Siegbert Klerks
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| GER-ch Seniors 13th | 07/??/2001 | 581 | Germany |
| Ruhr-ch Seniors 5th | ??/??/1998 | 1421 | Germany |
| GER-chT Seniors | ??/??/1995 | 184 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| E94 | King's Indian, orthodox variation | 2 games |
| E51 | Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d5 | 1 games |
| D31 | Queen's Gambit Declined, 3.Nc3 | 1 games |
| A85 | Dutch with c4 & Nc3 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B07 | Pirc defence | 4 games |
| A03 | Bird's opening | 1 games |
| B08 | Pirc, classical (two knights) system | 1 games |
| A22 | English opening | 1 games |


Germany