Ong, Heng Woon
Current rating: 1548
| Grand Prix Kuala Lumpur 2002 (TOR limited) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 20 | Fadzrun, Ahmad (1500) | Draw 1-1 | -11549 |
| 2sealed | 50 | Loh, Chuan Han (1554) | Lost 1-2 | -181531 |
| 3sealed | 81 | Wong, Choe Yew (1500) | Won 2-0 | +181549 |
| 4sealed | 76 | Tay, Tze Yang (1516) | Draw 1-1 | -11548 |
| top | average opponent: 1517record: 1-1-2 | new rating: 1548 | ||
| Grand Prix Singapore 2000 (extended) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 31 | Mohd Din, Mohd Azri Amran (1500) | Won 2-0 | +171553 |
| 2extended | 35 | Tan, Teng Xiang Desmond (1518) | Lost 0-2 | -181535 |
| 3extended | 59 | Lim, Jimmy Chun Long (1500) | Won 2-1 | +171552 |
| 4extended | 56 | Sng, Jason Koon Yeow (1519) | Lost 1-2 | -191533 |
| 5extended | 60 | Neo, Jonathan Anthony (1516) | Won 2-1 | +181551 |
| 6extended | 53 | Tan, Beng (1519) | Lost 1-2 | -181533 |
| 7extended | 56 | Hisyam, Muhammad Syahrul (1500) | Won 2-0 | +171550 |
| top | average opponent: 1510record: 4-3 | new rating: 1550 | ||
| Grand Prix Kuala Lumpur 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 85 | Lin, Bao Qiang (1500) | Lost 0-0 | -181482 |
| 2extended | 122 | Cheong, Chee Kean (1482) | Won 0-0 | +181500 |
| 3extended | 99 | Yap, Clifford Tsiang Ming (1500) | Lost 0-0 | -181482 |
| 4extended | 123 | Loh, Ivan (1482) | Won 0-0 | +181500 |
| 5extended | 78 | Ooi, June Ping (1500) | Won 0-0 | +181518 |
| 6extended | 61 | Foo, Kee Fung (1518) | Won 0-0 | +181536 |
| top | average opponent: 1497record: 4-2 | new rating: 1536 | ||