Boonsil, Jedsada
Current rating: 1497
Record: 4-4
| Grand Prix Bangkok 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 42 | Sarpphaitoon, Suppachai (1465) | Lost 0-2 | -191481 |
| 2sealed | 130 | Sng, Eugene Yee Gin (1468) | Lost 0-2 | -181463 |
| 3sealed | 153 | Rattanapan, Manit (1462) | Won 2-0 | +181481 |
| 4sealed | 152 | Song, Ji Young (1396) | Won 2-1 | +171498 |
| 5sealed | 144 | Wongmuk, Pongsuwan (1442) | Won 2-0 | +171515 |
| 6sealed | 101 | Chaovarindr, Thirawat (1509) | Won 2-1 | +171532 |
| 7sealed | 51 | Ueatrakunpanich, Adisa (1540) | Lost 0-2 | -171515 |
| 8sealed | 81 | Vatanakulcharas, Panpa (1513) | Lost 0-2 | -181497 |
| average opponent: 1474record: 4-4 | new rating: 1497 | |||