William Cornwall
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| US op | ??/??/1993 | 713 |  United States |
| USA-op | ??/??/1992 | 435 | United States |
| USA op | ??/??/1990 | 864 | United States |
| US op | 08/??/1989 | 737 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| A34 | English, symmetrical variation | 1 games |
| A10 | English opening | 1 games |
| A14 | English, Neo-Catalan declined | 1 games |
| A26 | English, closed system | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B09 | Pirc, Austrian attack | 2 games |
| B06 | Robatsch (modern) defence | 2 games |
| E93 | King's Indian, Petrosian system, main line | 1 games |
| B07 | Pirc defence | 1 games |
