GMMark Heimann
USA · FIDE ID 2028441 · 184 tournament games since 2022
Standard
2481
#44 in USA (active)
Rapid
2428
#46 in USA (active)
Blitz
2459
#47 in USA (active)
Score
61%
83 W · 60 D · 41 L
Opp. avg
2374
Last 50 games
Last game
2026-08-14
24th Int. Chess Tournament Spilimbergo 2026
Prep summary
- As White: 1.e4 in 46% of games (scores 65%), otherwise 1.d4 (32%).
- Against 1.e4: 1...e5 in 19 of 41 games (King's Pawn Game), scoring 34%.
- Against 1.d4: 1...d5 in 14 of 31 games (Queen's Pawn Game), scoring 57%.
- By opponent strength: 32% against higher-rated players, 73% against lower-rated.
Based on 184 over-the-board games (37 classical · 14 blitz · 5 rapid). 96 with White (64%), 88 with Black (59%).
Openings as White
First move
| 1.e4 | 44 | 65% |
| 1.d4 | 31 | 66% |
| 1.c4 | 11 | 50% |
| 1.Nf3 | 9 | 67% |
Most played
| Opening | Games | Score |
|---|---|---|
| Queen's Gambit Declined: Exchange Variation, Positional Variation | 3 | 50% |
| Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | 3 | 100% |
| Zukertort Opening | 3 | 67% |
| Italian Game: Classical Variation, Giuoco Pianissimo | 2 | 0% |
| English Opening: Agincourt Defense | 2 | 50% |
Openings as Black
Against 1.e4 (41 games)
| 1...e5 King's Pawn Game | 19 | 34% |
| 1...c5 Sicilian Defense | 8 | 75% |
| 1...e6 French Defense | 7 | 64% |
Against 1.d4 (31 games)
| 1...d5 Queen's Pawn Game | 14 | 57% |
| 1...Nf6 Indian Defense | 12 | 67% |
| 1...e6 Horwitz Defense | 4 | 100% |
Most played
| Opening | Games | Score |
|---|---|---|
| Ruy Lopez: Berlin Defense, Rio Gambit Accepted | 4 | 13% |
| Queen's Gambit Declined | 3 | 17% |
| Catalan Opening: Open Defense | 3 | 83% |
| Caro-Kann Defense: Two Knights Attack | 3 | 83% |
| French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | 2 | 50% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-08-14 | Moksh Amit Doshi (2372) 24th Int. Chess Tournament Spilimbergo 2026 · classical | L |
| 2026-08-13 | Cristhian Camilo Rios Gomez (2406) 24th Int. Chess Tournament Spilimbergo 2026 · classical | L |
| 2026-08-12 | Maximillian Lu (2427) 24th Int. Chess Tournament Spilimbergo 2026 · classical | ½ |
| 2026-08-11 | German Gonzalo Quirhuayo Chumbe (2397) 24th Int. Chess Tournament Spilimbergo 2026 · classical | W |
| 2026-08-10 | Lucas Fonseca Piccoli (2286) 24th Int. Chess Tournament Spilimbergo 2026 · classical | W |
| 2026-08-10 | Nathan Felipe Filgueiras (2399) 24th Int. Chess Tournament Spilimbergo 2026 · classical | L |
| 2026-08-09 | Gabriel Urbani (2292) 24th Int. Chess Tournament Spilimbergo 2026 · classical | W |
| 2026-08-08 | Claudio Emanuele Costantino (2178) 24th Int. Chess Tournament Spilimbergo 2026 · classical | W |
| 2026-07-04 | Boris Gelfand (2592) 2026 Naroditsky Memorial Rapid & Blitz | Blitz · blitz | L |
| 2026-07-04 | Andrew Tang (2553) 2026 Naroditsky Memorial Rapid & Blitz | Blitz · blitz | ½ |
Data: FIDE rating list (October 2026 list; national ranks count active players) and tournament games broadcast on Lichess since 2020 (open data, CC0). Results are matched to FIDE players by name or FIDE ID and may be incomplete. This page shows public chess results only. Is this you and you want the page removed? Email chessmoose1@gmail.com and we remove it.