FIDE ID:
Mark A Heimann
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 34th Kavala Open 2025 | 07/28/2025 | 2309 |  Greece |
| 34th North American Open | 12/26/2024 | 2329 |  United States |
| Saint Louis Masters 2024 | 12/03/2024 | 2490 | United States |
| US Chess Masters 2024 | 11/27/2024 | 2373 | United States |
Mark A Heimann Opening Repertoire with White pieces
| ECO | Opening | Games |
| B40 | Sicilian defence | 5 games |
| D37 | Queen's Gambit Declined, 4.Nf3 | 4 games |
| C11 | French defence | 4 games |
| C02 | French, advance variation | 4 games |
Mark A Heimann Opening Repertoire with Black pieces
| ECO | Opening | Games |
| D38 | Queen's Gambit Declined, Ragozin variation | 5 games |
| A05 | Reti opening | 4 games |
| E10 | Queen's pawn game | 4 games |
| A07 | Reti, King's Indian attack (Barcza system) | 4 games |
