J. Rivero
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Martinez Valle op2 | ??/??/1993 | 944 | Argentina |
| San Fernando op | ??/??/1993 | 1183 | Argentina |
| Olivos op | ??/??/1993 | 473 | Argentina |
| San Isidoro op | ??/??/1993 | 673 | Argentina |
Most Played Openings as White
| ECO | Opening | Games |
| E69 | King's Indian, fianchetto, classical main line | 2 games |
| D02 | Queen's pawn game | 2 games |
| E18 | Queen's Indian, old main line, 7.Nc3 | 2 games |
| B33 | Sicilian defence | 2 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D94 | Gruenfeld, 5.e3 | 4 games |
| C10 | French, Paulsen variation | 3 games |
| C02 | French, advance variation | 3 games |
| C01 | French, exchange variation | 2 games |


Argentina