Joongjitdumrong, Pornp
Current rating: 1366
| Grand Prix Bangkok 2013 (DGM limited) | starting rating: 1394 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 197 | Jitthai, Teerapat (1500) | Lost 0-2 | -161378 |
| 2sealed | 278 | Sathaphonprasart, Chai (1482) | Won 2-0 | +201398 |
| 3sealed | 260 | Srisuparp, Setthavit (1501) | Lost 1-2 | -161382 |
| 4sealed | 335 | Popovic, Nico (1480) | Lost 0-2 | -161366 |
| top | average opponent: 1491record: 1-3 | new rating: 1366 | ||
| Grand Prix Bangkok 2009 (M10 limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 50 | Saowarattithada, Peamwut (1500) | Lost 1-2 | -171430 |
| 2sealed | 123 | Thampitee, Kitikun (1435) | Lost 1-2 | -181412 |
| 3sealed | 142 | Tonianse, Andranik (1448) | Lost 1-2 | -181394 |
| top | average opponent: 1461record: 0-3 | new rating: 1394 | ||
| Grand Prix Bangkok 2007 (LRW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 71 | Boonyanankij, Athip (1500) | Lost 0-2 | -181482 |
| 2sealed | 95 | Songkwamcharoen, Mongk (1482) | Won 2-1 | +181500 |
| 3sealed | 80 | Weerakitti, Supatip (1540) | Lost 0-2 | -171483 |
| 4sealed | 132 | Estacio, Reynerio (1475) | Lost 1-2 | -181465 |
| 5sealed | 128 | Chaitip, Supoj (1463) | Lost 1-2 | -181447 |
| top | average opponent: 1492record: 1-4 | new rating: 1447 | ||