Petitjean, Guillaume
Current rating: 1500
| Grand Prix Paris 2008 (ALA limited) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 794 | Demoinerie, Luke (1500) | Won 2-0 | +181533 |
| 2sealed | 641 | Zorzi, Giulio (1625) | Lost 0-2 | -171516 |
| 3sealed | 755 | Siracusa, Bruno (1541) | Won 2-0 | +191535 |
| 4sealed | 720 | Larson, Andrew (1494) | Lost 0-2 | -191516 |
| 5sealed | 786 | Martineau, Jerome (1507) | Lost 1-2 | -181498 |
| 6sealed | 741 | Bangert, Uli (1432) | Won 2-1 | +171515 |
| 7sealed | 678 | Geiger, Frederic (1696) | Lost 1-2 | -151500 |
| top | average opponent: 1542record: 3-4 | new rating: 1500 | ||
| Grand Prix Toulouse 2006 (DIS limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 159 | Landoas, Alexandre (1500) | Won 2-0 | +181538 |
| 2sealed | 107 | Gray, Steven (1488) | Lost 0-2 | -191519 |
| 3sealed | 168 | Abbiati, Franck (1498) | Won 2-0 | +171536 |
| 4sealed | 141 | Cabos-Duhamel, Lilian (1521) | Lost 0-2 | -181518 |
| 5sealed | 197 | Carcauzon, Jerome (1451) | Won 2-0 | +171535 |
| 6sealed | 153 | Pedroso, Carlos (1429) | Lost 1-2 | -201515 |
| top | average opponent: 1481record: 3-3 | new rating: 1515 | ||
| Grand Prix Bilbao 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 526 | Le Quere, Aurelien (1517) | Won 2-0 | +181518 |
| 2extended | 396 | Honorato, Ramon (1516) | Lost 0-2 | -181500 |
| 3extended | 507 | Ochoa, Aritz (1514) | Won 2-1 | +191519 |
| 4extended | 481 | Santana, Andoni (1517) | Lost 1-2 | -191500 |
| 5extended | 467 | Llano, Enrique (1574) | Lost 0-2 | -161484 |
| 6extended | 500 | Lago, Juan Luis (1484) | Won 2-0 | +181502 |
| 7extended | 463 | Pedroso, Carlos (1471) | Won 2-0 | +171519 |
| 8extended | 425 | Kirstein, Ivan (1565) | Lost 0-2 | -171502 |
| 9extended | 430 | Camacho, Miguel (1502) | Won 2-1 | +181520 |
| top | average opponent: 1518record: 5-4 | new rating: 1520 | ||