Debacker, Jonathan
Current rating: 1434
Record: 2-6
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 738 | Parchanowicz, Maxime (1413) | Won 2-0 | +181463 |
| 2standard | 679 | Becks, Tim (1499) | Lost 1-2 | -181445 |
| 3standard | 800 | Woida, Michael (1500) | Won 2-1 | +191464 |
| 4standard | 757 | Vantuch, Matej (1472) | Lost 0-2 | -181446 |
| 5standard | 793 | Koller, Tobias (1768) | Lost 1-2 | -121434 |
| average opponent: 1530record: 2-3 | new rating: 1434 | |||
| Grand Prix Paris 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 244 | Payet, Patrice (1499) | Lost 0-2 | -181482 |
| 2sealed | 383 | Germain, Cedric (1464) | Lost 0-2 | -181464 |
| 3sealed | 407 | Vandecasteele, Clotaire (1433) | Lost 0-2 | -191445 |
| average opponent: 1465record: 0-3 | new rating: 1445 | |||