Gregg Teehan
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| US op | ??/??/1995 | 425 |  United States |
| CalChess Season opener | ??/??/1993 | 219 | United States |
| Montreal St Jean | ??/??/1974 | 0 |  Canada |
Gregg Teehan Repertoire with White pieces (most played)
| ECO | Opening | Games |
| A01 | Nimzovich-Larsen attack | 3 games |
| B01 | Scandinavian (centre counter) defence | 1 games |
| B17 | Caro-Kann, Steinitz variation | 1 games |
| C16 | French, Winawer, advance variation | 1 games |
Gregg Teehan Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| B06 | Robatsch (modern) defence | 2 games |
| A37 | English, symmetrical variation | 1 games |
| A42 | Modern defence, Averbakh system | 1 games |
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