Sangpattarachai, Piyan
Current rating: 1504
Record: 3-3
| Grand Prix Bangkok 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 25 | Thongmee, Wikanes (1500) | Won 2-0 | +181518 |
| 2sealed | 53 | Jungsura, Worawit (1483) | Won 2-1 | +171535 |
| 3sealed | 6 | Blohon, Lukas (1736) | Lost 0-2 | -141521 |
| 4sealed | 135 | Kitcharoenpinyo, Worap (1520) | Lost 0-2 | -181503 |
| 5sealed | 130 | Leong, Jiti (1600) | Won 2-0 | +201523 |
| 6sealed | 117 | Yupanondh, Peeraporn (1470) | Lost 1-2 | -191504 |
| average opponent: 1552record: 3-3 | new rating: 1504 | |||