Herbert Claessen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Gent op 24th | 07/14/2001 | 868 | Belgium |
| Antwerp Chess Event | 08/19/2000 | 1091 | Belgium |
| Bad Woerishofen op 15th | 03/??/1999 | 1241 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| C77 | Ruy Lopez, Morphy defence | 1 games |
| B56 | Sicilian | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| A13 | English opening | 1 games |
| A57 | Benko gambit | 1 games |
| C80 | Ruy Lopez, open (Tarrasch) defence | 1 games |


Belgium
Germany