daniel (11600454) (2569) | 0 | 89.90% | 1. Nf3 Nf6 2. c4 e6 3. g3 d5 | |
| 2026.05.02 | Round 1: Leenen, Boyd - Koks, Paul | 1.2 | 2026.05.02 Koks, Paul (204374) (1686) | 1 | - | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2026.05.01 | Round 6: Gupta, Akul - Leenen, Boyd | 6.1 | 2026.05.01 Gupta, Akul (1084194) (1830) | 1 | 97.00% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 a6 | |
| 2026.04.30 | Round 9: Leenen, Boyd - Sosef, Noah | 9.6 | 2026.04.30 Sosef, Noah (40107060) (2108) | 1 | 93.90% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2026.04.29 | Round 8: Teianu, Sabin - Leenen, Boyd | 8.2 | 2026.04.29 Teianu, Sabin (1095846) (2131) | 0 | 89.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| 2026.04.29 | Round 7: Leenen, Boyd - Ozbek, Ahmet Naim | 7.6 | 2026.04.29 Ozbek, Ahmet Naim (40101975) (1869) | 1 | 95.30% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.04.29 | Round 6: Leenen, Boyd - Pathak, Raghav | 6.3 | 2026.04.29 Pathak, Raghav (1084259) (2091) | 0 | 60.60% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2026.04.27 | Round 5: Uitermark, Imre - Leenen, Boyd | 5.5 | 2026.04.27 Uitermark, Imre (40105199) (1957) | 1 | 89.40% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.04.27 | Round 4: Leenen, Boyd - Zhou, Yanyang | 4.8 | 2026.04.27 Zhou, Yanyang (40109739) (1860) | 1 | 94.00% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2026.04.27 | Round 3: Thijssen, Freek - Leenen, Boyd | 3.4 | 2026.04.27 Thijssen, Freek (1091840) (2159) | 0 | 85.50% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.04.12 | Round 2: Leenen, Boyd - Botter, Simon | 2.1 | 2026.04.12 Botter, Simon (40107698) (1988) | ½ | 97.40% | 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 | |
| 2026.04.12 | Round 1: Cubuk, Armin - Leenen, Boyd | 1.1 | 2026.04.12 Cubuk, Armin (40105423) (1881) | 1 | 98.60% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | |
| 2025.11.02 | Round 5: Zakin, Ilay - Leenen, Boyd | 5.10 | 2025.11.02 Zakin, Ilay (2848279) (2311) | ½ | 87.30% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.11.01 | Round 4: Leenen, Boyd - Radzimski, Antoni | 4.4 | 2025.11.01 Radzimski, Antoni (21052476) (2336) | 0 | 87.50% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2025.10.31 | Round 3: Borne, Felix - Leenen, Boyd | 3.6 | 2025.10.31 Borne, Felix (551039915) (2315) | 1 | 98.50% | 1. Nf3 Nf6 2. c4 e6 3. g3 d5 | |
| 2025.10.30 | Round 2: Leenen, Boyd - Besou, Hussain | 2.2 | 2025.10.30 Besou, Hussain (16269950) (2376) | 1 | 97.80% | 1. d4 Nf6 2. c4 g6 3. Nc3 d5 | |
| 2025.07.22 | Round 8: Klinova, Masha - Leenen, Boyd | 8.10 | 2025.07.22 Klinova, Masha (2802015) (2242) | 0 | 90.90% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.07.21 | Round 6: Maerevoet, Sim - Leenen, Boyd | 6.5 | 2025.07.21 Maerevoet, Sim (241725) (2454) | 0 | 89.50% | 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 | |
| 2025.07.21 | Round 5: Leenen, Boyd - Knuedel, Torben | 5.1 | 2025.07.21 Knuedel, Torben (16208820) (2364) | ½ | 98.60% | 1. d4 Nf6 2. Nf3 d5 3. c4 e6 | |
| 2025.07.20 | Round 4: De Waele, Warre - Leenen, Boyd | 4.4 | 2025.07.20 De Waele, Warre (241156) (2344) | 1 | 91.70% | 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 | |
| 2025.05.30 | Round 1: De Winter, Arthur - Leenen, Boyd | 1.4 | 2025.05.30 De Winter, Arthur (1069020) (2462) | 0 | - | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2025.05.18 | Round 6: Leenen, Boyd - Vennix, Tom | 6.23 | 2025.05.18 Vennix, Tom (40106470) (1971) | ½ | 97.70% | 1. d4 d5 2. c4 dxc4 3. Nc3 e5 | |
| 2025.05.18 | Round 5: Hubers, Daan - Leenen, Boyd | 5.27 | 2025.05.18 Hubers, Daan (1054589) (1902) | 1 | 97.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2025.05.17 | Round 4: Winkels, Marcel - Leenen, Boyd | 4.22 | 2025.05.17 Winkels, Marcel (1003887) (1918) | 0 | 69.70% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.05.17 | Round 3: Leenen, Boyd - Madularea, David | 3.14 | 2025.05.17 Madularea, David (1070215) (2225) | 0 | 90.10% | 1. d4 Nf6 2. c4 e6 3. Nf3 Ne4 | |
| 2025.05.17 | Round 2: Feng, Elysia - Leenen, Boyd | 2.26 | 2025.05.17 Feng, Elysia (1074334) (1908) | 1 | 93.30% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.05.16 | Round 1: Leenen, Boyd - Beerdsen, Thomas | 1.3 | 2025.05.16 Beerdsen, Thomas (1030108) (2535) | 0 | 89.20% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 | |
| 2025.05.02 | Round 14: Leenen, Boyd - Thijssen, Freek | 14.1 | 2025.05.02 Thijssen, Freek (1091840) (1985) | 0 | 80.40% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2025.05.02 | Round 13: Leenen, Boyd - Thijssen, Freek | 13.1 | 2025.05.02 Thijssen, Freek (1091840) (1985) | ½ | 90.50% | 1. Nf3 d5 2. e3 Nf6 3. b3 e6 | |
| 2025.05.02 | Round 12: Thijssen, Freek - Leenen, Boyd | 12.1 | 2025.05.02 Thijssen, Freek (1091840) (1985) | ½ | 90.50% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.05.02 | Round 11: Leenen, Boyd - Thijssen, Freek | 11.1 | 2025.05.02 Thijssen, Freek (1091840) (1985) | 1 | 93.30% | 1. Nf3 Nf6 2. b3 d5 3. Bb2 e6 | |
| 2025.05.02 | Round 10: Thijssen, Freek - Leenen, Boyd | 10.1 | 2025.05.02 Thijssen, Freek (1091840) (1985) | 0 | 81.70% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.05.02 | Round 9: Leenen, Boyd - Teianu, Sabin | 9.2 | 2025.05.02 Teianu, Sabin (1095846) (2024) | 1 | 90.30% | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2025.05.01 | Round 8: Aravindhan, Achyuth - Leenen, Boyd | 8.3 | 2025.05.01 Aravindhan, Achyuth (1084216) (2098) | 1 | 94.10% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.04.30 | Round 7: Leenen, Boyd - Etienne, Ghilon | 7.4 | 2025.04.30 Etienne, Ghilon (1084267) (1947) | ½ | 96.60% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.04.30 | Round 6: Georgopoulos-Karbouniaris, Mylo - Leenen, Boyd | 6.5 | 2025.04.30 Georgopoulos-Karbouniaris, Mylo (1095897) (1703) | 1 | 93.90% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.04.29 | Round 5: Leenen, Boyd - Dinanath, Hrdya | 5.5 | 2025.04.29 Dinanath, Hrdya (1087991) (2085) | ½ | 91.60% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.04.28 | Round 4: Leenen, Boyd - Thijssen, Freek | 4.3 | 2025.04.28 Thijssen, Freek (1091840) (1948) | ½ | 96.60% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2025.04.28 | Round 3: Katpatal, Akshaj - Leenen, Boyd | 3.4 | 2025.04.28 Katpatal, Akshaj (1072595) (2002) | ½ | 87.10% | 1. c4 c6 2. Nf3 d5 3. cxd5 cxd5 | |
| 2025.04.27 | Round 2: Leenen, Boyd - Roebers, Bregje | 2.6 | 2025.04.27 Roebers, Bregje (1085174) (1855) | ½ | 93.80% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2025.04.26 | Round 1: Yantur, Arda - Leenen, Boyd | 1.8 | 2025.04.26 Yantur, Arda (40102041) (1745) | 1 | 93.00% | 1. e4 e5 2. Nc3 Nc6 3. g3 Nf6 | |
| 2024.08.26 | EYCC 2024 - O12 | 5.16 | 2024.08.26 Nezhyvenko, Mykhailo (34139885) (2107) | ½ | 84.80% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2024.08.25 | EYCC 2024 - O12 | 4.14 | 2024.08.25 Nguyen, Khoi (272540) (2108) | ½ | 94.40% | 1. d4 Nf6 2. c4 e6 3. g3 d5 | |
| 2024.08.23 | EYCC 2024 - O12 | 2.5 | 2024.08.23 Ambartsumian, Tyhran (34161112) (2156) | 0 | 85.10% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 18.5 | 2024.08.20 Velychko, Semen (34125140) (1876) | 1 | 89.00% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 a6 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 17.5 | 2024.08.20 Velychko, Semen (34125140) (1876) | 1 | 91.80% | 1. c4 e5 2. Nc3 Nf6 3. g3 c6 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 16.6 | 2024.08.20 Matiievskyi, Rostyslav (34159320) (1834) | 1 | 93.70% | 1. c4 e5 2. Nc3 Nf6 3. g3 c6 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 15.6 | 2024.08.20 Matiievskyi, Rostyslav (34159320) (1834) | 0 | 82.90% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 14.7 | 2024.08.20 MOLCHANOV, Roman (1749) | ½ | 98.10% | 1. e4 e5 2. d4 exd4 3. Nf3 Nc6 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 13.7 | 2024.08.20 MOLCHANOV, Roman (1749) | 1 | 77.60% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 12.10 | 2024.08.20 Hallmundarson, Birkir (2319446) (1795) | 1 | 86.50% | 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 11.10 | 2024.08.20 Hallmundarson, Birkir (2319446) (1795) | ½ | 74.80% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 10.13 | 2024.08.20 Krstic, David (14654946) (1841) | ½ | 82.00% | 1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 9.13 | 2024.08.20 Krstic, David (14654946) (1841) | 1 | 91.90% | 1. e4 e5 2. Nc3 Nc6 3. f4 d6 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 8.10 | 2024.08.20 Sakharchuk, Aliaksandr (13527061) (1840) | 1 | 88.90% | 1. d4 Nf6 2. Bg5 c5 3. Bxf6 exf6 | |
| 2024.08.20 | EYCC 2024 Blitz O12 | 7.10 | 2024.08.20 Sakharchuk, Aliaksandr (13527061) (1840) | 0 | 88.90% | 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 | |
| 2024.08.19 | EYCC 2024 Blitz O12 | 6.6 | 2024.08.19 Pavlyk, Maksym (34160345) (1920) | ½ | 82.80% | 1. e4 e5 2. f4 exf4 3. Nf3 g5 | |
| 2024.08.19 | EYCC 2024 Blitz O12 | 5.6 | 2024.08.19 Pavlyk, Maksym (34160345) (1920) | 0 | 85.10% | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 | |
| 2024.08.19 | EYCC 2024 Blitz O12 | 4.16 | 2024.08.19 Bilochenko, Matvii (41834062) (1827) | 1 | 94.90% | 1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 | |
| 2024.08.19 | EYCC 2024 Blitz O12 | 3.16 | 2024.08.19 Bilochenko, Matvii (41834062) (1827) | 1 | 68.40% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2024.08.19 | EYCC 2024 Blitz O12 | 2.16 | 2024.08.19 Ivashchenko, Yurii (34163735) (1654) | 1 | 87.50% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2024.08.19 | EYCC 2024 Blitz O12 | 1.16 | 2024.08.19 Ivashchenko, Yurii (34163735) (1654) | ½ | 83.90% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2024.08.18 | EYCC 2024 Rapid O12 | 8.12 | 2024.08.18 Sniedziewski, Emil (21082332) (1884) | 0 | 85.90% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2024.08.18 | EYCC 2024 Rapid O12 | 7.9 | 2024.08.18 Tretiak, Igor (34154612) (1832) | 0 | 90.30% | 1. d4 d5 2. c4 dxc4 3. e4 e5 | |
| 2024.08.18 | EYCC 2024 Rapid O12 | 6.11 | 2024.08.18 Toledo, Hillel (268682) (1773) | 1 | 94.60% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | |
| 2024.08.17 | EYCC 2024 Rapid O12 | 5.8 | 2024.08.17 Pavlyk, Maksym (34160345) (1905) | 0 | 62.90% | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 | |
| 2024.08.17 | EYCC 2024 Rapid O12 | 4.5 | 2024.08.17 Molchanov, Roman (34131086) (1841) | ½ | 83.90% | 1. e4 e5 2. d4 exd4 3. Nf3 Nc6 | |
| 2024.08.17 | EYCC 2024 Rapid O12 | 3.2 | 2024.08.17 Hanache, Kai (490105) (2136) | ½ | 89.50% | 1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 | |
| 2024.08.17 | EYCC 2024 Rapid O12 | 2.10 | 2024.08.17 Bilochenko, Matvii (41834062) (1875) | 1 | 94.60% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2024.08.17 | EYCC 2024 Rapid O12 | 1.11 | 2024.08.17 Nieminen, Oliver (518280) (1737) | 1 | 92.70% | 1. d4 g6 2. c4 Bg7 3. Nc3 d6 | |
| 2024.06.20 | Round 4: Matthieu 2012: Guillaumond - Leenen, Boyd | 2024.06.20 Matthieu 2012: Guillaumond | 1 | 59.30% | 1. e4 e5 2. Bc4 Nf6 3. Nf3 Bc5 | ||
| 2024.06.16 | Round 6: Thao 2012: Luong - Leenen, Boyd | 2024.06.16 Thao 2012: Luong | 0 | 55.10% | 1. e4 d5 2. Nf3 dxe4 3. Ng1 Nf6 | ||
| 2024.06.16 | Round 2: Kshirsagar, Parth - Leenen, Boyd | 2024.06.16 Kshirsagar, Parth (1084020) (1646) | 1 | 89.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | ||
| 2024.06.16 | Round 1: Leenen, Boyd - Pranay Kumar Sreepadi | 2024.06.16 Pranay Kumar Sreepadi | 1 | 99.10% | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 | ||
| 2024.06.15 | Round 9: Leenen, Boyd - Grooten, Herman | 2024.06.15 Grooten, Herman (1000330) (2243) | 1 | 91.20% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | ||
| 2024.06.15 | Round 8: Panjer, Sidney - Leenen, Boyd | 2024.06.15 Panjer, Sidney (16207041) (2157) | 1 | 90.10% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | ||
| 2024.06.15 | Round 7: Leenen, Boyd - Katpatal, Akshaj | 2024.06.15 Katpatal, Akshaj (1072595) (1734) | 1 | 93.80% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | ||
| 2024.06.15 | Round 6: Van Batenburg, Mees - Leenen, Boyd | 2024.06.15 Van Batenburg, Mees (1078259) | 0 | 89.70% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | ||
| 2024.06.15 | Round 5: Bas Duijmelings - Leenen, Boyd | 2024.06.15 Bas Duijmelings | 1 | 88.20% | 1. d4 Nf6 2. Bf4 d5 3. e3 e6 | ||
| 2024.06.15 | Round 4: Leenen, Boyd - Van Roon, Sjoerd | 2024.06.15 Van Roon, Sjoerd (1051075) (2202) | ½ | 87.60% | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 | ||
| 2024.06.15 | Round 3: Leenen, Boyd - Cakmak, Metehan Tugra | 2024.06.15 Cakmak, Metehan Tugra (44583885) (1691) | 1 | 89.00% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | ||
| 2024.06.15 | Round 2: Rutte, Edwin - Leenen, Boyd | 2024.06.15 Rutte, Edwin (1055348) | ½ | 87.30% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | ||
| 2024.06.15 | Round 1: Leenen, Boyd - Ruzaykyn, Dennis | 2024.06.15 Ruzaykyn, Dennis (40101649) (1492) | 1 | 86.20% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | ||
| 2024.06.01 | WLC Tournament 2024 A | 4.16 | 2024.06.01 Bhawsar, Ashwath (1096630) (1775) | ½ | 97.00% | 1. e4 e6 2. d4 d5 3. exd5 exd5 | |
| 2024.06.01 | WLC Tournament 2024 A | 3.13 | 2024.06.01 Verhoeven, Robin (1054775) (2026) | 0 | 80.00% | 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 | |
| 2024.05.03 | Round 9: Leenen, Boyd - Ngangbam, Chingthang | 2024.05.03 Ngangbam, Chingthang (1086510) (1713) | 1 | 86.40% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| 2024.05.02 | Round 8: Zecha, Oscar - Leenen, Boyd | 2024.05.02 Zecha, Oscar (1073826) (1996) | 0 | 85.80% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2024.05.01 | Round 7: Leenen, Boyd - Frederiks, Jesse | 2024.05.01 Frederiks, Jesse (1095790) (1718) | 1 | 97.00% | 1. Nf3 Nf6 2. e3 e6 3. b3 d5 | ||
| 2024.05.01 | Round 6: Leenen, Boyd - Lalkota, Sai Pranav Tejas | 2024.05.01 Lalkota, Sai Pranav Tejas (1087690) (1775) | ½ | 92.90% | 1. d4 Nf6 2. c4 c5 3. d5 b5 | ||
| 2024.04.30 | Round 5: De Jong, Lode - Leenen, Boyd | 2024.04.30 De Jong, Lode (40101860) (1587) | 0 | 89.80% | 1. d4 Nf6 2. c4 e6 3. g3 d5 | ||
| 2024.04.29 | Round 4: Leenen, Boyd - Tetova, Amir | 2024.04.29 Tetova, Amir (1095838) (1767) | ½ | 92.50% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | ||
| 2024.04.29 | Round 3: Ritzerveld, Noah - Leenen, Boyd | 2024.04.29 Ritzerveld, Noah (1085760) (2103) | 0 | 91.00% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | ||
| 2024.04.28 | Round 2: Leenen, Boyd - Aravindhan, Achyuth | 2024.04.28 Aravindhan, Achyuth (1084216) (2071) | ½ | 93.90% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | ||
| 2024.04.27 | Round 1: Van Haaften, Jelle - Leenen, Boyd | 2024.04.27 Van Haaften, Jelle (1096281) (1655) | 1 | 87.50% | 1. e4 e5 2. Bc4 Nf6 3. d4 Nc6 | ||
| Round 9: Van Harten, Wout - Leenen, Boyd | 9.2 | Van Harten, Wout (40103382) (1780) | 0 | 84.00% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | ||
| Round 8: Breider, Jayden - Leenen, Boyd | 8.4 | Breider, Jayden (1082892) (1688) | 1 | 89.90% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | ||
| Round 7: Leenen, Boyd - Deij, Casper | 7.6 | Deij, Casper (1085816) (1682) | 1 | - | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 | ||
| Round 6: Vogels, Mathijs - Leenen, Boyd | 6.4 | Vogels, Mathijs (1085824) (1711) | 0 | - | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | ||
| Round 5: Leenen, Boyd - Koppenens, Oscar | 5.3 | Koppenens, Oscar (1087940) (1892) | 0 | - | 1. d4 Nf6 2. Nf3 e6 3. c4 d5 | ||
| Round 4: Van Haaften, Jelle - Leenen, Boyd | 4.3 | Van Haaften, Jelle (1096281) (1770) | 1 | - | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| Round 3: Leenen, Boyd - Van den Berg, Leon | 3.5 | Van den Berg, Leon (40111342) (1790) | 1 | - | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | ||
| Round 2: Leenen, Boyd - Frederiks, Jesse | 2.1 | Frederiks, Jesse (1095790) (1763) | 0 | - | 1. c4 b6 2. d4 Bb7 3. Nc3 Nf6 | ||
| 2023.08.18 | FIDE U16 Olympiad_boards_81-124 | 9 | 2023.08.18 Natrada Kaewwattha | 1 | 95.70% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2023.08.17 | FIDE U16 Olympiad_boards_1-80 | 8 | 2023.08.17 Fleur Westerhof | 0 | 79.20% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 | |
| 2023.08.17 | FIDE U16 Olympiad_boards_81-124 | 7 | 2023.08.17 Wen Xi Fan | ½ | 95.20% | 1. e4 e5 2. c4 Nf6 3. Nc3 Bb4 | |
| 2023.08.16 | FIDE U16 Olympiad_boards_1-80 | 6 | 2023.08.16 Charis Peglau | ½ | 92.70% | 1. Nf3 Nf6 2. e3 d5 3. b3 e6 | |
| 2023.08.15 | FIDE U16 Olympiad_boards_81-124 | 5 | 2023.08.15 Yushin Andrea Wang | 1 | 88.90% | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 | |
| 2023.08.15 | FIDE U16 Olympiad_boards_81-124 | 4 | 2023.08.15 Misaki Yamada | 1 | 97.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2023.08.14 | FIDE U16 Olympiad_boards_81-124 | 3 | 2023.08.14 Sophie Yi-Hsuan Tsai | 1 | 73.90% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| 2023.08.14 | FIDE U16 Olympiad_boards_1-80 | 2 | 2023.08.14 Christina Bouzana | 1 | 26.10% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2023.08.13 | FIDE U16 Olympiad_boards_1-80 | 1 | 2023.08.13 Miaoyi Lu | 0 | 88.00% | 1. d4 Nf6 2. Nf3 e6 3. c4 d5 |