Ruben Oscar Watenberg
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Amistad op | 11/15/1999 | 0 |  Argentina |
| Municipalidad op | 09/22/1999 | 87 | Argentina |
| Chivilcoy Archa op | ??/??/1998 | 296 | Argentina |
| Chivilcoy CLP op | ??/??/1998 | 0 | Argentina |
Most Played Openings as White
| ECO | Opening | Games |
| B06 | Robatsch (modern) defence | 1 games |
| C67 | Ruy Lopez, Berlin defence, open variation | 1 games |
| C71 | Ruy Lopez, modern Steinitz defence | 1 games |
| C70 | Ruy Lopez | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B50 | Sicilian | 2 games |
| B15 | Caro-Kann defence | 1 games |
| D00 | Queen's pawn game | 1 games |
| B55 | Sicilian, Prins variation, Venice attack | 1 games |
