Hadef, Jean Yves
Current rating: 1426
Record: 2-6-1
| Grand Prix Lyon 2010 (ROE limited) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 566 | Tribelhorn, Samuel (1513) | Draw 1-1 | +11463 |
| 2sealed | 682 | Ceresola, Frederic (1500) | Lost 0-2 | -171446 |
| 3sealed | 755 | Legrand, Patrick (1322) | Lost 1-2 | -201426 |
| average opponent: 1445record: 0-2-1 | new rating: 1426 | |||
| Grand Prix Paris 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 153 | Barthelemy, Sebastien (1500) | Lost 0-2 | -181482 |
| 2sealed | 396 | Jankowski, Denis (1367) | Lost 1-2 | -201462 |
| 3sealed | 389 | Zouhair, Yacin (1432) | Lost 1-2 | -191443 |
| 4sealed | 428 | Comte, Emmanuel (1446) | Won 2-0 | +181461 |
| 5sealed | 358 | Irion, Julien (1465) | Won 2-1 | +181479 |
| 6sealed | 208 | Ameeuw, Sebastien (1516) | Lost 1-2 | -171462 |
| average opponent: 1454record: 2-4 | new rating: 1462 | |||