Derek Harrison
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Adelaide Interclub | ??/??/2004 | 1164 |  Australia |
Most Played Openings as White
| ECO | Opening | Games |
| D02 | Queen's pawn game | 1 games |
| B06 | Robatsch (modern) defence | 1 games |
| D07 | Queen's Gambit Declined, Chigorin defence | 1 games |
| B13 | Caro-Kann, exchange variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C64 | Ruy Lopez, classical (Cordel) defence | 1 games |
| C37 | King's Gambit Accepted, Quaade gambit | 1 games |
| C35 | King's Gambit Accepted, Cunningham defence | 1 games |
