Ong, Dun Chuan
Current rating: 1586
Record: 17-12-4
| Grand Prix Kuala Lumpur 2014 (THS limited) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 102 | Lee, Hoongfei (1472) | Lost 0-1 | -191523 |
| 2sealed | 321 | Khor, Chong Xiang (1477) | Lost 0-2 | -191504 |
| 3sealed | 392 | Mohd Khalib, Azmin (1405) | Won 2-0 | +161520 |
| 4sealed | 348 | Chong, Chun Wai (1481) | Won 2-1 | +171537 |
| 5sealed | 235 | Giri, Devinn Shaun (1488) | Won 2-1 | +171554 |
| 6sealed | 156 | Purijitrawong, Chalerm (1517) | Draw 1-1 | 01554 |
| 7sealed | 199 | Chin, Kritz (1526) | Won 2-0 | +171571 |
| 8sealed | 146 | Tanyag, Eduardo (1523) | Won 2-0 | +171588 |
| 9sealed | 90 | Ming Hwa, Chen (1591) | Won 2-0 | +181606 |
| 10draft | 52 | Tang, Frederic (1475) | Lost 1-2 | -201586 |
| top | average opponent: 1496record: 6-3-1 | new rating: 1586 | ||
| Grand Prix Manila 2008 (Lorwyn block) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 4block | 5 | Cantillana, Andrew (1554) | Draw 1-1 | +11522 |
| 5block | 36 | cabarles, paul vincent (1536) | Won 2-1 | +181540 |
| 6block | 19 | Chick, Hoi (1575) | Draw 1-1 | +11541 |
| 7block | 47 | Vergara, Karlo (1563) | Lost 0-2 | -181523 |
| 8block | 84 | Golpeo, Kirsten (1557) | Won 1-0 | +191542 |
| top | average opponent: 1557record: 2-1-2 | new rating: 1542 | ||
| Grand Prix Kuala Lumpur 2006 (DIS limited) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 33 | Lee, Warren K (1500) | Lost 0-2 | -191514 |
| 3sealed | 76 | Mohd Johari, Mohd Johan Jefri (1500) | Won 2-0 | +181532 |
| 4sealed | 59 | Sirimanne, Barry (1454) | Won 2-0 | +171549 |
| 5sealed | 52 | Martin, Quentin (2010) | Lost 1-2 | -101539 |
| 6sealed | 86 | Kang, Gabriel (1586) | Lost 1-2 | -181521 |
| top | average opponent: 1610record: 2-3 | new rating: 1521 | ||
| Grand Prix Kuala Lumpur 2004 (5DN standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 9 | Ang, Kenny (1462) | Lost 1-2 | -191499 |
| 3standard | 50 | Low, Kah Joo (1500) | Won 2-0 | +181517 |
| 4standard | 77 | Buchanan, Andrew (1525) | Lost 0-1 | -181499 |
| 5standard | 77 | Adams, George (1502) | Won 2-1 | +181517 |
| 6standard | 65 | Low, Steve Ka Weng (1480) | Draw 1-1 | 01517 |
| 7standard | 64 | Liew, Hao Dong (1421) | Won 2-1 | +161533 |
| top | average opponent: 1482record: 3-2-1 | new rating: 1533 | ||
| Grand Prix Singapore 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 25 | Lie, Sunny (1504) | Lost 1-2 | -181482 |
| 2sealed | 75 | Jamal, Johan (1466) | Lost 0-2 | -181464 |
| 3sealed | 89 | Chua, Daniel Boon Hwee (1501) | Won 2-0 | +181482 |
| 4sealed | 96 | Pan, Zhi Zhong (1482) | Won 2-0 | +181500 |
| 5sealed | 76 | Tan, Darren (1500) | Won 2-0 | +181518 |
| 6sealed | 42 | Li, Fabien (1502) | Lost 1-2 | -181500 |
| 7sealed | 75 | Choo, Yong Han (1502) | Won 2-0 | +181518 |
| top | average opponent: 1494record: 4-3 | new rating: 1518 | ||