Derek JE Harris
Derek JE Harris Repertoire with White pieces
| ECO | Opening | Games |
| D37 | Queen's Gambit Declined, 4.Nf3 | 4 games |
| B07 | Pirc defence | 2 games |
| B23 | Sicilian, closed | 2 games |
| A26 | English, closed system | 1 games |
Derek JE Harris Repertoire with Black pieces
| ECO | Opening | Games |
| A42 | Modern defence, Averbakh system | 2 games |
| B57 | Sicilian, Sozin, not Scheveningen | 1 games |
| B75 | Sicilian, dragon, Yugoslav attack | 1 games |
| D35 | Queen's Gambit Declined, 3...Nf6 | 1 games |


