Male
FIDE ID:
Derek Clasby
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 53rd Annual World Open | 07/02/2025 | 2305 |  United States |
| 10th Washington Int 2023 | 08/12/2023 | 2284 | United States |
| US Chess Masters 2022 | 11/23/2022 | 2364 | United States |
| 9th Washington Int 2022 | 08/13/2022 | 2388 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| B34 | Sicilian, accelerated fianchetto, exchange variation | 1 games |
| B52 | Sicilian, Canal-Sokolsky attack, 3...Bd7 | 1 games |
| B18 | Caro-Kann, classical variation | 1 games |
| B30 | Sicilian defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| A45 | Queen's pawn game | 1 games |
| A15 | English, 1...Nf6 (Anglo-Indian defense) | 1 games |
| A49 | King's Indian, fianchetto without c4 | 1 games |
| D85 | Gruenfeld, exchange variation | 1 games |
