Pierron, Gregory
Current rating: 1496
Record: 5-6
| Grand Prix Paris 2011 (MBS limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 21 | Fourmas, Romain (1493) | Won 2-1 | +181497 |
| 4sealed | 67 | Callens, Jeroen (1609) | Won 2-1 | +201517 |
| 5sealed | 35 | Dang, Martin (1777) | Lost 0-2 | -131504 |
| 6sealed | 74 | Estratti, Samuele (1835) | Won 2-0 | +241528 |
| 7sealed | 47 | Durand, Guillaume (1642) | Lost 0-2 | -161512 |
| 8sealed | 102 | Santos, Virgilio (1640) | Lost 1-2 | -161496 |
| average opponent: 1666record: 3-3 | new rating: 1496 | |||
| Grand Prix Paris 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 620 | Thieffine, Lionel (1500) | Won 2-0 | +181518 |
| 2sealed | 661 | Garnier, Jeremy (1518) | Won 2-1 | +181536 |
| 3sealed | 519 | L'Abbe, Pascal (1525) | Lost 1-2 | -181518 |
| 4sealed | 658 | Karafotis, Konstantinos (1383) | Lost 1-2 | -211497 |
| 5sealed | 726 | Brihaye, Yannick (1469) | Lost 0-2 | -181479 |
| average opponent: 1479record: 2-3 | new rating: 1479 | |||