Male
FIDE ID:
Stefan Mazur
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| TCh-HUN 2025-26 | 09/20/2025 | 2365 |  Hungary |
| TIPOS TCh-SVK 2025-26 | 11/08/2025 | 2276 |  Slovakia |
| TCh-AUT 2025-26 | 12/10/2025 | 2435 |  Austria |
| ch-SVK 2025 | 07/08/2025 | 2465 | Slovakia |
Most Played Openings as White
| ECO | Opening | Games |
| B90 | Sicilian, Najdorf | 17 games |
| B93 | Sicilian, Najdorf, 6.f4 | 14 games |
| B12 | Caro-Kann defence | 11 games |
| B40 | Sicilian defence | 11 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C45 | Scotch game | 15 games |
| C77 | Ruy Lopez, Morphy defence | 14 games |
| C55 | Two knights defence | 10 games |
| E62 | King's Indian, fianchetto variation | 9 games |
