O. Pereiro
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Fuengirola Once-ch | 11/19/2005 | 680 | Spain |
| ESP-chT ONCE | 11/02/2003 | 547 | Spain |
Most Played Openings as White
| ECO | Opening | Games |
| D00 | Queen's pawn game | 2 games |
| A45 | Queen's pawn game | 2 games |
| D03 | Torre attack (Tartakower variation) | 1 games |
| E61 | King's Indian defence, 3.Nc3 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C41 | Philidor's defence | 1 games |
| D20 | Queen's gambit accepted | 1 games |
| B09 | Pirc, Austrian attack | 1 games |


Spain