Player profile
Williams, Simon K
Dossier
144 of 149 games analyzed.
Accuracy: 92.1%
Opened d4: 33/48Opened Nf3: 6/48Opened c4: 4/48Opened e4: 3/48Opened a4: 1/48Opened f4: 1/48
Castled kingside: 83Same-side castling: 74Did not castle: 11Opposite-side castling: 10Castled queenside: 8
Played on the kingside: 53Played in the center: 32Fianchettoed kingside: 21Fianchettoed queenside: 18Played on the queenside: 14
Active pieces: 85Space advantage: 66Initiated exchanges: 64Isolated pawn: 61Kept the bishop pair: 58Sacrificed material: 58Backward pawn: 57Missed tactics: 23Avoided exchanges: 20Accepted short draws: 7
Openings
Click "+" to add that group to the games list below. Multiple groups can be added at once.
As White 48 games 23W 15D 10L
Queen's Gambit Declined 10 games 4W 3D 3L
Ragozin Defense 3 games 0W 2D 1L
(unspecified)
2 games
0W
1D
1L
Vienna Variation
1 game
0W
1D
0L
Semi-Tarrasch Defense 2 games 1W 0D 1L
Exchange Variation
1 game
1W
0D
0L
Main Line
1 game
0W
0D
1L
Three Knights Variation 2 games 1W 0D 1L
(unspecified)
2 games
1W
0D
1L
Harrwitz Attack 2 games 1W 1D 0L
Orthodox Defense
1 game
1W
0D
0L
Fianchetto Defense
1 game
0W
1D
0L
Traditional Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
English Opening 5 games 2W 3D 0L
Anglo-Indian Defense 3 games 2W 1D 0L
(unspecified)
1 game
0W
1D
0L
Flohr-Mikenas-Carls Variation, Nei Gambit
1 game
1W
0D
0L
Queen's Knight Variation
1 game
1W
0D
0L
Agincourt Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Great Snake Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Trompowsky Attack 4 games 4W 0D 0L
(unspecified) 3 games 3W 0D 0L
(unspecified)
3 games
3W
0D
0L
Raptor Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Indian Defense 3 games 1W 2D 0L
Anti-Grünfeld 1 game 0W 1D 0L
Basman-Williams Attack
1 game
0W
1D
0L
Pseudo-Benko 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Accelerated London System 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Queen's Gambit Accepted 3 games 0W 0D 3L
(unspecified) 2 games 0W 0D 2L
(unspecified)
2 games
0W
0D
2L
Classical Defense 1 game 0W 0D 1L
Russian Gambit
1 game
0W
0D
1L
Sicilian Defense 2 games 1W 1D 0L
French Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Najdorf Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Zukertort Opening 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
(unspecified)
2 games
1W
0D
1L
Torre Attack 2 games 0W 2D 0L
Classical Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Fianchetto Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Semi-Slav Defense 2 games 1W 1D 0L
Botvinnik Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Pawn Game 2 games 2W 0D 0L
Torre Attack 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Colle System 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Slav Defense 2 games 1W 0D 1L
Geller Gambit 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Exchange Variation 1 game 0W 0D 1L
Boor Attack
1 game
0W
0D
1L
Queen's Indian Defense 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
Polugaevsky Gambit
1 game
0W
0D
1L
King's Indian Attack 1 game 1W 0D 0L
French Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Yusupov-Rubinstein System 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
King's Indian Defense 1 game 0W 1D 0L
Smyslov Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Ware Opening 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Grünfeld Defense 1 game 1W 0D 0L
Exchange Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Dutch Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
King's Gambit Accepted 1 game 0W 1D 0L
Bishop's Gambit 1 game 0W 1D 0L
Cozio Variation
1 game
0W
1D
0L
Pirc Defense 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Bird Opening 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Réti Opening 1 game 0W 0D 1L
Anglo-Slav Variation 1 game 0W 0D 1L
Gurevich System
1 game
0W
0D
1L
As Black 59 games 25W 17D 17L
Dutch Defense 16 games 9W 3D 4L
Classical Variation 12 games 8W 3D 1L
(unspecified)
12 games
8W
3D
1L
Rubinstein Variation 2 games 0W 0D 2L
(unspecified)
2 games
0W
0D
2L
Raphael Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Stonewall Variation 1 game 0W 0D 1L
Modern Variation
1 game
0W
0D
1L
French Defense 14 games 4W 8D 2L
Tarrasch Variation 5 games 2W 2D 1L
Closed Variation, Main Line
3 games
1W
2D
0L
(unspecified)
1 game
1W
0D
0L
Closed Variation
1 game
0W
0D
1L
Schlechter Variation 2 games 0W 2D 0L
(unspecified)
2 games
0W
2D
0L
Steinitz Variation 2 games 0W 2D 0L
Boleslavsky Variation
2 games
0W
2D
0L
Exchange Variation 2 games 0W 2D 0L
(unspecified)
2 games
0W
2D
0L
Advance Variation 2 games 2W 0D 0L
Euwe Variation
2 games
2W
0D
0L
Chigorin Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Sicilian Defense 5 games 2W 1D 2L
Nyezhmetdinov-Rossolimo Attack 1 game 0W 0D 1L
Gurgenidze Variation
1 game
0W
0D
1L
Wing Gambit 1 game 1W 0D 0L
Marshall Variation
1 game
1W
0D
0L
Moscow Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
French Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Sozin Attack 1 game 1W 0D 0L
Leonhardt Variation
1 game
1W
0D
0L
Zukertort Opening 4 games 0W 1D 3L
Dutch Variation 2 games 0W 0D 2L
(unspecified)
2 games
0W
0D
2L
Pirc Invitation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Horwitz Defense 4 games 3W 0D 1L
(unspecified) 4 games 3W 0D 1L
(unspecified)
4 games
3W
0D
1L
English Opening 2 games 2W 0D 0L
King's English Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Agincourt Defense 1 game 1W 0D 0L
Neo-Catalan Declined
1 game
1W
0D
0L
Indian Defense 2 games 1W 1D 0L
Wade-Tartakower Defense 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Przepiorka Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Modern Defense 2 games 1W 0D 1L
Two Knights Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Geller's System 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
King's Indian Defense 1 game 0W 0D 1L
Petrosian Variation 1 game 0W 0D 1L
Stein Defense
1 game
0W
0D
1L
Four Knights Game 1 game 0W 0D 1L
Spanish Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Italian Game 1 game 1W 0D 0L
Paris Defense 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Catalan Opening 1 game 1W 0D 0L
Closed 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Pawn Game 1 game 0W 1D 0L
Accelerated London System 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Caro-Kann Defense 1 game 0W 0D 1L
Exchange Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Philidor Defense 1 game 0W 1D 0L
Lion Variation 1 game 0W 1D 0L
Lion's Claw, with Be2 and c6
1 game
0W
1D
0L
Queen's Gambit Declined 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Semi-Slav Defense 1 game 1W 0D 0L
Main Line 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
English Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Blunders Top 4 of 467
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 149 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.10.11 | Round 2: Roberson, Peter T - Williams, Simon K | 2.28 | 2026.10.11 Roberson, Peter T (412384) (2438) | 0 | 82.80% | 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2026.10.10 | Round 1: Williams, Simon K - Bates, Richard A | 1.34 | 2026.10.10 Bates, Richard A (403555) (2287) | ½ | 85.60% | 1. e4 c5 2. Nf3 e6 3. g3 Nc6 | |
| 2026.08.09 | Round 9: Williams, Simon K - McShane, Luke J | 9.2 | 2026.08.09 McShane, Luke J (404853) (2597) | 0 | 92.80% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| 2026.08.08 | Round 8: Bazakutsa, Svyatoslav - Williams, Simon K | 8.3 | 2026.08.08 Bazakutsa, Svyatoslav (14198525) (2488) | 1 | 93.30% | 1. c4 e5 2. g3 Nc6 3. Bg2 h5 | |
| 2026.08.07 | Round 7: Williams, Simon K - Czopor, Maciej | 7.4 | 2026.08.07 Czopor, Maciej (21805431) (2455) | 1 | 94.10% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2026.08.06 | Round 6: Williams, Simon K - He, Tom Junde | 6.10 | 2026.08.06 He, Tom Junde (488810) (2266) | 1 | 91.60% | 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 | |
| 2026.08.05 | Round 5: Ledger, Andrew J - Williams, Simon K | 5.8 | 2026.08.05 Ledger, Andrew J (400610) (2312) | ½ | 63.40% | 1. Nf3 d6 2. c4 g6 3. g3 Bg7 | |
| 2026.08.04 | Round 4: Williams, Simon K - Waldhausen Gordon, Frederick | 4.7 | 2026.08.04 Waldhausen Gordon, Frederick (2409143) (2455) | ½ | 97.80% | 1. d4 Nf6 2. Nf3 e6 3. e3 c5 | |
| 2026.08.03 | Round 3: Han, Qixiang - Williams, Simon K | 3.5 | 2026.08.03 Han, Qixiang (496952) (2239) | ½ | 96.20% | 1. d4 e6 2. e4 d5 3. Bd3 c5 | |
| 2026.08.02 | Round 2: Williams, Simon K - Bezuidenhout, Roland | 2.11 | 2026.08.02 Bezuidenhout, Roland (14304562) (2284) | 1 | 95.90% | 1. Nf3 d5 2. e3 Nf6 3. c4 e6 | |
| 2026.08.01 | Round 1: Elgar, Tim - Williams, Simon K | 1.13 | 2026.08.01 Elgar, Tim (343413285) (2166) | 1 | 90.40% | 1. Nf3 d6 2. d4 Nf6 3. g3 g6 | |
| 2026.07.23 | Round 1: Sahoo, Shivam - Williams, Simon K | 1.4 | 2026.07.23 Sahoo, Shivam (343419194) (1827) | 0 | - | ||
| 2026.07.23 | Round 5: Williams, Simon K - Kolani, Arjun | 5.10 | 2026.07.23 Kolani, Arjun (446700) (2137) | ½ | 97.80% | 1. d4 Nf6 2. c4 g6 3. h4 Bg7 | |
| 2026.07.23 | Round 4: Khoury, Theo - Williams, Simon K | 4.10 | 2026.07.23 Khoury, Theo (480703) (2172) | ½ | 96.40% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2026.07.22 | Round 3: Williams, Simon K - Zilka, Stepan | 3.10 | 2026.07.22 Zilka, Stepan (315303) (2526) | ½ | 86.20% | 1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 | |
| 2026.07.22 | Round 2: Southcott-Moyers, Indy - Williams, Simon K | 2.10 | 2026.07.22 Southcott-Moyers, Indy (488542) (2208) | 1 | 95.30% | 1. d4 e6 2. c4 f5 3. a3 Nf6 | |
| 2026.07.21 | Round 1: Williams, Simon K - Shearsby, Jude | 1.10 | 2026.07.21 Shearsby, Jude (462527) (2243) | ½ | 88.90% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2026.05.04 | Round 11: Williams, Simon K - Nawalaniec, Adam | 11.42 | 2026.05.04 Nawalaniec, Adam (21023786) (2311) | 1 | 98.20% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.05.03 | Round 10: Williams, Simon K - Rakotomaharo, Fy Antenaina | 10.19 | 2026.05.03 Rakotomaharo, Fy Antenaina (13100050) (2441) | ½ | 91.20% | 1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 | |
| 2026.05.02 | Round 9: Gallana, Marco - Williams, Simon K | 9.33 | 2026.05.02 Gallana, Marco (824542) (2239) | ½ | 90.30% | 1. d4 e6 2. Nf3 f5 3. g3 Nf6 | |
| 2026.03.31 | Reykjavik Open 2026 | 9.41 | 2026.03.31 Sterck, Arno (228249) (2252) | 1 | 92.70% | 1. a4 d5 2. e3 Nf6 3. f4 Bf5 | |
| 2026.03.30 | Reykjavik Open 2026 | 8.41 | 2026.03.30 Birkisson, Bardur Orn (2310597) (2207) | 1 | 92.90% | 1. d4 f5 2. Nc3 Nf6 3. Bg5 d5 | |
| 2026.03.29 | Reykjavik Open 2026 | 7.41 | 2026.03.29 Andersen, Mads (1413864) (2562) | 0 | 87.80% | 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 | |
| 2026.03.28 | Reykjavik Open 2026 | 6.41 | 2026.03.28 Sivanandan, Bodhana (497592) (2268) | 1 | 85.90% | 1. e4 d6 2. d4 g6 3. Nc3 Bg7 | |
| 2026.03.28 | Reykjavik Open 2026 | 5.41 | 2026.03.28 De Vleeschauwer, Maarten (214809) (2277) | ½ | 93.20% | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 | |
| 2026.03.27 | Reykjavik Open 2026 | 4.41 | 2026.03.27 Mahalakshmi, M (5001080) (2232) | 1 | 92.90% | 1. d4 e6 2. c4 f5 3. g3 Nf6 | |
| 2026.03.26 | Reykjavik Open 2026 | 3.41 | 2026.03.26 Maurizzi, MarcAndria (36083534) (2614) | 0 | 86.10% | 1. d4 Nf6 2. Nf3 d5 3. c4 e6 | |
| 2026.03.26 | Reykjavik Open 2026 | 2.41 | 2026.03.26 Vemparala, Nikash (30960967) (2201) | 1 | 98.20% | 1. c4 e6 2. g3 d5 3. Bg2 Nf6 | |
| 2026.03.25 | Reykjavik Open 2026 | 1.41 | 2026.03.25 Krischer, Markus (34616152) (2042) | 1 | 94.60% | 1. d4 Nf6 2. Bg5 c5 3. d5 d6 | |
| 2026.03.07 | Icelandic team chess championship premier league | 9.12 | 2026.03.07 Sulypa, Oleksandr (14100487) (2455) | ½ | 97.60% | 1. d4 d5 2. c4 e6 3. Nc3 Bb4 | |
| 2026.03.07 | Icelandic team chess championship premier league | 8.12 | 2026.03.07 O`Donnell, Conor (2504243) (2317) | 1 | 96.60% | 1. d4 e6 2. c4 f5 3. g3 Nf6 | |
| 2026.03.06 | Icelandic team chess championship premier league | 7.21 | 2026.03.06 Ragnarsson, Dagur (2304058) (2376) | ½ | 96.60% | 1. d4 e6 2. c4 f5 3. a3 Nf6 | |
| 2026.03.05 | Icelandic team chess championship premier league | 6.5 | 2026.03.05 Danielsen, Henrik (1400185) (2476) | 1 | 68.50% | 1. d4 e6 2. Nf3 f5 3. c4 Nf6 | |
| 2026.02.21 | Power Solutions Arctic Chess NGP 2026 | 6.1 | 2026.02.21 Kaasen, Tor Fredrik (1516647) (2476) | 1 | 96.20% | 1. d4 e6 2. c4 f5 3. g3 Nf6 | |
| 2026.02.20 | Power Solutions Arctic Chess NGP 2026 | 4.2 | 2026.02.20 Grave, Jacob Templen (1542656) (2382) | 1 | 97.30% | 1. e4 e6 2. d4 d5 3. Nd2 h6 | |
| 2026.02.19 | Power Solutions Arctic Chess NGP 2026 | 3.3 | 2026.02.19 Hammari, Vinjar (1552007) (2101) | ½ | 96.90% | 1. Nf3 d5 2. e3 Nf6 3. c4 e6 | |
| 2026.02.19 | Power Solutions Arctic Chess NGP 2026 | 2.3 | 2026.02.19 Aamodt, Peder Marcus (1543679) (2189) | 1 | 94.90% | 1. d4 e6 2. c4 f5 3. a3 Nf6 | |
| 2026.02.18 | Power Solutions Arctic Chess NGP 2026 | 1.3 | 2026.02.18 Heier, Odin Nikolai (1518003) (2007) | 1 | 97.80% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 | |
| 2026.01.11 | Round 4: Williams, Simon K - Chow, Samuel | 4.19 | 2026.01.11 Chow, Samuel (3202992) (2364) | 1 | 95.10% | 1. d4 Nf6 2. c4 g6 3. Nc3 d5 | |
| 2026.01.10 | Round 3: Merry, Alan B - Williams, Simon K | 3.27 | 2026.01.10 Merry, Alan B (418811) (2400) | 0 | 90.40% | 1. d4 f5 2. c4 e6 3. Nc3 Nf6 | |
| 2026.01.02 | Round 9: Golding, Alex - Williams, Simon K | 9.2 | 2026.01.02 Golding, Alex (427241) (2370) | 0 | 88.00% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2026.01.01 | Round 7: Williams, Simon K - Laurent-Paoli, Pierre | 7.2 | 2026.01.01 Laurent-Paoli, Pierre (26017962) (2539) | 1 | 89.60% | 1. d4 Nf6 2. Nf3 c5 3. d5 b5 | |
| 2025.12.31 | Round 6: Verbytski, Oleg - Williams, Simon K | 6.10 | 2025.12.31 Verbytski, Oleg (495506) (2039) | 1 | 95.10% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 | |
| 2025.12.30 | Round 5: Williams, Simon K - Herzwurm, Robert | 5.8 | 2025.12.30 Herzwurm, Robert (4668570) (2047) | 1 | 96.70% | 1. d4 Nf6 2. Bg5 Ne4 3. h4 c5 | |
| 2025.12.30 | Round 4: Deuer, Marius - Williams, Simon K | 4.3 | 2025.12.30 Deuer, Marius (16236432) (2475) | 0 | 89.80% | 1. d4 e6 2. c4 f5 3. g3 Nf6 | |
| 2025.12.29 | Round 3: Williams, Simon K - Demac, Elias | 3.11 | 2025.12.29 Demac, Elias (1505807) (2230) | 1 | 89.60% | 1. d4 f5 2. Bf4 Nf6 3. e3 d6 | |
| 2025.12.29 | Round 2: Lau, Lut Yin Luke - Williams, Simon K | 2.9 | 2025.12.29 Lau, Lut Yin Luke (6002226) (2243) | ½ | 97.50% | 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 Yoon, Jacob D (446076) (2165) | 1 | 91.10% | 1. c4 Nf6 2. Nc3 e6 3. e4 c5 | |
| 2025.12.25 | Round 8: Williams, Simon K - Hagner, Bennet | 8.1 | 2025.12.25 Hagner, Bennet (16224477) (2451) | ½ | 96.50% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2025.12.04 | Icelandic team chess championship premier league | 1.1 | 2025.12.04 Chasin, Nico (30908477) (2512) | 0 | - | 1. e4 e6 2. d4 d5 3. Nd2 Nf6 | |
| 2025.11.16 | Icelandic team chess championship premier league | 5.21 | 2025.11.16 Briem, Benedikt (2315432) (2222) | 1 | 95.70% | 1. d4 Nf6 2. Nf3 e6 3. c4 d5 | |
| 2025.11.15 | Icelandic team chess championship premier league | 4.12 | 2025.11.15 Johannesson, Ingvar Thor (2301490) (2258) | ½ | 94.10% | 1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 | |
| 2025.11.15 | Icelandic team chess championship premier league | 3.12 | 2025.11.15 Thorhallsson, Simon (2310090) (2177) | 1 | 93.90% | 1. d4 Nf6 2. Bg5 d5 3. Nd2 Nbd7 | |
| 2025.11.14 | Icelandic team chess championship premier league | 2.21 | 2025.11.14 Ragnarsson, Dagur (2304058) (2369) | 1 | 93.80% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 | |
| 2025.11.02 | Round 2: Bottazzi, Ulysse - Williams, Simon K | 2.26 | 2025.11.02 Bottazzi, Ulysse (45102988) (2402) | ½ | 96.60% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2025.11.01 | Round 1: Williams, Simon K - Hariharan, Shambavi | 1.30 | 2025.11.01 Hariharan, Shambavi (488160) (1988) | 1 | 98.50% | 1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 | |
| 2025.10.24 | Round 6: Smeets, Jan - Williams, Simon K | 6.37 | 2025.10.24 Smeets, Jan (1007246) (2562) | ½ | 98.60% | 1. d4 e6 2. e4 d5 3. exd5 exd5 | |
| 2025.10.22 | Round 4: Movsesian, Sergei - Williams, Simon K | 4.25 | 2025.10.22 Movsesian, Sergei (310204) (2600) | 0 | 90.00% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 | |
| 2025.10.20 | Round 2: Gelfand, Boris - Williams, Simon K | 2.1 | 2025.10.20 Gelfand, Boris (2805677) (2636) | 0 | 87.30% | 1. Nf3 f5 2. g3 Nf6 3. Bg2 d5 | |
| 2025.06.14 | 2025 FIDE World Blitz Team Championship Pool C | 12.26 | 2025.06.14 Derakhshani, Borna (12518450) (2286) | 1 | - | 1. e4 c5 2. b4 cxb4 3. a3 b3 | |
| 2025.06.14 | 2025 FIDE World Blitz Team Championship Pool C | 9.22 | 2025.06.14 Camacho Collados, Marcos (2266237) (2340) | 0 | 80.40% | 1. e4 d5 2. exd5 c6 3. d4 Nf6 | |
| 2025.06.14 | 2025 FIDE World Blitz Team Championship Pool C | 8.3 | 2025.06.14 Yakubboev, Nodirbek (14203987) (2563) | 0 | 86.80% | 1. e4 e6 2. Qe2 c5 3. g3 Nc6 | |
| 2025.06.14 | 2025 FIDE World Blitz Team Championship Pool C | 6.15 | 2025.06.14 Bluebaum, Matthias (24651516) (2618) | 0 | - | 1. d4 e6 2. c4 f5 3. Nc3 Nf6 | |
| 2025.06.14 | 2025 FIDE World Blitz Team Championship Pool C | 4.8 | 2025.06.14 Kiremitciyan, Ari (6373445) (2156) | 1 | 86.60% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2025.06.14 | 2025 FIDE World Blitz Team Championship Pool C | 3.32 | 2025.06.14 Gurel, Ediz (44507356) (2494) | 1 | 97.10% | 1. e4 e6 2. d4 d5 3. Nd2 Nf6 | |
| 2025.06.13 | Round 11: Amilal Munkhdalai - Williams, Simon K | 11.56 | 2025.06.13 Amilal Munkhdalai (4903250) (2341) | 0 | 89.20% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 | |
| 2025.06.13 | Round 10: Williams, Simon K - Pichot, Alan | 10.37 | 2025.06.13 Pichot, Alan (110973) (2564) | 0 | 81.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2025.06.13 | Round 9: Hansen, Eric - Williams, Simon K | 9.7 | 2025.06.13 Hansen, Eric (2606771) (2582) | 0 | 87.70% | 1. e4 g6 2. d4 Bg7 3. Nf3 d6 | |
| 2025.06.12 | Round 8: Bilguun, Sumiya - Williams, Simon K | 8.8 | 2025.06.12 Bilguun, Sumiya (4901541) (2438) | ½ | 93.70% | 1. e4 e6 2. d4 d5 3. Bd3 c5 | |
| 2025.06.12 | Round 7: Williams, Simon K - Zhakshylykov, Erzhan | 7.32 | 2025.06.12 Zhakshylykov, Erzhan (13804111) (2235) | 1 | 90.70% | 1. d4 Nf6 2. Bg5 d5 3. Nd2 c5 | |
| 2025.06.12 | Round 6: Reimanis, Ritvars - Williams, Simon K | 6.14 | 2025.06.12 Reimanis, Ritvars (11602988) (2331) | 1 | 94.40% | 1. d4 e6 2. Nf3 f5 3. g3 Nf6 | |
| 2025.06.12 | Round 5: Jacobsen, Mikkel Manosri - Williams, Simon K | 5.20 | 2025.06.12 Jacobsen, Mikkel Manosri (1444514) (2169) | 0 | 91.80% | 1. d4 e6 2. Nf3 f5 3. Bf4 Nf6 | |
| 2025.06.11 | 2025 FIDE World Rapid Team Championschip matches 11-18 | 4.25 | 2025.06.11 Momunaliev, Ruslan (13812211) (2070) | ½ | 95.10% | 1. e4 e6 2. d4 d5 3. Nd2 Nf6 | |
| 2025.06.11 | 2025 FIDE World Rapid Team Championship matches 19-26 | 3.19 | 2025.06.11 Skytte, Rasmus (1404210) (2412) | 1 | 94.80% | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2025.06.11 | 2025 FIDE World Rapid Team Championschip matches 11-18 | 2.25 | 2025.06.11 Kogan, Arthur (2800802) (2455) | ½ | 82.20% | 1. d4 d5 2. c4 e6 3. Nc3 Be7 | |
| 2025.06.11 | 2025 FIDE World Rapid Team Championship matches 19-26 | 1.7 | 2025.06.11 Vaidyanathan, Adithya (495450) (2147) | 0 | - | 1. d4 e6 2. c4 f5 3. Nf3 Nf6 | |
| 2025.05.10 | Power Solutions Arctic Chess NGP 2026 | 7.1 | 2025.05.10 Urkedal, Frode Olav Olsen (1506102) (2569) | ½ | 92.70% | 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ | |
| 2025.05.05 | Round 11: Willow, Jonah B - Williams, Simon K | 11.19 | 2025.05.05 Willow, Jonah B (438804) (2478) | 1 | 95.80% | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2025.05.04 | Round 10: Williams, Simon K - Alsina Leal, Daniel | 10.17 | 2025.05.04 Alsina Leal, Daniel (2252627) (2488) | 0 | 93.20% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2025.05.03 | Round 9: Banerjee, Supratit - Williams, Simon K | 9.27 | 2025.05.03 Banerjee, Supratit (2410079) (2312) | ½ | 93.90% | 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 | |
| 2025.04.15 | Reykjavik Open 2025 | 9.31 | 2025.04.15 Petersen, Marcel (12935670) (2185) | ½ | 97.80% | 1. e4 c5 2. Nf3 e6 3. g3 d5 | |
| 2025.04.14 | Reykjavik Open 2025 | 8.31 | 2025.04.14 Roubert, Emile (680311) (2050) | 1 | 93.60% | 1. d4 d5 2. Nf3 e6 3. e3 Nf6 | |
| 2025.04.13 | Reykjavik Open 2025 | 7.31 | 2025.04.13 Borne, Felix (551039915) (2225) | 0 | 83.00% | 1. Nf3 f5 2. g3 Nf6 3. Bg2 e6 | |
| 2025.04.13 | Reykjavik Open 2025 | 6.31 | 2025.04.13 Priansh Das (45029946) (2262) | ½ | 94.60% | 1. d4 Nf6 2. Bg5 g6 3. Nf3 Bg7 | |
| 2025.04.12 | Reykjavik Open 2025 | 5.31 | 2025.04.12 Golis, Wiktor (21055874) (2293) | ½ | 78.30% | 1. d4 d5 2. c4 e6 3. Nf3 c6 | |
| 2025.04.11 | Reykjavik Open 2025 | 4.31 | 2025.04.11 Lu, Shanglei (8603332) (2618) | 0 | 83.40% | 1. d4 Nf6 2. Nf3 d5 3. c4 e6 | |
| 2025.04.10 | Reykjavik Open 2025 | 3.31 | 2025.04.10 Arun, Nitish (2524201) (2004) | 1 | 80.80% | 1. d4 e6 2. c4 f5 3. g3 Nf6 | |
| 2025.04.10 | Reykjavik Open 2025 | 2.31 | 2025.04.10 Dauth, Benjamin (4688104) (2228) | 1 | 98.40% | 1. d4 Nf6 2. Nf3 g6 3. Nc3 Bg7 | |
| 2025.04.09 | Reykjavik Open 2025 | 1.31 | 2025.04.09 Ravi Krishna G (25707817) (2100) | 1 | 97.00% | 1. d4 e6 2. c4 f5 3. a3 Nf6 | |
| 2025.04.06 | Round 8: Williams, Simon K - Rendle, Thomas E | 8.33 | 2025.04.06 Rendle, Thomas E (408760) (2378) | 1 | 96.40% | 1. Nf3 d5 2. d4 Nf6 3. c4 c6 | |
| 2025.04.05 | Round 7: Ledger, Andrew J - Williams, Simon K | 7.33 | 2025.04.05 Ledger, Andrew J (400610) (2345) | 1 | 96.60% | 1. c4 e6 2. Nf3 d5 3. d4 Nf6 | |
| 2025.01.26 | Round 4: Williams, Simon K - Price, Gwilym | 4.20 | 2025.01.26 Price, Gwilym (443980) (2220) | 1 | 93.70% | 1. f4 c5 2. Nf3 g6 3. e4 Bg7 | |
| 2025.01.25 | Round 3: Taylor, Martin R - Williams, Simon K | 3.36 | 2025.01.25 Taylor, Martin R (407836) (2354) | 1 | - | 1. d4 e6 2. Nf3 f5 3. g3 Nf6 | |
| 2024.11.24 | Round 2: Williams, Simon K - Csonka, Balazs | 2.11 | 2024.11.24 Csonka, Balazs (742910) (2476) | 0 | 91.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2024.11.23 | Round 1: Badacsonyi, Stanley - Williams, Simon K | 1.27 | 2024.11.23 Badacsonyi, Stanley (486973) (2289) | 1 | 93.10% | 1. d4 e6 2. c4 f5 3. g3 Nf6 | |
| 2024.08.04 | Round 9: Williams, Simon K - Hebden, Mark L | 9.9 | 2024.08.04 Hebden, Mark L (400084) (2385) | ½ | 95.10% | 1. c4 g6 2. Nc3 Bg7 3. g3 d6 | |
| 2024.08.03 | Round 8: Golding, Alex - Williams, Simon K | 8.12 | 2024.08.03 Golding, Alex (427241) (2383) | 1 | 98.90% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2024.08.02 | Round 7: Williams, Simon K - Sivanandan, Bodhana | 7.18 | 2024.08.02 Sivanandan, Bodhana (497592) (2185) | 1 | 90.20% | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 | |
| 2024.08.01 | Round 6: Pert, Richard G - Williams, Simon K | 6.16 | 2024.08.01 Pert, Richard G (404748) (2415) | ½ | 95.70% | 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 | |
| 2024.07.31 | Round 5: Williams, Simon K - Richardson, John R | 5.10 | 2024.07.31 Richardson, John R (401617) (2299) | 0 | 92.80% | 1. c4 c6 2. Nf3 d5 3. e3 Nf6 | |
| 2024.07.30 | Round 4: Balaji, Aaravamudhan - Williams, Simon K | 4.9 | 2024.07.30 Balaji, Aaravamudhan (436224) (2316) | ½ | 96.60% | 1. d4 e6 2. c4 f5 3. g3 Nf6 | |
| 2024.07.29 | Round 3: Williams, Simon K - Yao, Lan | 3.10 | 2024.07.29 Yao, Lan (8610835) (2325) | ½ | 95.10% | 1. d4 Nf6 2. Bf4 d5 3. e3 c5 | |
| 2024.07.28 | Round 2: Kalavannan, Koby - Williams, Simon K | 2.11 | 2024.07.28 Kalavannan, Koby (425753) (2265) | ½ | 98.60% | 1. d4 e6 2. e4 d5 3. exd5 exd5 | |
| 2024.07.27 | Round 1: Williams, Simon K - Badacsonyi, Stanley | 1.12 | 2024.07.27 Badacsonyi, Stanley (486973) (2178) | 1 | 97.90% | 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 | |
| 2024.05.06 | Round 11: Williams, Simon K - Makkar, Rajat | 2024.05.06 Makkar, Rajat (36016810) (2453) | 0 | 93.20% | 1. d4 d5 2. c4 c6 3. cxd5 cxd5 | ||
| 2024.05.05 | Round 10: Royal, Shreyas - Williams, Simon K | 2024.05.05 Royal, Shreyas (448869) (2463) | 0 | 92.80% | 1. d4 e6 2. c4 b6 3. Nf3 Bb7 | ||
| 2024.05.04 | Round 9: Williams, Simon K - Olson, Hamish | 2024.05.04 Olson, Hamish (2404257) (2373) | 0 | 83.50% | 1. Nf3 d5 2. e3 Nf6 3. c4 e6 | ||
| 2023.05.01 | 4NCL Division 1 2022-2023 | 11.18 | 2023.05.01 Kilpatrick, Callum (414425) (2413) | 1 | 94.60% | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 | |
| 2023.04.30 | 4NCL Division 1 2022-2023 | 10.10 | 2023.04.30 Alsina Leal, Daniel (2252627) (2520) | 1 | 96.00% | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2023.04.29 | 4NCL Division 1 2022-2023 | 9.18 | 2023.04.29 Moreby, James (427756) (2400) | ½ | 95.80% | 1. Nf3 c5 2. e3 Nc6 3. c4 e5 | |
| 2023.04.03 | Reykjavik Open 2023 | 8.44 | 2023.04.03 Dieu, Bruno (603759) (2219) | 1 | 91.20% | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2023.04.02 | Reykjavik Open 2023 | 7.44 | 2023.04.02 Kunz, Andre (24623652) (2140) | 1 | 89.30% | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 | |
| 2023.04.01 | Reykjavik Open 2023 | 6.44 | 2023.04.01 Sahithi, Varshini M (2262) | 0 | 88.90% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2023.04.01 | Reykjavik Open 2023 | 5.44 | 2023.04.01 Cornelisse, John (1008137) (2203) | 1 | 87.80% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 | |
| 2023.03.31 | Reykjavik Open | 4 | 2023.03.31 Can, Emre (6302181) (2600) | 0 | 87.90% | 1. e4 c5 2. c3 Nf6 3. e5 Nd5 | |
| 2023.03.30 | Reykjavik Open 2023 | 3.44 | 2023.03.30 Cieslak, Patryk (2207) | ½ | 94.60% | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 | |
| 2023.03.30 | Reykjavik Open 2023 | 2.44 | 2023.03.30 Rakhmangulova, Anastasiya (14117479) (2266) | 1 | 95.20% | 1. d4 d5 2. c4 c6 3. cxd5 cxd5 | |
| 2023.03.29 | Reykjavik Open 2023 | 1.44 | 2023.03.29 Kather, Yannick (12912085) (2137) | 1 | 97.40% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2023.03.19 | 4NCL Division 1 2022-2023 | 8.5 | 2023.03.19 Toma, Katarzyna (1119907) (2390) | 1 | 90.40% | 1. d4 Nf6 2. c4 g6 3. h4 Bg7 | |
| 2023.03.18 | 4NCL Division 1 2022-2023 | 7.19 | 2023.03.18 Lupulescu, Constantin (1207822) (2592) | ½ | 95.70% | 1. d4 g6 2. e4 Bg7 3. c4 d6 | |
| 2023.02.12 | 4NCL Division 1 2022-2023 | 6.1 | 2023.02.12 Delaney, Killian (2501570) (2334) | ½ | 89.30% | 1. e4 c5 2. Nf3 d6 3. c3 Nf6 | |
| 2023.02.11 | 4NCL Division 1 2022-2023 | 5.1 | 2023.02.11 Ansell, Simon T (402141) (2421) | ½ | 85.80% | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 | |
| 2023.02.03 | Airthings Masters Play-In | Champions Chess Tour | 2 | 2023.02.03 Malakhov, Vladimir (4120787) (2666) | 1 | 63.80% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 | |
| 2023.02.03 | Airthings Masters Play-In | Champions Chess Tour | 8 | 2023.02.03 Sjugirov, Sanan (4189302) (2543) | ½ | 81.20% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 Bf5 | |
| 2023.02.03 | Airthings Masters Play-In | Champions Chess Tour | 7 | 2023.02.03 Grandelius, Nils (1710400) (2649) | 0 | 89.80% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 | |
| 2023.02.03 | Airthings Masters Play-In | Champions Chess Tour | 9 | 2023.02.03 Paravyan, David (4194985) (2598) | 0 | 56.90% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 g6 | |
| 2023.02.03 | Airthings Masters Play-In | Champions Chess Tour | 1 | 2023.02.03 Perez Ponsa, Federico (117927) (2586) | 0 | 92.20% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 c5 | |
| 2023.02.03 | Airthings Masters Play-In | Champions Chess Tour | 4 | 2023.02.03 Yu, Yangyi (8603820) (2734) | 0 | 84.50% | 1. Nf3 f5 2. g3 Nf6 3. Bg2 d6 | |
| 2023.02.03 | Airthings Masters Play-In | Champions Chess Tour | 5 | 2023.02.03 Gascon Del Nogal, Jose Rafael (3902463) (2421) | 0 | 95.20% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 e6 | |
| 2023.02.03 | Airthings Masters Play-In | Champions Chess Tour | 3 | 2023.02.03 Preotu, Razvan (2613280) (2532) | 1 | 94.70% | 1. d4 d5 2. Nc3 Nf6 3. Bf4 c5 | |
| 2023.02.03 | Airthings Masters Play-In | Champions Chess Tour | 6 | 2023.02.03 Grover, Sahaj (5021103) (2492) | 1 | 93.10% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2023.01.15 | 4NCL Division 1 2022-2023 | 4.2 | 2023.01.15 Townsend, M Paul (402320) (2145) | ½ | 94.60% | 1. Nc3 d5 2. d4 Nf6 3. Bf4 c5 | |
| 2023.01.14 | 4NCL Division 1 2022-2023 | 3.2 | 2023.01.14 Jones, Steven A (419630) (2139) | 1 | 86.60% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| ????.??.?? | Goðinn 20th Anniversary Open | 6.2 | ????.??.?? Thorgeirsson, Jon Kristinn (2307731) (2264) | 1 | 94.90% | 1. Nc3 e6 2. e4 d5 3. exd5 exd5 | |
| ????.??.?? | Goðinn 20th Anniversary Open | 5.2 | ????.??.?? Thorhallsson, Throstur (2300109) (2393) | 1 | 94.20% | 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 | |
| ????.??.?? | Goðinn 20th Anniversary Open | 4.2 | ????.??.?? Thorfinnsson, Bragi (2300958) (2384) | ½ | 99.10% | 1. e4 e6 2. d4 d5 3. exd5 exd5 | |
| ????.??.?? | Goðinn 20th Anniversary Open | 3.4 | ????.??.?? Jonsson, Gauti Pall (2309092) (2124) | 1 | 92.20% | 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 | |
| ????.??.?? | Goðinn 20th Anniversary Open | 2.1 | ????.??.?? Thorhallsson, Simon (2310090) (2232) | ½ | 97.70% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| ????.??.?? | Goðinn 20th Anniversary Open | 1.1 | ????.??.?? Thorsteinsdottir, Hallgerdur (2302454) (1988) | 1 | 92.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| ????.??.?? | Reykjavik Open 2023 | 9.44 | ????.??.?? Fitzsimons, David (2501961) (2338) | ½ | 88.40% | 1. e4 c5 2. Nc3 a6 3. g3 Nc6 | |
| Round 9: Williams, Simon K - Boswell, Jacob Connor | 9.15 | Boswell, Jacob Connor (427110) (2278) | ½ | 94.90% | 1. e4 c5 2. Nf3 d6 3. g3 Nf6 | ||
| Round 8: Badacsonyi, Stanley - Williams, Simon K | 8.15 | Badacsonyi, Stanley (486973) (2309) | ½ | 95.50% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | ||
| Round 7: Williams, Simon K - Vijayakumar, Rishi | 7.14 | Vijayakumar, Rishi (2408953) (2310) | ½ | 98.60% | 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 | ||
| Round 6: Banerjee, Supratit - Williams, Simon K | 6.11 | Banerjee, Supratit (2410079) (2242) | 0 | 88.40% | 1. e4 e6 2. d4 d5 3. Nd2 Nf6 | ||
| Round 5: Williams, Simon K - Davies, Nigel R | 5.14 | Davies, Nigel R (404420) (2291) | 1 | 89.80% | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 | ||
| Round 4: Golding, James - Williams, Simon K | 4.21 | Golding, James (427250) (2176) | 1 | 94.60% | 1. d4 e6 2. c4 f5 3. a3 Nf6 | ||
| Round 3: Williams, Simon K - Jones, Steven A | 3.19 | Jones, Steven A (419630) (2185) | ½ | 89.30% | 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 | ||
| Round 2: Manmay Chopra - Williams, Simon K | 2.21 | Manmay Chopra (25649191) (2188) | ½ | 94.20% | 1. Nf3 d5 2. g3 Nc6 3. d4 Bg4 | ||
| Round 1: Williams, Simon K - Kovalskyi, Roman | 1.13 | Kovalskyi, Roman (14184214) (2180) | ½ | 96.20% | 1. b3 d5 2. Bb2 c5 3. e3 e6 |