United States
FIDE ID:
Mark A Heimann
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 1000GM Nov GM 2023 | 11/02/2023 | 2439 |  United States |
| Silicon Valley Fall | 08/31/2023 | 2308 | United States |
| 1000GM Aug GM 2023 | 08/02/2023 | 2395 | United States |
| National Open 2023 | 06/14/2023 | 2233 | United States |
Mark A Heimann Repertoire with White pieces (most played)
| ECO | Opening | Games |
| A07 | Reti, King's Indian attack (Barcza system) | 3 games |
| B12 | Caro-Kann defence | 3 games |
| D37 | Queen's Gambit Declined, 4.Nf3 | 3 games |
| A13 | English opening | 2 games |
Mark A Heimann Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| A05 | Reti opening | 4 games |
| E11 | Bogo-Indian defence | 3 games |
| E15 | Queen's Indian, 4.g3 | 2 games |
| C67 | Ruy Lopez, Berlin defence, open variation | 2 games |
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