Koe, Jonathan
Current rating: 1555
Record: 5-2
| Grand Prix Singapore 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 11 | Lee, Clemence (1500) | Lost 1-2 | -181482 |
| 2sealed | 63 | Su, Marcus S (1482) | Won 2-0 | +181500 |
| 3sealed | 45 | Oh, Sing Tai Reno (1500) | Won 2-0 | +181518 |
| 4sealed | 46 | Zainuddin, Shamsul Bahrin (1537) | Won 2-0 | +181536 |
| 5sealed | 50 | Zhong, Wei Wen (1506) | Lost 1-2 | -181518 |
| 6sealed | 44 | Guerrero, Ogie (1495) | Won 2-1 | +171535 |
| 7sealed | 52 | Tan, Kiat Cheong (1622) | Won 2-1 | +201555 |
| average opponent: 1520record: 5-2 | new rating: 1555 | |||