Matthew D O'Hara
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Tampa op | 04/11/2003 | 631 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| C33 | King's gambit accepted | 2 games |
| B43 | Sicilian, Kan, 5.Nc3 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C49 | Four knights, double Ruy Lopez | 2 games |


United States