Tan, Ian Keng Huat
Current rating: 1553
Record: 19-16
| Grand Prix Singapore 2015 (modern) | starting rating: 1599 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 80 | Chan, Zhi Hung (1415) | Lost 0-2 | -211578 |
| 2modern | 317 | Grimsey, Robert (1482) | Won 2-1 | +161594 |
| 3modern | 369 | Loh, Chuan Han (1642) | Lost 0-2 | -171577 |
| 4modern | 488 | CHAN YONGHAO, KENDDRIC (1481) | Lost 1-2 | -201557 |
| 5modern | 461 | Shi, Zhenhao (1447) | Won 2-0 | +161573 |
| 6modern | 434 | How, Wai Chun (1482) | Lost 1-2 | -201553 |
| top | average opponent: 1491record: 2-4 | new rating: 1553 | ||
| Grand Prix Kuala Lumpur 2014 (THS limited) | starting rating: 1598 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 58 | Ong, Kok Seng (1725) | Lost 0-2 | -161582 |
| 2sealed | 356 | Wong, Nicholas Jonathan (1741) | Lost 1-2 | -151567 |
| 3sealed | 390 | Soon, Kenny (1415) | Won 2-1 | +151582 |
| 4sealed | 357 | Tan, Keng Heng Ivan (1481) | Won 2-0 | +161598 |
| 5sealed | 275 | Preece, Jasper (1516) | Won 2-1 | +171615 |
| 6sealed | 256 | Yap, Jason (1734) | Lost 0-2 | -161599 |
| top | average opponent: 1602record: 3-3 | new rating: 1599 | ||
| Grand Prix Singapore 2013 (RTR limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 154 | Hsi, Han Yin (1500) | Won 2-1 | +181521 |
| 2sealed | 132 | Ong, Desmond Wei Liang (1605) | Lost 0-2 | -161505 |
| 3sealed | 246 | Goh, Wee Thean (1498) | Won 2-1 | +181523 |
| 4sealed | 201 | Arumugum, Sasigaran (1389) | Won 2-0 | +151538 |
| 5sealed | 116 | Chen, Shao-Lun (1456) | Won 2-1 | +171555 |
| 6sealed | 46 | Heng, Chye Hwee (1766) | Won 2-1 | +221577 |
| 7sealed | 56 | Yang, Ting Hui (1674) | Won 2-1 | +191596 |
| 8sealed | 34 | Sun, Fang Zhou (1610) | Lost 0-2 | -171579 |
| 9sealed | 67 | Mior, Danial Z (1493) | Won 2-1 | +161595 |
| 10draft | 54 | Wirontono, Victor (1591) | Lost 1-2 | -181577 |
| 11draft | 60 | Pe, Damien Hang Rui (1544) | Won 2-0 | +171594 |
| 12draft | 37 | Teh, Vincent (1717) | Won 2-0 | +211615 |
| 13draft | 44 | Ibrahim, Khairil (1566) | Lost 1-2 | -191596 |
| 14draft | 27 | Wirontono, Victor (1593) | Won 2-1 | +181614 |
| 15draft | 32 | Hiew, Chee Choong (1727) | Lost 0-2 | -161598 |
| top | average opponent: 1582record: 10-5 | new rating: 1598 | ||
| Grand Prix Singapore 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 77 | Wong, Wei Quan (1500) | Lost 0-2 | -181482 |
| 2extended | 101 | Yeh, Chao Lung (1633) | Lost 1-2 | -151467 |
| 3extended | 138 | Costales, Glenn S (1445) | Won 1-0 | +171484 |
| 4extended | 167 | Goh, Kun Hao Sullivan (1482) | Lost 0-2 | -181466 |
| 5extended | 150 | Law, Chian Thye (1462) | Won 2-0 | +181484 |
| 6extended | 139 | Goh, Jing Heng Alfred (1484) | Won 2-0 | +181502 |
| 7extended | 105 | Ijaya, Ferry (1510) | Lost 1-2 | -181484 |
| 8extended | 107 | Yamakawa, Youichirou (1536) | Won 2-1 | +191503 |
| top | average opponent: 1507record: 4-4 | new rating: 1503 | ||