Tan, Keng Wee Samuel
Current rating: 1461
Record: 4-6-1
| Grand Prix Singapore 2005 (extended) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 34 | Ho, Yong Jian (1500) | Lost 1-2 | -191517 |
| 2extended | 90 | Ng, Wai Kwong Victor (1482) | Lost 1-2 | -181499 |
| 3extended | 126 | Tan, Eng Giap (1465) | Lost 0-2 | -191480 |
| 4extended | 177 | Liew, Gabriel Wei Sheng (1446) | Lost 0-2 | -191461 |
| average opponent: 1473record: 0-4 | new rating: 1461 | |||
| Grand Prix Singapore 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 18 | Lu, Chee Yuen (1500) | Draw 1-1 | 01500 |
| 2sealed | 53 | Yeo, Kian Giap (1500) | Lost 0-2 | -181482 |
| 3sealed | 81 | Wong, Chun Hong Jeff (1482) | Won 2-1 | +181500 |
| 4sealed | 77 | Farith, Ahmad Ismail (1499) | Lost 0-2 | -181482 |
| 5sealed | 92 | Ong, Kiat Sing (1483) | Won 2-0 | +181500 |
| 6sealed | 73 | Ang, Guang Rong (1499) | Won 2-0 | +181518 |
| 7sealed | 55 | Leow, Yuan Kai (1520) | Won 2-0 | +181536 |
| average opponent: 1497record: 4-2-1 | new rating: 1536 | |||