Thys Tuinstra
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Groningen SO-ON Mini op | 12/26/2001 | 1890 |  Netherlands |
| Groningen ABM op | ??/??/1999 | 286 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| B01 | Scandinavian (centre counter) defence | 1 games |
| C30 | King's gambit | 1 games |
| B21 | Sicilian, Grand Prix attack | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
