Nelson Rivera
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Arlington CC-ch | 05/22/1999 | 717 | United States |
| USA Armed Forces-ch | ??/??/1990 | 0 | United States |
| NATO-ch | ??/??/1989 | 355 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| A48 | King's Indian, East Indian defence | 1 games |
| D94 | Gruenfeld, 5.e3 | 1 games |
| D05 | Queen's pawn game | 1 games |
| D04 | Queen's pawn game | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| A05 | Reti opening | 1 games |
| A36 | English, symmetrical variation | 1 games |
| B00 | King's pawn opening | 1 games |
| C10 | French, Paulsen variation | 1 games |


United States
Germany