Player profile

Yoon, Jacob D

Standard: 2239 Rapid: 2099 Blitz: 2020 (last updated 2026-11-02)

FIDE ID: 446076 (view FIDE profile)

Federation: ENG Sex: M Birth Year: 2006 Age: 20

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

Games: 185 Wins: 89 (48%) Draws: 40 (22%) Losses: 56 (30%)

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Dossier

175 of 185 games analyzed.

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Openings

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As White 78 games 43W 15D 20L

Queen's Gambit Declined 10 games 5W 2D 3L

Harrwitz Attack 6 games 2W 1D 3L

(unspecified) 3 games 1W 0D 2L

Fianchetto Defense 2 games 0W 1D 1L

Main Line 1 game 1W 0D 0L

Ragozin Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Three Knights Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Barmen Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Vienna Variation 1 game 1W 0D 0L

Quiet Variation 1 game 1W 0D 0L

Sicilian Defense 7 games 4W 2D 1L

Kalashnikov Variation 3 games 2W 1D 0L

(unspecified) 3 games 2W 1D 0L

Lasker-Pelikan Variation 1 game 1W 0D 0L

Sveshnikov Variation 1 game 1W 0D 0L

Grand Prix Attack 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Richter-Rauzer Variation 1 game 0W 0D 1L

Neo-Modern Variation 1 game 0W 0D 1L

Czerniak Attack 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

East Indian Defense 6 games 5W 0D 1L

(unspecified) 6 games 5W 0D 1L

Caro-Kann Defense 5 games 2W 1D 2L

Classical Variation 2 games 1W 0D 1L

Main Line 1 game 0W 0D 1L

Seirawan Variation 1 game 1W 0D 0L

Tartakower Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Advance Variation 1 game 1W 0D 0L

Botvinnik-Carls Defense 1 game 1W 0D 0L

Karpov Variation 1 game 0W 1D 0L

Modern Variation 1 game 0W 1D 0L

Indian Defense 3 games 0W 1D 2L

(unspecified) 1 game 0W 0D 1L

Wade-Tartakower Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Devin Gambit 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Queen's Gambit Accepted 3 games 3W 0D 0L

Old Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Classical Defense 1 game 1W 0D 0L

Alekhine System 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Zukertort Opening 3 games 2W 0D 1L

Sicilian Invitation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

(unspecified) 1 game 0W 0D 1L

Dutch Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

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

Normal Variation 2 games 2W 0D 0L

(unspecified) 2 games 2W 0D 0L

Accelerated Meran Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Dutch Defense 3 games 2W 0D 1L

Fianchetto Attack 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Rubinstein Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

(unspecified) 1 game 0W 0D 1L

English Opening 3 games 1W 2D 0L

Agincourt Defense 2 games 1W 1D 0L

Wimpy System 1 game 1W 0D 0L

(unspecified) 1 game 0W 1D 0L

Symmetrical Variation 1 game 0W 1D 0L

Ultra-Symmetrical Variation 1 game 0W 1D 0L

Rapport-Jobava System 3 games 1W 0D 2L

(unspecified) 3 games 1W 0D 2L

Italian Game 2 games 1W 1D 0L

Classical Variation 1 game 1W 0D 0L

Giuoco Pianissimo 1 game 1W 0D 0L

Two Knights Defense 1 game 0W 1D 0L

Modern Bishop's Opening 1 game 0W 1D 0L

Petrov's Defense 2 games 1W 1D 0L

Modern Attack 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Damiano Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

French Defense 2 games 1W 1D 0L

Tarrasch Variation 1 game 1W 0D 0L

Closed Variation 1 game 1W 0D 0L

Wing Gambit 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Slav Defense 2 games 2W 0D 0L

(unspecified) 2 games 2W 0D 0L

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

Classical Variation 2 games 0W 2D 0L

Traditional Variation 1 game 0W 1D 0L

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

Bogo-Indian Defense 2 games 0W 1D 1L

Nimzowitsch Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Wade-Smyslov Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

King's Indian Defense 2 games 0W 0D 2L

Semi-Averbakh System 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Orthodox Variation 1 game 0W 0D 1L

Positional Defense 1 game 0W 0D 1L

Pirc Defense 2 games 2W 0D 0L

(unspecified) 2 games 2W 0D 0L

Nimzo-Indian Defense 2 games 1W 0D 1L

St. Petersburg Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Rubinstein System 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Ware Opening 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Réti Opening 1 game 1W 0D 0L

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

Capablanca Variation 1 game 1W 0D 0L

Scandinavian Defense 1 game 0W 0D 1L

Gubinsky-Melts Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Philidor Defense 1 game 1W 0D 0L

Lion Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Ruy Lopez 1 game 0W 1D 0L

Open Berlin Defense 1 game 0W 1D 0L

l'Hermet Variation 1 game 0W 1D 0L

Scotch Game 1 game 1W 0D 0L

Potter Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

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

Colle System 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

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

Classical Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Modern Defense 1 game 1W 0D 0L

Standard Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Grünfeld Defense 1 game 1W 0D 0L

Russian Variation 1 game 1W 0D 0L

Byrne Variation 1 game 1W 0D 0L

English Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

As Black 81 games 36W 17D 28L

Caro-Kann Defense 20 games 10W 4D 6L

Advance Variation 9 games 3W 2D 4L

Botvinnik-Carls Defense 7 games 1W 2D 4L

(unspecified) 2 games 2W 0D 0L

Euwe Attack 2 games 1W 1D 0L

(unspecified) 2 games 1W 1D 0L

Accelerated Panov Attack 2 games 1W 1D 0L

Modern Variation 2 games 1W 1D 0L

Exchange Variation 2 games 1W 0D 1L

(unspecified) 2 games 1W 0D 1L

Two Knights Attack 2 games 2W 0D 0L

Mindeno Variation, Exchange Line 2 games 2W 0D 0L

Panov Attack 1 game 1W 0D 0L

Fianchetto Defense 1 game 1W 0D 0L

Maróczy Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Tartakower Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Sicilian Defense 17 games 9W 4D 4L

Moscow Variation 5 games 2W 2D 1L

Main Line 5 games 2W 2D 1L

Classical Variation 3 games 2W 0D 1L

Anti-Sozin Variation 2 games 2W 0D 0L

Fianchetto Variation 1 game 0W 0D 1L

Closed 2 games 1W 0D 1L

Traditional 1 game 1W 0D 0L

Chameleon Variation 1 game 0W 0D 1L

Richter-Rauzer Variation 2 games 1W 0D 1L

Neo-Modern Variation, Nyezhmetdinov Attack 1 game 0W 0D 1L

Neo-Modern Variation, Early Deviations 1 game 1W 0D 0L

Bowdler Attack 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Chekhover Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Dragon Variation 1 game 1W 0D 0L

Classical Variation 1 game 1W 0D 0L

Grand Prix Attack 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Kan Variation 1 game 1W 0D 0L

Maróczy Bind, Réti Variation 1 game 1W 0D 0L

French Defense 6 games 1W 4D 1L

Steinitz Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Paulsen Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Schlechter Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Tarrasch Variation 1 game 0W 1D 0L

Morozevich Variation 1 game 0W 1D 0L

Exchange Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Advance Variation 1 game 1W 0D 0L

Milner-Barry Gambit, Hector Variation 1 game 1W 0D 0L

Queen's Indian Defense 4 games 2W 0D 2L

Fianchetto Variation 2 games 0W 0D 2L

Check Variation, Intermezzo Line 2 games 0W 0D 2L

Kasparov-Petrosian Variation 1 game 1W 0D 0L

Main Line 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

English Opening 4 games 1W 0D 3L

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

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

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

Agincourt Defense 1 game 1W 0D 0L

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

Jaenisch Gambit 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Queen's Gambit Declined 4 games 3W 0D 1L

Chigorin Defense 2 games 1W 0D 1L

Modern Gambit 1 game 1W 0D 0L

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

Ragozin Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Queen's Pawn Game 3 games 3W 0D 0L

Symmetrical Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Stonewall Attack 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Modern Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

King's Indian Attack 3 games 0W 0D 3L

Keres Variation 3 games 0W 0D 3L

(unspecified) 3 games 0W 0D 3L

Modern Defense 3 games 2W 0D 1L

Standard Defense 2 games 1W 0D 1L

(unspecified) 2 games 1W 0D 1L

(unspecified) 1 game 1W 0D 0L

Horwitz Defense 2 games 1W 1D 0L

(unspecified) 2 games 1W 1D 0L

Nimzo-Indian Defense 2 games 0W 1D 1L

Normal Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Reshevsky Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Benoni Defense 2 games 0W 0D 2L

Fianchetto Variation 2 games 0W 0D 2L

Hastings Defense, Main Line 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

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

(unspecified) 1 game 1W 0D 0L

Ware Opening 1 game 0W 0D 1L

Symmetric Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Van Geet Opening 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

English Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Polish Opening 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Trompowsky Attack 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Benko Gambit Declined 1 game 1W 0D 0L

Main Line 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Zukertort Opening 1 game 0W 1D 0L

Kingside Fianchetto 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Slav Defense 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Réti Opening 1 game 0W 0D 1L

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

Gurevich System 1 game 0W 0D 1L

Pirc Defense 1 game 0W 1D 0L

Austrian Attack 1 game 0W 1D 0L

Kurajica Variation 1 game 0W 1D 0L

Blunders Top 4 of 836

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

????.??.?? · 35. Qc3 (−53.7% win chance) 1-0

Kumaresan, Darshan

Yoon, Jacob D

Engine View game

2026.04.19 · 31. Rd3 (−47.5% win chance) 0-1

Kudaibergen, Nurlykhan

Yoon, Jacob D

Engine View game

2026.03.14 · 46. Rc4 (−47.5% win chance) 0-1

Salman, Haytham

Yoon, Jacob D

Engine View game

2025.09.20 · 26... Ne5 (−46.9% win chance) 1-0

Yoon, Jacob D

Conquest, Stuart C

Engine View game

View blunders & mistakes

Games Showing all 185 games

Date	Event	Round	Opponent	Result	Accuracy %	First moves
2026.10.11	Round 2: Hng, Mei-Xian Eunice - Yoon, Jacob D	2.16	2026.10.11 Hng, Mei-Xian Eunice (5806585) (2085)	1	97.10%	1. e4 c6 2. d4 d5 3. e5 Bf5
2026.10.10	Round 1: Yoon, Jacob D - Weersing, Abigail Riis	1.30	2026.10.10 Weersing, Abigail Riis (460036) (2061)	0	83.40%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2026.04.19	4th Sussex University Weekend Congress - Blitz	9.3	2026.04.19 Brewer, Callum D (435309) (2037)	0	84.90%	1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7
2026.04.19	4th Sussex University Weekend Congress - Blitz	8.3	2026.04.19 Kendall, Arthur (343410960) (1854)	1	91.80%	1. d4 e6 2. Nf3 b6 3. e3 Bb7
2026.04.19	4th Sussex University Weekend Congress - Blitz	7.2	2026.04.19 Kudaibergen, Nurlykhan (13724665) (2130)	0	74.50%	1. e4 c6 2. d4 d5 3. Nc3 dxe4
2026.04.19	4th Sussex University Weekend Congress - Blitz	6.3	2026.04.19 Eldridge, Albert (343438857) (1631)	1	91.50%	1. d4 e6 2. c4 b6 3. a3 Bb7
2026.04.19	4th Sussex University Weekend Congress - Blitz	5.1	2026.04.19 Korshunov, Sergey And. (34274715) (2372)	0	-	1. d4 Nf6 2. Nd2 d5 3. Ngf3 g6
2026.04.19	4th Sussex University Weekend Congress - Blitz	4.3	2026.04.19 Pack, Edgar (343456642) (1888)	1	-	1. d4 d5 2. c4 dxc4 3. e3 e5
2026.04.19	4th Sussex University Weekend Congress - Blitz	3.4	2026.04.19 Maharnab Choudhury (25705083) (1648)	1	93.40%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.04.19	4th Sussex University Weekend Congress - Blitz	2.4	2026.04.19 Freeman, Luke (343411959) (1791)	1	95.30%	1. Nf3 c5 2. b3 Nf6 3. Bb2 Nc6
2026.04.19	4th Sussex University Weekend Congress - Blitz	1.4	2026.04.19 Cojocaru, Cosmin Daniel (343460666) (1585)	1	-	1. e4 c5 2. Bc4 e6 3. d4 cxd4
2026.04.18	4th Sussex University Weekend Congress - Congress Under 2400	3.2	2026.04.18 Kudaibergen, Nurlykhan (13724665) (2188)	1	94.90%	1. e4 c6 2. d4 d5 3. e5 Bf5
2026.04.18	4th Sussex University Weekend Congress - Congress Under 2400	2.3	2026.04.18 Bevis, Noah (343434630) (2072)	1	98.60%	1. e4 c5 2. Nf3 Nc6 3. d4 cxd4
2026.04.18	4th Sussex University Weekend Congress - Congress Under 2400	1.3	2026.04.18 Norinkeviciute, Rasa (12801925) (1921)	1	94.00%	1. c4 Nf6 2. g3 e6 3. Bg2 d5
2026.04.12	4th Sussex University Weekend Congress - Congress Under 2400	5.1	2026.04.12 Bezuidenhout, Roland (14304562) (2290)	½	94.30%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.04.12	4th Sussex University Weekend Congress - Congress Under 2400	4.1	2026.04.12 Giahos, Gerasimos (4221230) (1951)	1	97.60%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6
2026.04.11	Golders Green FIDE Rapidplay - 10th April 2026 - Open	6.5	2026.04.11 Kwiatkowski, Feliks J (401803) (2228)	1	97.80%	1. e4 c5 2. Nf3 Nc6 3. d4 cxd4
2026.04.11	Golders Green FIDE Rapidplay - 10th April 2026 - Open	4.3	2026.04.11 Malinovskii, Ilia (24146374) (2017)	0	88.10%	1. d4 Nf6 2. Nf3 d6 3. Nbd2 Bf5
2026.04.11	Golders Green FIDE Rapidplay - 10th April 2026 - Open	2.4	2026.04.11 Roberts, Harrison (343477046) (1958)	1	98.90%	1. d4 d5 2. c4 c6 3. Nc3 Nf6
2026.04.10	Golders Green FIDE Rapidplay - 10th April 2026 - Open	3.1	2026.04.10 Balakrishnan, Praveen (2064871) (2385)	0	84.60%	1. Nf3 Nf6 2. c4 e6 3. Nc3 c5
2026.03.22	Round 8: Dicen, Elis Denele - Yoon, Jacob D	8.8	2026.03.22 Dicen, Elis Denele (462560) (2146)	1	90.90%	1. d4 d5 2. Nf3 Nf6 3. c4 e6
2026.03.21	Round 7: Yoon, Jacob D - Gayson, Peter M	7.8	2026.03.21 Gayson, Peter M (401838) (2055)	1	97.30%	1. d4 f5 2. g3 g6 3. Bg2 Bg7
2026.03.15	Round 11: Nawalaniec, Adam - Yoon, Jacob D	11.19	2026.03.15 Nawalaniec, Adam (21023786) (2176)	1	90.60%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.03.15	Round 10: Yoon, Jacob D - Bakhtiyarov, Kamronbek	10.34	2026.03.15 Bakhtiyarov, Kamronbek (14223724) (1717)	1	92.50%	1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4
2026.03.15	Round 9: Pearson, Charlie - Yoon, Jacob D	9.42	2026.03.15 Pearson, Charlie (343440479) (1732)	1	93.20%	1. b3 a5 2. Bb2 a4 3. d4 e6
2026.03.15	Round 8: Yoon, Jacob D - Bramson, Mike	8.51	2026.03.15 Bramson, Mike (423947) (1842)	1	94.90%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2026.03.15	Round 7: Beswick, Andrew - Yoon, Jacob D	7.71	2026.03.15 Beswick, Andrew (455679) (1694)	1	82.20%	1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4
2026.03.14	Round 6: Yoon, Jacob D - Salman, Haytham	6.53	2026.03.14 Salman, Haytham (343456600) (1896)	0	82.50%	1. a4 e6 2. g3 d5 3. Bg2 Nf6
2026.03.14	Round 5: Badacsonyi, Stanley - Yoon, Jacob D	5.30	2026.03.14 Badacsonyi, Stanley (486973) (2358)	0	90.40%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2026.03.14	Round 4: Yoon, Jacob D - Bates, Richard A	4.13	2026.03.14 Bates, Richard A (403555) (2390)	0	87.70%	1. d4 Nf6 2. Nf3 g6 3. Nbd2 c5
2026.03.14	Round 3: Hunt, Harriet V - Yoon, Jacob D	3.18	2026.03.14 Hunt, Harriet V (403512) (2275)	½	91.20%	1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7
2026.03.14	Round 2: Yoon, Jacob D - Cancedda-Dupuis, Livio	2.6	2026.03.14 Cancedda-Dupuis, Livio (499447) (2374)	1	85.90%	1. d4 Nf6 2. Nf3 e6 3. c4 d5
2026.03.14	Round 1: Thompson, Andrew - Yoon, Jacob D	1.63	2026.03.14 Thompson, Andrew (436984) (1612)	1	98.80%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.02.22	Round 9: Yoon, Jacob D - Tran, David	9.2	2026.02.22 Tran, David (790630) (2224)	½	94.00%	1. f4 c5 2. e4 Nc6 3. Nc3 g6
2026.02.22	Round 8: Verma, Aditya - Yoon, Jacob D	8.2	2026.02.22 Verma, Aditya (426202) (2002)	0	80.20%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.02.22	Round 7: Yoon, Jacob D - Pelling, Kyle	7.2	2026.02.22 Pelling, Kyle (462942) (1832)	1	97.10%	1. e4 c6 2. d4 d5 3. Nc3 dxe4
2026.02.22	Round 6: Leslie, Alex - Yoon, Jacob D	6.2	2026.02.22 Leslie, Alex (452505) (1933)	0	88.60%	1. d4 Nf6 2. c4 e6 3. Nf3 c5
2026.02.21	Round 9: Badacsonyi, Frankie - Yoon, Jacob D	9.6	2026.02.21 Badacsonyi, Frankie (460400) (2160)	0	83.90%	1. a3 a6 2. a4 a5 3. e4 e5
2026.02.21	Round 8: Yoon, Jacob D - Saunders, Aron	8.3	2026.02.21 Saunders, Aron (469343) (2053)	0	83.90%	1. e4 c6 2. d4 d5 3. Nc3 dxe4
2026.02.21	Round 5: Kovalskyi, Roman - Yoon, Jacob D	5.4	2026.02.21 Kovalskyi, Roman (14184214) (2128)	1	91.40%	1. Nc3 a6 2. d4 d5 3. Bf4 Nf6
2026.02.21	Round 4: Yoon, Jacob D - Tran, David	4.5	2026.02.21 Tran, David (790630) (2012)	1	87.80%	1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5
2026.02.21	Round 3: Minko, Dmitry - Yoon, Jacob D	3.6	2026.02.21 Minko, Dmitry (24188468) (2104)	½	78.00%	1. e4 e6 2. d4 d5 3. Nc3 a6
2026.02.21	Round 2: Yoon, Jacob D - Akeya-Price, Robert	2.17	2026.02.21 Akeya-Price, Robert (430510) (1824)	1	86.30%	1. Nf3 d5 2. e3 Nf6 3. c4 c6
2026.02.21	Round 1: Ellett, Laurence - Yoon, Jacob D	1.21	2026.02.21 Ellett, Laurence (343455336)	1	92.70%	1. e4 c6 2. d4 d5 3. exd5 cxd5
2026.02.21	Round 5: Yoon, Jacob D - Shiatis, Rohan	5.2	2026.02.21 Shiatis, Rohan (417629) (1954)	1	93.50%	1. Nf3 Nf6 2. d4 g6 3. Nbd2 c5
2026.02.21	Round 4: Weersing, Abigail Riis - Yoon, Jacob D	4.2	2026.02.21 Weersing, Abigail Riis (460036) (1821)	1	-	1. d4 e6 2. c4 b6 3. Nc3 Bb7
2026.02.21	Round 3: Yoon, Jacob D - Cont, Arya	3.2	2026.02.21 Cont, Arya (26100363) (2071)	1	82.10%	1. Nf3 Nf6 2. d4 g6 3. Nbd2 d5
2026.02.21	Round 2: Saunders, Aron - Yoon, Jacob D	2.2	2026.02.21 Saunders, Aron (469343) (2025)	1	93.60%	1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7
2026.02.21	Round 1: Yoon, Jacob D - Kuhendiran, Tharshan	1.2	2026.02.21 Kuhendiran, Tharshan (423777) (1922)	0	83.00%	1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6
2026.02.19	Round 7: Carroll, Peter - Yoon, Jacob D	7.1	2026.02.19 Carroll, Peter (2510243) (2085)	0	89.30%	1. e4 e6 2. d4 d5 3. Nc3 a6
2026.02.19	Round 6: Yoon, Jacob D - Clarke, Connor	6.1	2026.02.19 Clarke, Connor (457655) (2117)	1	91.50%	1. d4 d5 2. c4 dxc4 3. e3 Nf6
2026.02.08	Round 6: Yoon, Jacob D - Czopor, Maciej	6.4	2026.02.08 Czopor, Maciej (21805431) (2459)	½	95.90%	1. e4 c5 2. Nf3 Nc6 3. d4 cxd4
2026.02.07	Round 5: Eggleston, David J - Yoon, Jacob D	5.6	2026.02.07 Eggleston, David J (412120) (2336)	0	88.80%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2026.01.11	Round 4: Maciol, Ryszard - Yoon, Jacob D	4.7	2026.01.11 Maciol, Ryszard (1118153) (2066)	1	92.50%	1. d4 Nf6 2. c4 e6 3. Nf3 b6
2026.01.10	Round 3: Yoon, Jacob D - Bezuidenhout, Roland	3.7	2026.01.10 Bezuidenhout, Roland (14304562) (2309)	½	95.20%	1. c4 c5 2. g3 g6 3. Bg2 Bg7
2026.01.02	Round 9: Badacsonyi, Stanley - Yoon, Jacob D	9.13	2026.01.02 Badacsonyi, Stanley (486973) (2306)	0	90.00%	1. d4 Nf6 2. c4 e6 3. g3 c5
2026.01.01	Round 8: Skytte, Rasmus - Yoon, Jacob D	8.14	2026.01.01 Skytte, Rasmus (1404210) (2356)	½	92.40%	1. e4 c5 2. Nc3 Nc6 3. f4 e6
2026.01.01	Round 7: Yoon, Jacob D - Kim, Changhoon	7.25	2026.01.01 Kim, Changhoon (34117234) (1874)	1	97.10%	1. d4 d5 2. c4 c6 3. Nc3 Nf6
2025.12.31	Round 6: Dewangan, Aayush - Yoon, Jacob D	6.34	2025.12.31 Dewangan, Aayush (469700) (1981)	1	67.10%	1. e4 c5 2. Nf3 d6 3. d4 cxd4
2025.12.30	Round 5: Yoon, Jacob D - Verbytski, Oleg	5.16	2025.12.30 Verbytski, Oleg (495506) (2039)	0	89.00%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2025.12.30	Round 4: Yoon, Jacob D - Kilambi, Venkata Ananth Akshay	4.27	2025.12.30 Kilambi, Venkata Ananth Akshay (489395) (2038)	1	86.10%	1. e4 c6 2. d4 d5 3. e5 c5
2025.12.29	Round 3: Gormally, Daniel W - Yoon, Jacob D	3.22	2025.12.29 Gormally, Daniel W (406465) (2396)	0	89.50%	1. d4 Nf6 2. Nf3 e6 3. c4 b6
2025.12.29	Round 2: Yoon, Jacob D - Ward, Cian	2.17	2025.12.29 Ward, Cian (475599) (1947)	1	85.20%	1. e4 e6 2. d4 d5 3. Nd2 Nf6
2025.12.28	Round 1: Williams, Simon K - Yoon, Jacob D	1.10	2025.12.28 Williams, Simon K (404454) (2434)	0	78.60%	1. c4 Nf6 2. Nc3 e6 3. e4 c5
2025.12.07	Round 10: Yoon, Jacob D - Mirzoeva, Elmira	10.1	2025.12.07 Mirzoeva, Elmira (4127951) (2175)	1	-	1. d4 d6 2. e4 Nf6 3. Nc3 Nbd7
2025.12.07	Round 9: Yoon, Jacob D - Manmay Chopra	9.37	2025.12.07 Manmay Chopra (25649191) (2234)	½	-	1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6
2025.12.07	Round 8: Breton, Martin - Yoon, Jacob D	8.30	2025.12.07 Breton, Martin (343428916) (1740)	1	90.30%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.12.07	Round 6: Timmermans, Mark - Yoon, Jacob D	6.34	2025.12.07 Timmermans, Mark (1026399) (2355)	0	-	1. b4 a5 2. b5 e5 3. Bb2 d6
2025.12.06	Round 5: Willow, Jonah B - Yoon, Jacob D	5.33	2025.12.06 Willow, Jonah B (438804) (2273)	0	83.20%	1. e4 c6 2. d4 d5 3. e5 c5
2025.12.06	Round 4: Yoon, Jacob D - Porras Mateo, Felipe	4.34	2025.12.06 Porras Mateo, Felipe (2279193) (2298)	1	84.60%	1. d4 d5 2. c4 c6 3. Nc3 Nf6
2025.12.06	Round 2: Yoon, Jacob D - Pranav Anand	2.22	2025.12.06 Pranav Anand (46626786) (2421)	0	90.80%	1. d4 Nf6 2. Nc3 d5 3. Bf4 e6
2025.12.03	Round 9: Sivanandan, Bodhana - Yoon, Jacob D	9.39	2025.12.03 Sivanandan, Bodhana (497592) (2229)	1	91.30%	1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7
2025.12.02	Round 8: Yoon, Jacob D - Hariharan, Shambavi	8.42	2025.12.02 Hariharan, Shambavi (488160) (2020)	1	90.30%	1. e4 e5 2. Nf3 Nc6 3. d4 exd4
2025.12.01	Round 7: Otsuka, Shou - Yoon, Jacob D	7.28	2025.12.01 Otsuka, Shou (7004702) (2335)	0	82.40%	1. e4 c5 2. Nc3 Nc6 3. Nge2 d6
2025.11.30	Round 6: Yoon, Jacob D - Aditya Kunal Patil	6.38	2025.11.30 Aditya Kunal Patil (25656716) (2208)	1	98.40%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2025.11.30	Round 5: Yoon, Jacob D - Balaji, Aaravamudhan	5.39	2025.11.30 Balaji, Aaravamudhan (436224) (2305)	½	90.50%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6
2025.11.29	Round 4: Dobrosmyslov, Artem - Yoon, Jacob D	4.45	2025.11.29 Dobrosmyslov, Artem (24139521) (2254)	½	82.10%	1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7
2025.11.28	Round 3: Richardson, John R - Yoon, Jacob D	3.47	2025.11.28 Richardson, John R (401617) (2224)	½	87.00%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.11.28	Round 2: Yoon, Jacob D - Vu Dinh, Adrien	2.35	2025.11.28 Vu Dinh, Adrien (45186995) (2281)	0	85.30%	1. e4 c5 2. Nf3 Nc6 3. d4 cxd4
2025.11.27	Round 1: Kovchan, Alexander - Yoon, Jacob D	1.27	2025.11.27 Kovchan, Alexander (14103052) (2440)	0	91.70%	1. e4 c6 2. d4 d5 3. e5 c5
2025.11.02	Round 2: Yoon, Jacob D - Toma, Katarzyna	2.14	2025.11.02 Toma, Katarzyna (1119907) (2200)	1	94.60%	1. e4 c5 2. Nf3 Nc6 3. d4 cxd4
2025.11.01	Round 1: Bates, Richard A - Yoon, Jacob D	1.12	2025.11.01 Bates, Richard A (403555) (2296)	0	87.20%	1. d4 Nf6 2. Nf3 e6 3. c4 b6
2025.09.20	2025 UK Open Blitz Qualifier: London 3 (Golders Green)	7.9	2025.09.20 Conquest, Stuart C (400181) (2419)	0	70.60%	1. d4 Nf6 2. Bg5 d5 3. e3 c5
2025.09.20	2025 UK Open Blitz Qualifier: London 3 (Golders Green)	6.9	2025.09.20 Pein, Jonathan (417092) (2254)	½	93.50%	1. e4 c6 2. b3 d5 3. Bb2 dxe4
2025.09.20	2025 UK Open Blitz Qualifier: London 3 (Golders Green)	3.11	2025.09.20 Damodaran, Patrick (465429) (1839)	1	83.00%	1. Nf3 e6 2. e3 d5 3. b3 c5
2025.05.31	Round 9: Yoon, Jacob D - Skettos, Nicolas	9.24	2025.05.31 Skettos, Nicolas (5900670) (1961)	½	92.30%	1. e4 e6 2. Nf3 d5 3. e5 c5
2025.05.30	Round 8: Yoon, Jacob D - Yu, Rock	8.21	2025.05.30 Yu, Rock (489000) (2048)	½	96.90%	1. d4 Nf6 2. c4 e6 3. Nf3 b6
2025.05.30	Round 7: Shearsby, Jude - Yoon, Jacob D	7.15	2025.05.30 Shearsby, Jude (462527) (2133)	0	87.70%	1. c4 b5 2. cxb5 a6 3. e4 Bb7
2025.05.29	Round 6: Yoon, Jacob D - Cuenca Jimenez, Jose Fernando	6.3	2025.05.29 Cuenca Jimenez, Jose Fernando (2255570) (2495)	0	88.10%	1. b3 d5 2. Bb2 Bf5 3. Nf3 e6
2025.05.28	Round 5: Iyengar, Ilya - Yoon, Jacob D	5.8	2025.05.28 Iyengar, Ilya (405949) (1979)	1	87.30%	1. d4 Nf6 2. Nf3 c5 3. d5 b5
2025.05.28	Round 4: Yoon, Jacob D - Hindol Ghosh	4.5	2025.05.28 Hindol Ghosh (25101641) (1669)	1	93.60%	1. Nf3 Nf6 2. b3 e6 3. Bb2 d5
2025.05.27	Round 3: Cole, James - Yoon, Jacob D	3.16	2025.05.27 Cole, James (431818) (1972)	1	92.70%	1. d4 d5 2. c4 e6 3. Nf3 c6
2025.05.26	Round 2: Yoon, Jacob D - Nawalaniec, Adam	2.35	2025.05.26 Nawalaniec, Adam (21023786) (2211)	0	89.40%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2025.05.26	Round 1: Kothari, Jai - Yoon, Jacob D	1.25	2025.05.26 Kothari, Jai (477117) (2007)	½	95.70%	1. e4 e6 2. d4 d5 3. Bd3 c5
2025.05.05	Round 11: Yoon, Jacob D - Berry, Neil	11.37	2025.05.05 Berry, Neil (2400650) (2261)	0	81.20%	1. Nf3 d5 2. e3 Nf6 3. c4 e6
2025.05.04	Round 10: Varney, Zoe - Yoon, Jacob D	10.39	2025.05.04 Varney, Zoe (436135) (2060)	1	96.10%	1. e4 d5 2. exd5 c6 3. c4 cxd5
2025.05.03	Round 9: Yoon, Jacob D - Wadsworth, Matthew J	9.3	2025.05.03 Wadsworth, Matthew J (415804) (2484)	0	92.00%	1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+
2025.04.06	Round 8: Yoon, Jacob D - Cyborowski, Lukasz	8.12	2025.04.06 Cyborowski, Lukasz (1108760) (2460)	½	96.10%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2025.04.05	Round 7: Golding, Alex - Yoon, Jacob D	7.28	2025.04.05 Golding, Alex (427241) (2369)	0	90.40%	1. e4 c6 2. d4 d5 3. e5 c5
2025.03.02	Round 11: Mihalik, Agoston - Yoon, Jacob D	11.21	2025.03.02 Mihalik, Agoston (719021) (2137)	½	86.20%	1. e4 e6 2. d4 d5 3. Nd2 Be7
2025.03.02	Round 10: Yoon, Jacob D - Deva, Chetan	10.23	2025.03.02 Deva, Chetan (408891)	1	82.60%	1. d4 e6 2. c4 f5 3. Nc3 b6
2025.03.02	Round 9: Mikalajunas, Kajus - Yoon, Jacob D	9.23	2025.03.02 Mikalajunas, Kajus (483621) (2018)	½	91.80%	1. Nf3 g6 2. e4 Bg7 3. d4 d6
2025.03.02	Round 8: Yoon, Jacob D - Badacsonyi, Stanley	8.19	2025.03.02 Badacsonyi, Stanley (486973) (2297)	0	89.60%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2025.03.02	Round 7: Bellano, Harry - Yoon, Jacob D	7.29	2025.03.02 Bellano, Harry (343430015) (1551)	1	90.60%	1. e4 c6 2. d4 d5 3. f3 e6
2025.03.01	Round 6: Yoon, Jacob D - Brocklehurst, Andrew	6.36	2025.03.01 Brocklehurst, Andrew (424765) (1830)	1	93.30%	1. d4 Nf6 2. Nc3 d6 3. e4 g6
2025.03.01	Round 5: Graff, Ben - Yoon, Jacob D	5.45	2025.03.01 Graff, Ben (424170) (1790)	1	96.00%	1. e4 c6 2. d4 d5 3. exd5 cxd5
2025.03.01	Round 4: Yoon, Jacob D - Knox, Edward	4.60	2025.03.01 Knox, Edward (343432328) (1675)	1	98.00%	1. d4 g6 2. e4 Bg7 3. Nc3 d6
2025.03.01	Round 3: Lee, Yuk Hei - Yoon, Jacob D	3.42	2025.03.01 Lee, Yuk Hei (343411061) (1796)	0	90.40%	1. e4 c6 2. d4 d5 3. Nc3 dxe4
2025.03.01	Round 2: Yoon, Jacob D - Vitiugov, Nikita	2.3	2025.03.01 Vitiugov, Nikita (4152956) (2586)	0	80.90%	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
2025.03.01	Round 1: Boganadham, Ved Sudeep - Yoon, Jacob D	1.62	2025.03.01 Boganadham, Ved Sudeep (343436048) (1599)	1	-	1. e4 c6 2. Nc3 d5 3. Nf3 Bg4
2025.02.23	British Universities Chess Association Championship 2025	8.20	2025.02.23 Muhunthan, Charukgan (456365) (1705)	1	97.40%	1. e4 c6 2. Nf3 d5 3. Nc3 Bg4
2025.02.23	British Universities Chess Association Championship 2025	7.4	2025.02.23 Obiamiwe, Jason (343465587) (1950)	1	96.60%	1. e4 c6 2. d4 d5 3. e5 c5
2025.02.22	British Universities Chess Association Blitz 2025	9.3	2025.02.22 O`Gorman, Tom (2508249) (2328)	0	-	1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7
2025.02.22	British Universities Chess Association Blitz 2025	8.6	2025.02.22 Minko, Dmitry (24188468) (1979)	1	95.60%	1. d4 d5 2. c4 e6 3. Nc3 Be7
2025.02.22	British Universities Chess Association Blitz 2025	7.8	2025.02.22 Goh, Jinghan Cameron (5804540) (2014)	1	88.80%	1. d4 a6 2. c4 c5 3. Nf3 cxd4
2025.02.22	British Universities Chess Association Blitz 2025	3.12	2025.02.22 Imam-Sadeque, Ali (343422500) (1862)	1	83.00%	1. d4 d5 2. e3 Nf6 3. Bd3 Bg4
2025.02.22	British Universities Chess Association Blitz 2025	2.9	2025.02.22 Smith, George (1804588) (1791)	0	81.10%	1. d4 f5 2. Nf3 Nf6 3. Bg5 e6
2025.02.22	British Universities Chess Association Blitz 2025	1.10	2025.02.22 Flynn, Colum (2535742)	1	88.90%	1. d4 g6 2. Bf4 Bg7 3. Nc3 d6
2025.02.22	British Universities Chess Association Championship 2025	5.8	2025.02.22 Kirupakaran, Vishnu (443492) (1841)	1	80.10%	1. e4 c6 2. b3 d5 3. Bb2 e6
2025.02.22	British Universities Chess Association Championship 2025	4.15	2025.02.22 Gallagher, Daniel GH (436550) (2084)	0	86.40%	1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7
2025.02.22	British Universities Chess Association Championship 2025	3.11	2025.02.22 Carpenter-Friend, Ben (343413099) (1606)	1	96.30%	1. d4 Nf6 2. c4 g6 3. Nc3 d5
2025.02.22	British Universities Chess Association Championship 2025	2.11	2025.02.22 Turner, Max N (447722) (2209)	1	77.10%	1. d4 d5 2. c4 Nc6 3. Nc3 Nf6
2025.02.22	British Universities Chess Association Championship 2025	1.15	2025.02.22 Nyberg, Max (1967)	1	95.40%	1. d4 Nf6 2. Nc3 g6 3. e4 d6
2025.02.16	Round 6: Yoon, Jacob D - Maycock Bates, David Henry	6.35	2025.02.16 Maycock Bates, David Henry (5142547) (2284)	½	89.60%	1. d4 Nf6 2. c4 e6 3. g4 d5
2025.02.15	Round 5: Carroll, Thomas - Yoon, Jacob D	5.39	2025.02.15 Carroll, Thomas (450111) (2130)	0	93.10%	1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5
2025.01.26	Round 4: Yoon, Jacob D - Zhao, George	4.46	2025.01.26 Zhao, George (494607) (2163)	1	97.80%	1. d4 e6 2. c4 Nf6 3. Nc3 Bb4
2025.01.25	Round 3: Yoon, Jacob D - Dong, Bao Nghia	3.21	2025.01.25 Dong, Bao Nghia (12400343) (2250)	1	-	1. Nf3 f5 2. c4 g6 3. Nc3 Bg7
2024.12.06	Round 8: Yoon, Jacob D - Zhou, Yang-Fan	8.36	2024.12.06 Zhou, Yang-Fan (468584) (2424)	0	89.00%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.12.05	Round 7: Pert, Max - Yoon, Jacob D	7.17	2024.12.05 Pert, Max (456845) (2215)	½	90.20%	1. d4 e6 2. Nf3 f5 3. Nc3 d5
2024.12.03	Round 6: Yoon, Jacob D - Verma, Shlok	6.24	2024.12.03 Verma, Shlok (441228) (2191)	1	97.10%	1. c4 e6 2. Nf3 Nf6 3. d4 d5
2024.12.02	Round 5: Roberson, Peter T - Yoon, Jacob D	5.12	2024.12.02 Roberson, Peter T (412384) (2432)	0	81.90%	1. e4 c6 2. d4 d5 3. exd5 cxd5
2024.12.01	Round 4: Yoon, Jacob D - Bird, Joel	4.24	2024.12.01 Bird, Joel (429252) (1993)	1	97.00%	1. d4 d5 2. c4 c6 3. Nc3 Nf6
2024.11.30	Round 3: Ghasi, Ameet K - Yoon, Jacob D	3.10	2024.11.30 Ghasi, Ameet K (409200) (2503)	0	81.50%	1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7
2024.11.30	Round 2: Yoon, Jacob D - Hanache, Kai	2.22	2024.11.30 Hanache, Kai (490105) (2080)	1	97.10%	1. Nf3 Nf6 2. d4 g6 3. Nbd2 d5
2024.11.29	Round 1: Dasgupta, Avyukt - Yoon, Jacob D	1.36	2024.11.29 Dasgupta, Avyukt (480630) (2034)	½	87.90%	1. e4 e6 2. d4 d5 3. exd5 exd5
2024.11.24	Round 2: Foisor, Mihaela-Veronica - Yoon, Jacob D	2.45	2024.11.24 Foisor, Mihaela-Veronica (2270757) (2155)	½	93.60%	1. c4 c6 2. d4 d5 3. e3 Nf6
2024.11.23	Round 1: Yoon, Jacob D - Arkell, Keith C	1.29	2024.11.23 Arkell, Keith C (400270) (2339)	½	92.30%	1. e4 c6 2. d4 d5 3. Nc3 dxe4
2024.09.21	Round 8: Roberson, Peter T - Yoon, Jacob D	8.4	2024.09.21 Roberson, Peter T (412384) (2346)	0	83.50%	1. e4 c6 2. d4 d5 3. e5 c5
2024.09.21	Round 2: Yoon, Jacob D - Czopor, Maciej	2.5	2024.09.21 Czopor, Maciej (21805431) (2320)	1	94.10%	1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7
2024.08.26	Round 9: Yoon, Jacob D - Kalavannan, Koby	9.7	2024.08.26 Kalavannan, Koby (425753) (2248)	1	93.20%	1. e4 c5 2. b3 Nf6 3. e5 Nd5
2024.08.25	Round 8: Shkuro, Iuri - Yoon, Jacob D	8.7	2024.08.25 Shkuro, Iuri (14108836) (2566)	½	93.90%	1. e4 c6 2. d4 d5 3. e5 c5
2024.08.24	Round 5: Korneev, Oleg - Yoon, Jacob D	5.6	2024.08.24 Korneev, Oleg (4156803) (2469)	½	91.10%	1. e4 c6 2. c4 d5 3. exd5 cxd5
2024.08.23	Round 4: Yoon, Jacob D - Lutsko, Artem	4.8	2024.08.23 Lutsko, Artem (14188767) (2414)	½	93.70%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2024.08.23	Round 3: Yoon, Jacob D - Dgebuadze, Alexandre	3.7	2024.08.23 Dgebuadze, Alexandre (203882) (2430)	½	98.50%	1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+
2024.08.22	Round 1: Yoon, Jacob D - Wadsworth, Matthew J	1.5	2024.08.22 Wadsworth, Matthew J (415804) (2464)	½	91.40%	1. d4 Nf6 2. Nf3 e6 3. c4 b6
2024.08.04	Round 9: Yoon, Jacob D - Pert, Max	9.6	2024.08.04 Pert, Max (456845) (2034)	½	92.10%	1. Nf3 d5 2. c4 e6 3. b3 Nf6
2024.08.03	Round 8: Fava, Lorenzo - Yoon, Jacob D	8.1	2024.08.03 Fava, Lorenzo (2837434) (2154)	0	87.50%	1. Nf3 d5 2. c4 c6 3. e3 Nf6
2024.08.02	Round 7: Harborne, Matthew J - Yoon, Jacob D	7.2	2024.08.02 Harborne, Matthew J (411531) (2103)	½	91.90%	1. e4 g6 2. d4 Bg7 3. Nc3 d6
2024.08.01	Round 6: Yoon, Jacob D - Jaunooby, Ali R	6.2	2024.08.01 Jaunooby, Ali R (413291) (2145)	½	93.40%	1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4
2024.07.30	Round 4: Yoon, Jacob D - Bharat Kumar, Balahari	4.2	2024.07.30 Bharat Kumar, Balahari (496464) (1989)	1	93.20%	1. d4 d5 2. c4 dxc4 3. e3 Nf6
2024.07.29	Round 3: Kovalskyi, Roman - Yoon, Jacob D	3.4	2024.07.29 Kovalskyi, Roman (14184214) (1989)	1	89.10%	1. e4 e6 2. d4 d5 3. e5 c5
2024.07.28	Round 2: Yoon, Jacob D - Lebedev, Lion	2.6	2024.07.28 Lebedev, Lion (551005492) (1941)	1	97.00%	1. d4 d5 2. c4 c6 3. Nc3 Nf6
2024.07.27	Round 1: Vaidyanathan, Sathya - Yoon, Jacob D	1.7	2024.07.27 Vaidyanathan, Sathya (490539) (1844)	1	95.10%	1. e4 d6 2. d4 g6 3. Nc3 Bg7
2024.07.19	Round 5: Price, Gwilym - Yoon, Jacob D	5.1	2024.07.19 Price, Gwilym (443980) (2229)	½	99.20%	1. e4 c6 2. d4 d5 3. e5 c5
2024.06.28	Round 5: Yoon, Jacob D - Usharovsky, Ron	5.13	2024.06.28 Usharovsky, Ron (64300773) (1784)	1	95.00%	1. d4 d5 2. Nc3 Nf6 3. Bf4 a6
2024.06.28	Round 4: Korshunov, Sergey And. - Yoon, Jacob D	4.19	2024.06.28 Korshunov, Sergey And. (34274715) (2361)	0	91.40%	1. e4 g6 2. d4 Bg7 3. Nc3 d6
2024.06.27	Round 3: Yoon, Jacob D - Makkar, Rajat	3.13	2024.06.27 Makkar, Rajat (36016810) (2456)	0	89.30%	1. d4 d5 2. Nc3 Nf6 3. Bf4 e6
2024.06.27	Round 2: Vaddhireddy, Sai - Yoon, Jacob D	2.31	2024.06.27 Vaddhireddy, Sai (499560) (1724)	1	91.90%	1. d4 g6 2. c4 Bg7 3. Nc3 d6
2024.06.27	Round 1: Yoon, Jacob D - Sanfey, Gregor	1.31	2024.06.27 Sanfey, Gregor (467928) (1672)	1	80.50%	1. d4 b6 2. c4 Bb7 3. Nf3 e6
2023.05.29	English Open Championships 2023	7.21	2023.05.29 Green, Michael (437514) (1917)	½	93.30%	1. Nf3 d5 2. c4 d4 3. b4 f6
2023.05.28	English Open Championships 2023	6.13	2023.05.28 Derakhshani, Borna (12518450) (2359)	0	89.80%	1. d4 Nf6 2. Nc3 d5 3. Bg5 h6
2023.05.28	English Open Championships 2023	5.12	2023.05.28 Khandelwal, Ankush (413470) (2205)	0	90.10%	1. d4 Nf6 2. Bf4 g6 3. Nc3 d5
2023.05.27	English Open Championships 2023	4.9	2023.05.27 Wells, Peter K (400327) (2356)	½	91.70%	1. d4 d5 2. c4 Nc6 3. Nf3 Bg4
2023.05.27	English Open Championships 2023	3.21	2023.05.27 Alldritt, Nigel R E (404543) (1954)	1	96.00%	1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5
2023.05.26	English Open Championships 2023	2.18	2023.05.26 Fellowes, Billy (483540) (1824)	½	86.20%	1. e4 c5 2. Nf3 Nc6 3. Bb5 d6
2023.04.10	3rd 4NCL Easter Congress: Open	7.3	2023.04.10 Turner, Max N (447722) (2264)	½	97.90%	1. e4 e6 2. d4 d5 3. Nd2 Be7
2023.04.10	3rd 4NCL Easter Congress: Open	6.8	2023.04.10 James, Russell A (407070) (2068)	1	97.00%	1. d4 d6 2. Nf3 f5 3. h4 c6
2023.04.09	3rd 4NCL Easter Congress: Open	5.9	2023.04.09 Madhavan, Sanjith (2408562) (1961)	½	89.30%	1. e4 g6 2. d4 Bg7 3. Nc3 d6
2023.04.09	3rd 4NCL Easter Congress: Open	4.11	2023.04.09 Turner, Lewis A (412600) (1825)	1	94.60%	1. Nf3 g6 2. b3 Bg7 3. d4 Nf6
2023.04.08	3rd 4NCL Easter Congress: Open	3.8	2023.04.08 Fava, Lorenzo (2837434) (2107)	0	89.90%	1. d4 g6 2. c4 Bg7 3. Nc3 d6
2023.04.08	3rd 4NCL Easter Congress: Open	2.14	2023.04.08 Sandhu, Manvith (458872) (1860)	1	92.60%	1. e4 g6 2. d4 Bg7 3. Nc3 d6
????.??.??	British Universities Chess Association Championship 2025	9.8	????.??.?? Asadli, Toghrul (13417940) (1752)	½	90.60%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
????.??.??	British Universities Chess Association Championship 2025	6.20	????.??.?? Leslie, Alex (452505) (1942)	½	85.20%	1. d4 Nf6 2. c4 e6 3. g4 Bb4+
????.??.??	British Universities Chess Association Blitz 2025	6.6	????.??.?? Asadli, Toghrul (13417940) (1746)	0	90.10%	1. d4 d5 2. Nc3 Nf6 3. Bf4 e6
????.??.??	British Universities Chess Association Blitz 2025	5.8	????.??.?? Hng, Mei-Xian Eunice (5806585) (2064)	1	98.60%	1. e4 c6 2. d4 d5 3. exd5 cxd5
????.??.??	British Universities Chess Association Blitz 2025	4.10	????.??.?? Kumaresan, Darshan (442330) (1859)	1	77.90%	1. d4 Nf6 2. c4 g6 3. Nc3 d5
	Round 9: Yoon, Jacob D - Bradbury, Neil H	9.31	Bradbury, Neil H (400513) (2137)	1	90.70%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
	Round 8: Liu,Tianyi (Jack) - Yoon, Jacob D	8.28	Liu,Tianyi (Jack) (8627894) (2071)	0	91.20%	1. e4 c6 2. d4 d5 3. e5 c5
	Round 7: Yoon, Jacob D - Hryshchenko, Kamila	7.32	Hryshchenko, Kamila (14147491) (2097)	1	97.00%	1. d4 g6 2. e4 Bg7 3. Nc3 d6
	Round 6: Kueh, Audrey - Yoon, Jacob D	6.32	Kueh, Audrey (421596) (2071)	½	95.30%	1. e4 c6 2. d4 d5 3. e5 c5
	Round 5: Yoon, Jacob D - Kalavannan, Koby	5.23	Kalavannan, Koby (425753) (2323)	0	88.50%	1. e4 c5 2. Nf3 Nc6 3. d4 cxd4
	Round 4: Kanyamarala, Tarun - Yoon, Jacob D	4.15	Kanyamarala, Tarun (45004714) (2397)	0	86.20%	1. d4 Nf6 2. Nf3 e6 3. Bf4 b6
	Round 3: Yoon, Jacob D - Hobson, Kenneth	3.22	Hobson, Kenneth (480819) (2361)	1	97.40%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
	Round 2: Honey, Luke Anthony - Yoon, Jacob D	2.36	Honey, Luke Anthony (343403425) (2082)	1	96.30%	1. e4 c6 2. d4 d5 3. exd5 cxd5
	Round 1: Yoon, Jacob D - Conquest, Stuart C	1.4	Conquest, Stuart C (400181) (2511)	0	89.00%	1. d4 Nf6 2. c4 e6 3. Nf3 d5