Player profile
Heimann, Mark
Dossier
154 of 157 games analyzed.
Accuracy: 91.8%
Opened e4: 31/56Opened d4: 15/56Opened c4: 5/56Opened Nf3: 5/56
Castled kingside: 82Same-side castling: 70Opposite-side castling: 15Did not castle: 14Castled queenside: 14
Played in the center: 29Played on the kingside: 27Played on the queenside: 23Fianchettoed queenside: 21Fianchettoed kingside: 18
Active pieces: 85Initiated exchanges: 75Space advantage: 70Sacrificed material: 66Isolated pawn: 48Kept the bishop pair: 48Backward pawn: 47Missed tactics: 17Avoided exchanges: 16Played gambits: 12
Openings
Click "+" to add that group to the games list below. Multiple groups can be added at once.
As White 58 games 29W 17D 12L
Sicilian Defense 12 games 5W 4D 3L
Najdorf Variation 3 games 1W 1D 1L
English Attack
1 game
0W
0D
1L
(unspecified)
1 game
0W
1D
0L
Adams Attack
1 game
1W
0D
0L
Moscow Variation 2 games 1W 1D 0L
(unspecified)
1 game
0W
1D
0L
Main Line
1 game
1W
0D
0L
French Variation 2 games 2W 0D 0L
Normal
1 game
1W
0D
0L
Westerinen Attack
1 game
1W
0D
0L
Alapin Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Taimanov Variation 1 game 0W 0D 1L
Bastrikov Variation
1 game
0W
0D
1L
Classical Variation 1 game 0W 1D 0L
Sozin Attack
1 game
0W
1D
0L
Kan Variation 1 game 1W 0D 0L
Modern Variation
1 game
1W
0D
0L
Four Knights Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Queen's Gambit Declined 6 games 3W 1D 2L
Ragozin Defense 2 games 1W 0D 1L
(unspecified)
2 games
1W
0D
1L
Exchange Variation 2 games 1W 0D 1L
Positional Variation
1 game
0W
0D
1L
Reshevsky Variation
1 game
1W
0D
0L
Traditional Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Harrwitz Attack 1 game 1W 0D 0L
Fianchetto Defense
1 game
1W
0D
0L
English Opening 5 games 3W 1D 1L
Agincourt Defense 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Great Snake Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
King's English Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Anglo-Indian Defense 1 game 0W 1D 0L
Anti-Anti-Grünfeld
1 game
0W
1D
0L
Symmetrical Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Ruy Lopez 5 games 5W 0D 0L
Morphy Defense 3 games 3W 0D 0L
Classical Defense Deferred
1 game
1W
0D
0L
Arkhangelsk Variation
1 game
1W
0D
0L
Neo-Arkhangelsk Variation
1 game
1W
0D
0L
Exchange Variation 1 game 1W 0D 0L
Gligoric Variation
1 game
1W
0D
0L
Open 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
French Defense 5 games 2W 2D 1L
Classical Variation 2 games 2W 0D 0L
Burn Variation, Morozevich Line
1 game
1W
0D
0L
(unspecified)
1 game
1W
0D
0L
St. George Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Winawer Variation 1 game 0W 0D 1L
Delayed Exchange Variation
1 game
0W
0D
1L
Steinitz Variation 1 game 0W 1D 0L
Boleslavsky Variation
1 game
0W
1D
0L
King's Indian Defense 3 games 2W 1D 0L
Orthodox Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Semi-Averbakh System 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Normal Variation 1 game 1W 0D 0L
Rare Defenses
1 game
1W
0D
0L
Italian Game 2 games 0W 0D 2L
Classical Variation 2 games 0W 0D 2L
Giuoco Pianissimo
2 games
0W
0D
2L
Scotch Game 2 games 0W 1D 1L
Schmidt Variation 2 games 0W 1D 1L
(unspecified)
2 games
0W
1D
1L
Bogo-Indian Defense 2 games 1W 1D 0L
Vitolins Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Wade-Smyslov Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Caro-Kann Defense 2 games 1W 0D 1L
Endgame Offer 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
Nimzo-Indian Defense 2 games 0W 1D 1L
Normal Variation 2 games 0W 1D 1L
Ragozin Variation
1 game
0W
0D
1L
(unspecified)
1 game
0W
1D
0L
Zukertort Opening 2 games 0W 2D 0L
(unspecified) 2 games 0W 2D 0L
(unspecified)
2 games
0W
2D
0L
Nimzowitsch Defense 1 game 1W 0D 0L
Kennedy Variation 1 game 1W 0D 0L
Linksspringer Variation
1 game
1W
0D
0L
King's Indian Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Pirc Defense 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Indian Defense, with e3 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Réti Opening 1 game 0W 1D 0L
Anglo-Slav Variation 1 game 0W 1D 0L
Gurevich System
1 game
0W
1D
0L
King's Pawn Game 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Petrov's Defense 1 game 0W 1D 0L
Classical Attack 1 game 0W 1D 0L
Marshall Variation
1 game
0W
1D
0L
Semi-Slav Defense 1 game 1W 0D 0L
Normal Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Slav Defense 1 game 1W 0D 0L
Quiet Variation 1 game 1W 0D 0L
Schallopp Defense
1 game
1W
0D
0L
Queen's Indian Defense 1 game 0W 1D 0L
Fianchetto Variation 1 game 0W 1D 0L
Check Variation, Intermezzo Line
1 game
0W
1D
0L
As Black 54 games 24W 13D 16L
Ruy Lopez 8 games 3W 2D 3L
Morphy Defense 4 games 3W 0D 1L
Anderssen Variation
1 game
1W
0D
0L
Norwegian Variation
1 game
1W
0D
0L
Modern Steinitz Defense, Siesta Variation
1 game
1W
0D
0L
Cozio Defense
1 game
0W
0D
1L
Berlin Defense 3 games 0W 1D 2L
Rio Gambit Accepted
2 games
0W
0D
2L
Anti-Berlin Variation
1 game
0W
1D
0L
Closed 1 game 0W 1D 0L
Flohr System
1 game
0W
1D
0L
Queen's Gambit Declined 8 games 3W 1D 4L
(unspecified) 3 games 0W 1D 2L
(unspecified)
3 games
0W
1D
2L
Exchange Variation 2 games 1W 0D 1L
Positional Variation
2 games
1W
0D
1L
Ragozin Defense 2 games 1W 0D 1L
Alekhine Variation
2 games
1W
0D
1L
Modern Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Caro-Kann Defense 6 games 3W 3D 0L
Two Knights Attack 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
Endgame Offer 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Maróczy Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Exchange Variation 1 game 0W 1D 0L
Rubinstein Variation
1 game
0W
1D
0L
Tartakower Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
English Opening 5 games 2W 3D 0L
Agincourt Defense 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
King's English Variation 2 games 1W 1D 0L
Kramnik-Shirov Counterattack
1 game
0W
1D
0L
Three Knights System
1 game
1W
0D
0L
Anglo-Indian Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
French Defense 4 games 2W 0D 2L
Tarrasch Variation 2 games 1W 0D 1L
Open System, Euwe-Keres Line
2 games
1W
0D
1L
Paulsen Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Advance Variation 1 game 0W 0D 1L
Euwe Variation
1 game
0W
0D
1L
Nimzo-Indian Defense 3 games 2W 0D 1L
Classical Variation 3 games 2W 0D 1L
(unspecified)
1 game
0W
0D
1L
Romanishin Gambit
1 game
1W
0D
0L
Noa Variation
1 game
1W
0D
0L
Catalan Opening 3 games 2W 1D 0L
Open Defense 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Indian Defense 3 games 2W 0D 1L
Dzindzi-Indian Defense 2 games 2W 0D 0L
(unspecified)
2 games
2W
0D
0L
Anti-Nimzo-Indian 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Queen's Pawn Game 2 games 1W 1D 0L
Accelerated London System 1 game 0W 1D 0L
Steinitz Countergambit
1 game
0W
1D
0L
London System 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Four Knights Game 2 games 0W 0D 2L
Spanish Variation 1 game 0W 0D 1L
Symmetrical Variation
1 game
0W
0D
1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Bogo-Indian Defense 2 games 1W 1D 0L
Retreat Variation 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
Italian Game 2 games 1W 0D 1L
Classical Variation 1 game 1W 0D 0L
Greco Gambit, Modern Line
1 game
1W
0D
0L
Giuoco Pianissimo 1 game 0W 0D 1L
Normal
1 game
0W
0D
1L
Wade Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Zukertort Opening 1 game 0W 1D 0L
Black Mustang Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
King's Indian Attack, with e6 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Sicilian Defense 1 game 1W 0D 0L
Delayed Alapin Variation 1 game 1W 0D 0L
with e6
1 game
1W
0D
0L
King's Indian Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Slav Defense 1 game 0W 0D 0L
Modern Line 1 game 0W 0D 0L
(unspecified)
1 game
0W
0D
0L
Blunders Top 4 of 499
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 157 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.08.14 | Spilimbergo Master 2026 | 8.22 | 2026.08.14 Moksh Amit Doshi (25064967) (2372) | 0 | 84.10% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2026.08.13 | Spilimbergo Master 2026 | 7.13 | 2026.08.13 Rios Gomez, Cristhian Camilo (4403940) (2406) | 0 | 82.80% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2026.08.12 | Spilimbergo Master 2026 | 6.11 | 2026.08.12 Lu, Maximillian (2096242) (2427) | ½ | 97.20% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 | |
| 2026.08.11 | Spilimbergo Master 2026 | 5.15 | 2026.08.11 Quirhuayo Chumbe, German Gonzalo (3813509) (2397) | 1 | 96.20% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.08.10 | Spilimbergo Master 2026 | 4.30 | 2026.08.10 Piccoli, Lucas Fonseca (2190788) (2286) | 1 | 96.30% | 1. c4 e6 2. Nc3 Bb4 3. Qc2 Nf6 | |
| 2026.08.10 | Spilimbergo Master 2026 | 3.13 | 2026.08.10 Filgueiras, Nathan Felipe (2188562) (2399) | 0 | 86.20% | 1. e4 e6 2. d4 d5 3. Nd2 c5 | |
| 2026.08.09 | Spilimbergo Master 2026 | 2.18 | 2026.08.09 Urbani, Gabriel (2830138) (2292) | 1 | 97.10% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.08.08 | Spilimbergo Master 2026 | 1.22 | 2026.08.08 Costantino, Claudio Emanuele (28505697) (2178) | 1 | 96.30% | 1. e4 e6 2. d4 d5 3. Nc3 h6 | |
| 2026.07.04 | Round 11: Gelfand, Boris - Heimann, Mark | 11.10 | 2026.07.04 Gelfand, Boris (2805677) (2592) | 0 | 85.60% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | |
| 2026.07.04 | Round 10: Heimann, Mark - Tang, Andrew | 10.8 | 2026.07.04 Tang, Andrew (2059630) (2553) | ½ | - | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | |
| 2026.07.04 | Round 9: Hess, Robert - Heimann, Mark | 9.23 | 2026.07.04 Hess, Robert (2022036) (2557) | 1 | 94.70% | 1. c4 e6 2. g3 d5 3. Bg2 Nc6 | |
| 2026.07.04 | Round 4: Heimann, Mark - Sindarov, Javokhir | 4.10 | 2026.07.04 Sindarov, Javokhir (14205483) (2680) | ½ | 85.60% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2026.07.04 | Round 2: Heimann, Mark - Sevian, Samuel | 2.6 | 2026.07.04 Sevian, Samuel (2040506) (2677) | 0 | 86.90% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.07.03 | Round 7: Sukandar, Irine Kharisma - Heimann, Mark | 7.26 | 2026.07.03 Sukandar, Irine Kharisma (7101937) (2355) | ½ | 87.30% | 1. d4 d5 2. Bf4 c5 3. e3 Nc6 | |
| 2026.07.03 | Round 6: Heimann, Mark - Ramirez Vido, Robert Yorisan | 6.21 | 2026.07.03 Ramirez Vido, Robert Yorisan (3513823) (2087) | 1 | 91.50% | 1. c4 g6 2. Nc3 Bg7 3. d4 c5 | |
| 2026.07.03 | Round 4: Heimann, Mark - Sindarov, Javokhir | 4.8 | 2026.07.03 Sindarov, Javokhir (14205483) (2718) | 0 | 90.70% | 1. e4 c5 2. c3 e6 3. d4 Nf6 | |
| 2026.07.03 | Round 3: Belenkaya, Dina - Heimann, Mark | 3.17 | 2026.07.03 Belenkaya, Dina (24142654) (2168) | 1 | 96.70% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2026.07.03 | Round 2: Heimann, Mark - Sevian, Samuel | 2.5 | 2026.07.03 Sevian, Samuel (2040506) (2666) | 0 | 78.10% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2026.03.02 | American Cup Blitz | 9.24 | 2026.03.02 Putnam, Liam (30938279) (2445) | ½ | 95.80% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2026.03.02 | American Cup Blitz | 8.19 | 2026.03.02 Akobian, Varuzhan (13300580) (2520) | 0 | 85.60% | 1. d4 d6 2. Nf3 Bg4 3. e3 Nf6 | |
| 2026.03.02 | American Cup Blitz | 7.26 | 2026.03.02 Atwell, Rose (30951011) (2254) | 1 | 92.30% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2026.03.02 | American Cup Blitz | 6.24 | 2026.03.02 Wang, Tianqi (2063824) (2396) | ½ | 91.20% | 1. Nf3 Nc6 2. c4 e5 3. d3 f5 | |
| 2026.03.02 | American Cup Blitz | 5.28 | 2026.03.02 Sukandar, Irine Kharisma (7101937) (2277) | 1 | 89.80% | 1. d4 Nf6 2. c4 e6 3. Nc3 d5 | |
| 2026.03.02 | American Cup Blitz | 4.24 | 2026.03.02 Bilych, Oleksii (14156504) (2206) | 0 | 44.70% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2026.03.02 | American Cup Blitz | 3.28 | 2026.03.02 Boros, Denes (722340) (2479) | 1 | 96.60% | 1. e4 Nc6 2. d4 e5 3. d5 Nce7 | |
| 2026.03.02 | American Cup Blitz | 2.21 | 2026.03.02 Kiolbasa, Oliwia (1154613) (2285) | 0 | 88.20% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2026.03.01 | Saint Louis Masters | 9.26 | 2026.03.01 Wang, Tianqi (2063824) (2331) | ½ | 97.20% | 1. e4 e6 2. d4 a6 3. Nc3 d5 | |
| 2026.02.28 | Saint Louis Masters | 8.25 | 2026.02.28 Narayanan, Samrug (30914051) (2438) | 0 | 86.20% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | |
| 2026.02.28 | Saint Louis Masters | 7.24 | 2026.02.28 Atwell, Rose (30951011) (2337) | ½ | 94.70% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | |
| 2026.02.27 | Saint Louis Masters | 6.26 | 2026.02.27 Antova, Gabriela (2915235) (2168) | ½ | 88.80% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2026.02.27 | Saint Louis Masters | 5.29 | 2026.02.27 Caglar, Sila (6364063) (2215) | 1 | 96.30% | 1. e4 c6 2. Nf3 d5 3. d3 g6 | |
| 2026.02.26 | Saint Louis Masters | 4.28 | 2026.02.26 Gueci, Tea (872342) (2138) | 0 | 91.20% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2026.02.26 | Saint Louis Masters | 3.30 | 2026.02.26 Kavutskiy, Kostya (2026384) (2330) | 1 | 89.10% | 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 | |
| 2026.02.25 | Saint Louis Masters | 2.26 | 2026.02.25 Rosen, Eric (2032562) (2377) | 0 | 89.20% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2026.02.25 | Saint Louis Masters | 1.30 | 2026.02.25 Apaar Saxena (25937219) (2263) | 0 | 87.20% | 1. d4 d5 2. c4 e6 3. Nf3 c6 | |
| 2026.02.23 | American Cup Blitz | 1.1 | 2026.02.23 Caruana, Fabiano (2020009) (2769) | 0 | 78.40% | 1. e4 c6 2. Nf3 d5 3. d3 e6 | |
| 2026.01.04 | Round 5: Rajaram, Rohan - Heimann, Mark | 5.4 | 2026.01.04 Rajaram, Rohan (30940729) (2291) | 1 | 93.80% | 1. d4 e6 2. c4 Nf6 3. g3 Bb4+ | |
| 2026.01.04 | Round 3: Heimann, Mark - Mahajan, Rushaan | 3.3 | 2026.01.04 Mahajan, Rushaan (30934222) (2189) | 1 | 93.70% | 1. e4 c6 2. d4 d5 3. e5 c5 | |
| 2026.01.03 | Round 2: Virtanen, Teemu - Heimann, Mark | 2.2 | 2026.01.03 Virtanen, Teemu (509850) (2276) | ½ | 95.20% | 1. c4 e6 2. Nc3 d5 3. e3 Nf6 | |
| 2026.01.03 | Round 1: Heimann, Mark - Nanugonda, Vishva | 1.3 | 2026.01.03 Nanugonda, Vishva (30961335) (2090) | 1 | 90.60% | 1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 | |
| 2026.01.01 | Round 4: Aleksey Sorokin - Heimann, Mark | 4.1 | 2026.01.01 Aleksey Sorokin | 0 | 89.10% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2025.07.31 | Round 5: Heimann, Mark - Jacobson, Aaron | 5.4 | 2025.07.31 Jacobson, Aaron (2089912) (2354) | 1 | 85.10% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2025.07.30 | Round 4: Cao, Qingfeng - Heimann, Mark | 4.2 | 2025.07.30 Cao, Qingfeng (8627568) (2394) | ½ | 97.80% | 1. d4 Nf6 2. c4 e6 3. g3 d5 | |
| 2025.07.29 | Round 3: Heimann, Mark - Rosh Jain | 3.2 | 2025.07.29 Rosh Jain (25789465) (2322) | 1 | 96.00% | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 | |
| 2025.07.29 | Round 2: Ketzetzis, Georgios - Heimann, Mark | 2.7 | 2025.07.29 Ketzetzis, Georgios (4215206) (2290) | 1 | 91.00% | 1. e4 c6 2. d4 d5 3. f3 e6 | |
| 2025.07.28 | Round 1: Heimann, Mark - Liashkevich, Lizaveta | 1.10 | 2025.07.28 Liashkevich, Lizaveta (13518658) (2204) | 1 | - | 1. Nf3 d5 2. e3 e6 3. b3 Nf6 | |
| 2024.12.30 | Round 9: Liu, Yan - Heimann, Mark | 9.7 | 2024.12.30 Liu, Yan (8608962) (2548) | ½ | 98.30% | 1. c4 e5 2. Nc3 Bb4 3. Nd5 Be7 | |
| 2024.12.29 | Round 8: Heimann, Mark - Zhou, Jianchao | 8.5 | 2024.12.29 Zhou, Jianchao (8603537) (2572) | ½ | 96.90% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.12.29 | 34th Annual North American Open | 7.9 | 2024.12.29 Prabhu, Naveen (30939372) (2121) | 1 | 95.40% | 1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 | |
| 2024.12.28 | Round 6: Burke, John M - Heimann, Mark | 6.2 | 2024.12.28 Burke, John M (2070901) (2573) | 0 | 87.00% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | |
| 2024.12.28 | 34th Annual North American Open | 5.10 | 2024.12.28 Amburgy, Ryan (30924820) (2239) | 1 | 96.80% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2024.12.27 | Round 4: Park, Evan - Heimann, Mark | 4.5 | 2024.12.27 Park, Evan (30931142) (2375) | ½ | 98.50% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2024.12.27 | Round 3: Heimann, Mark - Tang, Zoey | 3.4 | 2024.12.27 Tang, Zoey (30952530) (2306) | ½ | 93.10% | 1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 | |
| 2024.12.27 | 34th Annual North American Open | 2.10 | 2024.12.27 Yim, Sung Ho (2062020) (2309) | 1 | 96.20% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.10.06 | Round 5: Heimann, Mark - Arutla, Aditya | 5.4 | 2024.10.06 Arutla, Aditya (30961998) (2248) | ½ | 78.50% | 1. c4 c6 2. Nf3 d5 3. e3 Nf6 | |
| 2024.10.06 | Round 4: Heimann, Mark - Wongso, Steve | 4.4 | 2024.10.06 Wongso, Steve (30939020) (2216) | 1 | 94.70% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2024.10.05 | Round 3: Rajaram, Rohan - Heimann, Mark | 3.4 | 2024.10.05 Rajaram, Rohan (30940729) (2063) | 1 | 95.30% | 1. d4 e6 2. c4 Nf6 3. Nf3 a6 | |
| 2024.10.05 | Round 2: Heimann, Mark - Guo, Ethan | 2.4 | 2024.10.05 Guo, Ethan (30976359) (2190) | ½ | 83.90% | 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2024.10.04 | Round 1: Atwell, Rose - Heimann, Mark | 1.4 | 2024.10.04 Atwell, Rose (30951011) (2185) | 1 | 95.70% | 1. e4 c5 2. Nf3 e6 3. c3 d5 | |
| 2024.08.30 | Round 8: Webb, Laurence E - Heimann, Mark | 8.16 | 2024.08.30 Webb, Laurence E (402389) (2237) | 0 | 92.70% | 1. d4 Nf6 2. Nf3 e6 3. c4 d5 | |
| 2024.08.28 | Round 6: Valle Luis, Leo - Heimann, Mark | 6.15 | 2024.08.28 Valle Luis, Leo (54577187) (2263) | 0 | 85.30% | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2024.08.27 | Round 5: Heimann, Mark - Piorun, Kacper | 5.3 | 2024.08.27 Piorun, Kacper (1130420) (2603) | 0 | 90.00% | 1. e4 e6 2. d4 d5 3. Nc3 Bb4 | |
| 2024.08.26 | Round 4: Heimann, Mark - Serrano Batova, Vicent | 4.11 | 2024.08.26 Serrano Batova, Vicent (24598380) (2207) | 1 | 94.70% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2024.08.25 | Round 3: Argiroudis, Stamatis - Heimann, Mark | 3.15 | 2024.08.25 Argiroudis, Stamatis (4202210) (2263) | 1 | 98.00% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 | |
| 2024.08.24 | Round 2: Heimann, Mark - Gomez Navais, Marcal | 2.17 | 2024.08.24 Gomez Navais, Marcal (24585505) (2138) | 1 | 89.90% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2024.08.13 | Round 7: Grigoryan, Karen H. - Heimann, Mark | 7.6 | 2024.08.13 Grigoryan, Karen H. (13301004) (2567) | 0 | 91.50% | 1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 | |
| 2024.08.12 | Round 5: Zhou, Jianchao - Heimann, Mark | 5.5 | 2024.08.12 Zhou, Jianchao (8603537) (2576) | ½ | 91.00% | 1. c4 e6 2. Nf3 d5 3. g3 Nc6 | |
| 2024.08.11 | Round 3: Heimann, Mark - Burke, John M | 3.4 | 2024.08.11 Burke, John M (2070901) (2570) | 0 | 88.70% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2024.08.10 | 11th Annual Washington International - Championship | 8 | 2024.08.10 Zeltsan, Joseph (30932980) (2417) | 1 | 97.90% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2024.08.10 | 11th Annual Washington International - Championship | 6 | 2024.08.10 Paragua, Megan Althea (30973007) (2061) | 1 | 98.50% | 1. e4 c5 2. Nf3 e6 3. b3 Nc6 | |
| 2024.08.10 | 11th Annual Washington International - Championship | 4 | 2024.08.10 Gutla, Aryan (30945968) (2274) | 1 | 95.30% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2024.06.28 | Round 5: Heimann, Mark - Ganesan, Vikrant | 5.1 | 2024.06.28 Ganesan, Vikrant (30979463) (2022) | 1 | 94.60% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 | |
| 2024.06.28 | Round 4: Yan, Nathan - Heimann, Mark | 4.1 | 2024.06.28 Yan, Nathan (30966230) (2200) | 1 | 97.50% | 1. e4 e6 2. d4 d5 3. Nd2 c5 | |
| 2024.06.28 | Round 3: Heimann, Mark - Yang, Vian | 3.1 | 2024.06.28 Yang, Vian (30971306) (1821) | 1 | 100.00% | ||
| 2024.06.28 | Round 2: Rajaram, Rohan - Heimann, Mark | 2.1 | 2024.06.28 Rajaram, Rohan (30940729) (2063) | 1 | 98.20% | 1. d4 e6 2. c4 a6 3. Nf3 Nf6 | |
| 2024.06.28 | Round 1: Heimann, Mark - Suarez, Sebastian | 1.1 | 2024.06.28 Suarez, Sebastian (30979080) (2161) | 1 | 94.20% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2024.05.27 | Round 9: Heimann, Mark - Rahul Srivatshav P | 2024.05.27 Rahul Srivatshav P (25059653) (2452) | ½ | 99.40% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | ||
| 2024.05.27 | Round 8: Plat, Vojtech - Heimann, Mark | 2024.05.27 Plat, Vojtech (325740) (2494) | ½ | 94.70% | 1. e4 c6 2. d4 d5 3. exd5 cxd5 | ||
| 2024.05.26 | Round 7: Bick, Gabriel James Koop - Heimann, Mark | 2024.05.26 Bick, Gabriel James Koop (2084058) (2373) | 1 | 97.20% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | ||
| 2024.05.26 | Round 6: Heimann, Mark - Stearman, Josiah | 2024.05.26 Stearman, Josiah (2062496) (2467) | 0 | 77.80% | 1. d4 d5 2. c4 e6 3. Nc3 Bb4 | ||
| 2024.05.25 | Round 5: Heimann, Mark - Sheng, Joshua | 2024.05.25 Sheng, Joshua (2057360) (2463) | ½ | 92.90% | 1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 | ||
| 2024.05.25 | Round 4: Georgiev, Vladimir - Heimann, Mark | 2024.05.25 Georgiev, Vladimir (2903024) (2392) | 1 | 97.30% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | ||
| 2024.05.24 | Round 3: Heimann, Mark - Sivakumar, Shaashwath | 2024.05.24 Sivakumar, Shaashwath (30912156) (2304) | 1 | 96.50% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| 2024.05.24 | Round 2: Chinni, Rishabh - Heimann, Mark | 2024.05.24 Chinni, Rishabh (30966060) (2121) | 1 | 90.80% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2024.05.24 | Round 1: Heimann, Mark - Arutla, Aditya | 2024.05.24 Arutla, Aditya (30961998) (2183) | ½ | 96.50% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | ||
| 2024.05.12 | Round 5: Heimann, Mark - Tang, Dylan | 2024.05.12 Tang, Dylan (30972531) (2286) | 1 | 90.10% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2024.05.12 | Round 4: Iinuma, Paul Y - Heimann, Mark | 2024.05.12 Iinuma, Paul Y (2031809) (2200) | 1 | 53.60% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | ||
| 2024.05.12 | Round 3: Heimann, Mark - Atwell, Rose | 2024.05.12 Atwell, Rose (30951011) (2283) | ½ | 95.10% | 1. Nf3 d5 2. e3 Nf6 3. c4 c6 | ||
| 2024.05.11 | Round 2: Suarez, Sebastian - Heimann, Mark | 2024.05.11 Suarez, Sebastian (30979080) (2185) | 1 | 85.70% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2024.05.11 | Round 1: Heimann, Mark - Yan, Nathan | 2024.05.11 Yan, Nathan (30966230) (2202) | 1 | 95.10% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2024.04.21 | Round 5: Sivakumar, Shaaketh - Heimann, Mark | 2024.04.21 Sivakumar, Shaaketh (30940176) (2366) | 1 | 96.00% | 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 | ||
| 2024.04.21 | Round 4: Heimann, Mark - Atwell, Rose | 2024.04.21 Atwell, Rose (30951011) (2279) | ½ | 96.80% | 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 | ||
| 2024.04.03 | Menorca Open 2024 | 02 | 2024.04.03 Pichot, Alan (110973) (2644) | 0 | 91.80% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2024.04.01 | Round 9: Xiao, Tong(QD) - Heimann, Mark | 2024.04.01 Xiao, Tong(QD) (8622388) (2484) | ½ | 96.10% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | ||
| 2024.03.31 | Round 8: Heimann, Mark - Lazaro Pujol, Abel | 2024.03.31 Lazaro Pujol, Abel (24596728) (2308) | 1 | 97.80% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | ||
| 2024.03.31 | Round 7: Alekseenko, Kirill - Heimann, Mark | 2024.03.31 Alekseenko, Kirill (4135539) (2650) | 0 | 86.60% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2024.03.30 | Round 6: Heimann, Mark - Makhnev, Denis | 2024.03.30 Makhnev, Denis (13707647) (2516) | 1 | 96.70% | 1. d4 d5 2. Nf3 e6 3. c4 c6 | ||
| 2024.03.29 | Round 5: Heimann, Mark - Basso, Pier Luigi | 2024.03.29 Basso, Pier Luigi (866970) (2503) | 1 | 95.40% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2024.03.29 | Round 4: Ivanchuk, Vasyl - Heimann, Mark | 2024.03.29 Ivanchuk, Vasyl (14100010) (2625) | ½ | 88.60% | 1. e4 c6 2. d4 d5 3. Nd2 dxe4 | ||
| 2024.03.10 | Round 5: Heimann, Mark - Atwell, Rose | 2024.03.10 Atwell, Rose (30951011) (2285) | 1 | 97.80% | 1. Nf3 d5 2. c4 c6 3. e3 Nf6 | ||
| 2024.03.10 | Round 4: Guo, Ethan - Heimann, Mark | 2024.03.10 Guo, Ethan (30976359) (2227) | ½ | 86.50% | 1. e4 c6 2. Nc3 d5 3. Nf3 Nf6 | ||
| 2024.03.10 | Round 3: Yan, Nathan - Heimann, Mark | 2024.03.10 Yan, Nathan (30966230) (2185) | 1 | 94.20% | 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 | ||
| 2024.03.09 | Round 1: Arutla, Aditya - Heimann, Mark | 2024.03.09 Arutla, Aditya (30961998) (2239) | * | 100.00% | 1. c4 c6 2. d4 d5 3. Nf3 Nf6 | ||
| Round 9: Avsar, Gediz - Heimann, Mark | 9.7 | Avsar, Gediz (26313405) (2228) | ½ | 98.60% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| Round 8: Durak, Can - Heimann, Mark | 8.3 | Durak, Can (44552971) (2445) | 0 | - | |||
| Round 7: Heimann, Mark - Drozdowski, Kacper | 7.2 | Drozdowski, Kacper (1136720) (2450) | ½ | 95.70% | 1. d4 d5 2. c4 e6 3. Nc3 h6 | ||
| Round 6: Aaryan Varshney - Heimann, Mark | 6.1 | Aaryan Varshney (45048975) (2454) | ½ | 92.50% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | ||
| 2023.11.06 | Round 9: Robby Kevlishvili - Mark Heimann | 2023.11.06 Robby Kevlishvili (2535) | 0 | 93.00% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | ||
| 2023.11.06 | Round 8: Mark Heimann - Jakub Fus | 2023.11.06 Jakub Fus (2462) | ½ | 93.30% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | ||
| 2023.11.05 | Round 7: Kostya Kavutskiy - Mark Heimann | 2023.11.05 Kostya Kavutskiy (2394) | 1 | 97.30% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | ||
| 2023.11.05 | Round 6: Mark Heimann - Josiah Stearman | 2023.11.05 Josiah Stearman (2451) | 0 | 91.70% | 1. c4 c5 2. Nf3 Nc6 3. Nc3 g6 | ||
| 2023.11.04 | Round 5: Alexander Fishbein - Mark Heimann | 2023.11.04 Alexander Fishbein (2382) | 1 | 96.90% | 1. c4 e5 2. Nc3 Nc6 3. Nf3 f5 | ||
| 2023.11.04 | Round 4: Mark Heimann - Luka Budisavljevic | 2023.11.04 Luka Budisavljevic (2515) | ½ | 93.90% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | ||
| 2023.11.03 | Round 3: Bach Ngo - Mark Heimann | 2023.11.03 Bach Ngo (2367) | 0 | 91.50% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 | ||
| 2023.11.03 | Round 2: Mark Heimann - Ekin Baris Ozenir | 2023.11.03 Ekin Baris Ozenir (2391) | 1 | 96.20% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | ||
| 2023.11.02 | Round 1: Joshua Posthuma - Mark Heimann | 2023.11.02 Joshua Posthuma (2445) | ½ | 97.60% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | ||
| 2023.09.04 | Round 8: Mark Heimann - Cemil Can Ali Marandi | 2023.09.04 Cemil Can Ali Marandi (2559) | ½ | 96.60% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | ||
| 2023.09.04 | Round 7: Mikhail Antipov - Mark Heimann | 2023.09.04 Mikhail Antipov (2601) | 0 | 91.00% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | ||
| 2023.09.03 | Round 6: Mark Heimann - Harshit Raja | 2023.09.03 Harshit Raja (2522) | ½ | 96.10% | 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 | ||
| 2023.09.03 | Round 5: Giorgi Margvelashvili - Mark Heimann | 2023.09.03 Giorgi Margvelashvili (2534) | ½ | 96.30% | 1. Nf3 Nf6 2. c4 e6 3. g3 a6 | ||
| 2023.09.02 | Round 4: Mark Heimann - Henry Deng | 2023.09.02 Henry Deng (2308) | 1 | 93.90% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | ||
| 2023.09.02 | Round 3: Jiangwei Yu - Mark Heimann | 2023.09.02 Jiangwei Yu (2271) | 1 | 98.20% | 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 | ||
| 2023.09.01 | Round 2: Mark Heimann - Viktor Matviishen | 2023.09.01 Viktor Matviishen (2550) | 0 | 89.00% | 1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 | ||
| 2023.09.01 | Round 1: Niko Pompe - Mark Heimann | 2023.09.01 Niko Pompe (2121) | 1 | 96.60% | 1. e4 c6 2. Nc3 d5 3. Nf3 Nf6 | ||
| 2023.08.06 | Round 9: Vladimir Georgiev - Mark Heimann | 2023.08.06 Vladimir Georgiev | ½ | 90.10% | 1. Nf3 Nf6 2. g3 d5 3. Bg2 Bf5 | ||
| 2023.08.06 | Round 8: Mark Heimann - Sam Schmakel | 2023.08.06 Sam Schmakel | 1 | 90.80% | 1. d4 g6 2. e4 Bg7 3. Nf3 d6 | ||
| 2023.08.05 | Round 7: G Peter Arnaudov - Mark Heimann | 2023.08.05 G Peter Arnaudov | 1 | 87.20% | 1. d4 Nf6 2. Nf3 e6 3. Bg5 h6 | ||
| 2023.08.05 | Round 6: Mark Heimann - Terry Luo | 2023.08.05 Terry Luo | 1 | 96.60% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | ||
| 2023.08.04 | Round 5: Harshid Kunka - Mark Heimann | 2023.08.04 Harshid Kunka | 0 | 89.80% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2023.08.04 | Round 4: Mark Heimann - Nikola Mitkov | 2023.08.04 Nikola Mitkov | 0 | 89.80% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | ||
| 2023.08.03 | Round 3: Aaron Jacobson - Mark Heimann | 2023.08.03 Aaron Jacobson | ½ | 90.50% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | ||
| 2023.08.03 | Round 2: Mark Heimann - Ezra Chambers | 2023.08.03 Ezra Chambers | 1 | 86.90% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | ||
| 2023.08.02 | Round 1: Mark Heimann - Maximillian Lu | 2023.08.02 Maximillian Lu | ½ | 96.60% | 1. d4 Nf6 2. c4 b6 3. f3 Nc6 | ||
| 2023.07.04 | 1000GM Summer Championship | 7 | 2023.07.04 Omya Vidyarthi | 1 | 94.50% | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 | |
| 2023.07.03 | 1000GM Summer Championship | 5 | 2023.07.03 Daniel Mieles | ½ | 95.20% | 1. c4 e5 2. g3 c6 3. Nf3 e4 | |
| 2023.07.02 | 1000GM Summer Championship | 4 | 2023.07.02 Kate Lee Yesun | 1 | 95.60% | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 | |
| 2023.07.02 | 1000GM Summer Championship | 3 | 2023.07.02 Rohit Bhatta | 1 | 94.20% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | |
| 2023.07.01 | 1000GM Summer Championship | 2 | 2023.07.01 Rishabh Gokhale | * | 49.20% | 1. d4 Nf6 2. c4 c5 3. Nf3 g6 | |
| 2023.07.01 | 1000GM Summer Championship | 1 | 2023.07.01 Vedant Maheshwari (25146955) | ½ | 92.00% | 1. d4 d5 2. Nc3 Nf6 3. Bf4 c5 | |
| 2023.06.18 | Las Vegas National Open 2023 | 8 | 2023.06.18 Teddie Wen | 1 | 96.40% | 1. e4 c6 2. d4 d5 3. e5 c5 | |
| 2023.06.17 | Las Vegas National Open 2023 | 6 | 2023.06.17 Aryan Gutla | 0 | 86.40% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2023.06.17 | Las Vegas National Open 2023 | 5 | 2023.06.17 Alexander Costello | ½ | 78.40% | 1. Nf3 d5 2. e3 Nf6 3. c4 e6 | |
| 2023.06.16 | Las Vegas National Open 2023 | 4 | 2023.06.16 Semen Khanin | ½ | 81.80% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | |
| 2023.06.16 | Las Vegas National Open 2023 | 3 | 2023.06.16 Evan Ai | ½ | 92.00% | 1. e4 e6 2. d4 d5 3. Nd2 Be7 | |
| 2023.06.15 | Las Vegas National Open 2023 | 2 | 2023.06.15 Henry Deng | 1 | 90.10% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2023.06.15 | Round 1: Sho Glashausser - Mark Heimann | 2023.06.15 Sho Glashausser | 1 | 93.70% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 | ||
| 2023.06.11 | Round 9: Mateusz Bartel - Mark Heimann | 2023.06.11 Mateusz Bartel | 0 | 86.50% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | ||
| 2023.06.11 | Round 8: Mark Heimann - Arturs Neiksans | 2023.06.11 Arturs Neiksans | 1 | 95.50% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | ||
| 2023.06.08 | Round 3: Mark Heimann - Awonder Liang | 2023.06.08 Awonder Liang | 0 | 89.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | ||
| 2023.02.26 | Round 9: Justin Wang - Mark Heimann | 2023.02.26 Justin Wang | ½ | 98.00% | 1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 | ||
| 2023.02.26 | Round 8: Mark Heimann - Robert Shlyakhtenko | 2023.02.26 Robert Shlyakhtenko | 0 | 90.50% | 1. c4 e5 2. g3 c6 3. d4 e4 | ||
| 2023.02.25 | Round 6: Mark Heimann - Luka Budisavljevic | 2023.02.25 Luka Budisavljevic | 1 | 97.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 a6 | ||
| 2023.02.24 | Round 5: Joseph Levine - Mark Heimann | 2023.02.24 Joseph Levine | * | 94.20% | 1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 | ||
| 2023.02.24 | Round 4: Mark Heimann - Carlos Sandoval Mercado | 2023.02.24 Carlos Sandoval Mercado | 1 | 88.60% | 1. d4 d5 2. c4 e6 3. Nc3 Bb4 | ||
| 2023.02.24 | Round 2: Josiah Stearman - Mark Heimann | 2023.02.24 Josiah Stearman | ½ | 95.90% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | ||
| 2023.02.24 | Round 3: Mark Heimann - Kostya Kavutskiy | 2023.02.24 Kostya Kavutskiy | ½ | 82.00% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | ||
| 2023.02.24 | Round 1: Mark Heimann - Mikaelyan Arman | 2023.02.24 Mikaelyan Arman | * | 91.60% | 1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 |