Jef Claes
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Tessenderlo CC-ch 0607 | 09/21/2006 | 1665 | Belgium |
| Limburg op g/60 | 01/11/2007 | 1646 | Belgium |
| Tessenderlo CC-ch | 01/??/2006 | 1672 | Belgium |
| Tessenderlo CC-ch | ??/??/2005 | 1415 | Belgium |
Most Played Openings as White
| ECO | Opening | Games |
| D60 | Queen's Gambit Declined, Orthodox defence | 2 games |
| D06 | Queen's Gambit | 2 games |
| D53 | Queen's Gambit Declined, 4.Bg5 Be7 | 2 games |
| D11 | Queen's Gambit Declined Slav, 3.Nf3 | 2 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C02 | French, advance variation | 3 games |
| D32 | Queen's Gambit Declined, Tarrasch defence | 2 games |
| C01 | French, exchange variation | 2 games |
| A26 | English, closed system | 1 games |


Belgium