Donald R Cotton
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| US op | ??/??/1995 | 425 |  United States |
| US op | ??/??/1993 | 713 | United States |
| USA-72ch | ??/??/1971 | 0 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| C16 | French, Winawer, advance variation | 1 games |
| C58 | two knights defence | 1 games |
| C54 | Giuoco Piano | 1 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C11 | French defence | 1 games |
| C54 | Giuoco Piano | 1 games |
| C63 | Ruy Lopez, Schliemann defence | 1 games |
| C44 | King's pawn game | 1 games |
