| Game | Result | Opening | Date |
|---|---|---|---|
| Heimann, Mark (2487) – Moksh Amit Doshi (2372) | 0-1 | Italian Game: Classical Variation, Giuoco Pianissimo | 2026-08-14 |
| Rios Gomez, Cristhian Camilo (2406) – Heimann, Mark (2487) | 1-0 | Nimzo-Indian Defense: Classical Variation | 2026-08-13 |
| Heimann, Mark (2487) – Lu, Maximillian (2427) | 1/2-1/2 | Sicilian Defense: Moscow Variation | 2026-08-12 |
| Quirhuayo Chumbe, German Gonzalo (2397) – Heimann, Mark (2487) | 0-1 | Ruy Lopez: Morphy Defense, Anderssen Variation | 2026-08-11 |
| Filgueiras, Nathan Felipe (2399) – Heimann, Mark (2487) | 1-0 | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | 2026-08-10 |
| Heimann, Mark (2487) – Piccoli, Lucas Fonseca (2286) | 1-0 | English Opening: Agincourt Defense | 2026-08-10 |
| Heimann, Mark (2487) – Urbani, Gabriel (2292) | 1-0 | Ruy Lopez: Morphy Defense, Classical Defense Deferred | 2026-08-09 |
| Costantino, Claudio Emanuele (2178) – Heimann, Mark (2487) | 0-1 | French Defense: Paulsen Variation | 2026-08-08 |
| Heimann, Mark (2436) – Sevian, Samuel (2666) | 0-1 | Queen's Gambit Declined: Ragozin Defense | 2026-07-05 |
| Belenkaya, Dina (2168) – Heimann, Mark (2436) | 0-1 | Queen's Gambit Declined: Exchange Variation, Positional Variation | 2026-07-05 |
| Heimann, Mark (2411) – Tang, Andrew (2553) | 1/2-1/2 | Scotch Game: Schmidt Variation | 2026-07-04 |
| Gelfand, Boris (2592) – Heimann, Mark (2411) | 1-0 | Queen's Gambit Declined | 2026-07-04 |
| Heimann, Mark (2411) – Sevian, Samuel (2677) | 0-1 | Sicilian Defense: Najdorf Variation, English Attack | 2026-07-04 |
| Hess, Robert (2557) – Heimann, Mark (2411) | 0-1 | English Opening: Agincourt Defense | 2026-07-04 |
| Heimann, Mark (2411) – Sindarov, Javokhir (2680) | 1/2-1/2 | King's Indian Defense: Orthodox Variation | 2026-07-04 |
| Heimann, Mark (2436) – Sindarov, Javokhir (2718) | 0-1 | Sicilian Defense: Alapin Variation | 2026-07-03 |
| Sukandar, Irine Kharisma (2355) – Heimann, Mark (2436) | 1/2-1/2 | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | 2026-07-03 |
| Heimann, Mark (2436) – Ramirez Vido, Robert Yorisan (2087) | 1-0 | English Opening: Great Snake Variation | 2026-07-03 |
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