Gan, Jonathan
Current rating: 1411
Record: 7-13
| Grand Prix Bangkok 2007 (LRW limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 7 | Ishida, Itaru (1940) | Lost 0-2 | -101437 |
| 5sealed | 81 | Leung, Sze Lok (1687) | Lost 0-2 | -131424 |
| 6sealed | 64 | Petchgate, Warapot (1520) | Won 2-0 | +201444 |
| 7sealed | 54 | Sung, Morris Ming Che (1556) | Lost 1-2 | -161428 |
| 8sealed | 79 | Krishnakarn, Jakra (1502) | Lost 0-2 | -171411 |
| top | average opponent: 1641record: 1-4 | new rating: 1411 | ||
| Grand Prix Singapore 2007 (extended) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 75 | Koo, Andy (1465) | Won 2-0 | +171499 |
| 3extended | 44 | Fong, Clement Yu Mun (1533) | Lost 0-2 | -171482 |
| 4extended | 111 | Lau, Zhao Zhi (1543) | Lost 0-2 | -171465 |
| 5extended | 132 | Shi, Gan (1465) | Lost 1-2 | -181447 |
| top | average opponent: 1501record: 1-3 | new rating: 1447 | ||
| Grand Prix Kuala Lumpur 2006 (DIS limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 23 | New, Chee Wee (1483) | Lost 1-2 | -181481 |
| 3sealed | 103 | Lee, Andrew [MYS] (1553) | Lost 1-2 | -171464 |
| 4sealed | 125 | Koh, Julian (1417) | Won 2-1 | +171481 |
| 5sealed | 113 | Yahya, Mohd Yasir (1500) | Won 2-0 | +181499 |
| 6sealed | 78 | Tan, Sam (1515) | Lost 0-2 | -171482 |
| top | average opponent: 1494record: 2-3 | new rating: 1482 | ||
| Grand Prix Singapore 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 113 | Tan, Kek Chin (1500) | Lost 1-2 | -181482 |
| 2extended | 97 | New, Chee Wee (1482) | Won 2-1 | +181500 |
| 3extended | 80 | Hendrawan, Bernhard (1449) | Lost 0-2 | -191481 |
| 4extended | 155 | Li, chi lung (1484) | Won 2-0 | +181499 |
| 5extended | 124 | Xiao, Dennis (1500) | Won 2-1 | +181517 |
| 6extended | 102 | Chua, Wei Xiang (1507) | Lost 0-2 | -181499 |
| top | average opponent: 1487record: 3-3 | new rating: 1499 | ||