Thomas Sack
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Landesliga Ost1 0304 | 12/14/2003 | 1454 |  Germany |
| Mecklenburg-ch U20 | ??/??/1994 | 221 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| D07 | Queen's Gambit Declined, Chigorin defence | 1 games |
| D40 | Queen's Gambit Declined, Semi-Tarrasch defence | 1 games |
| D37 | Queen's Gambit Declined, 4.Nf3 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C65 | Ruy Lopez, Berlin defence | 1 games |
| A00 | Polish (Sokolsky) opening | 1 games |
| C41 | Philidor's defence | 1 games |
| D66 | Queen's Gambit Declined, Orthodox defence, Bd3 line | 1 games |
