Chong, Kelvin
Current rating: 1384
| Grand Prix Chiba 2016 (legacy) | starting rating: 1402 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 303 | Yamaya, Hiroki (1396) | Lost 0-2 | -181384 |
| top | record: 0-1 | new rating: 1384 | ||
| Grand Prix Kuala Lumpur 2006 (DIS limited) | starting rating: 1429 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 35 | Chua, David (1572) | Lost 1-2 | -161413 |
| 2sealed | 83 | Mohd Din, Mohd Azri Amran (1465) | Won 2-1 | +191432 |
| 3sealed | 105 | Hassan, Shahrizan Ferouz (1539) | Lost 0-2 | -161416 |
| 4sealed | 119 | Lim, Leslie (1436) | Won 2-1 | +181434 |
| 5sealed | 105 | Ong, Boon Kiat (1522) | Lost 0-2 | -161418 |
| 6sealed | 111 | Chen, Kuang (1511) | Lost 0-2 | -161402 |
| top | average opponent: 1507record: 2-4 | new rating: 1402 | ||
| Grand Prix Singapore 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 19 | Sia, Hwee Koon (1500) | Lost 1-2 | -181482 |
| 2sealed | 57 | Hisyam, Muhammad Syahrul (1405) | Lost 1-2 | -191463 |
| 4sealed | 87 | Yeo, Lee Chye (1482) | Lost 0-2 | -181445 |
| 5sealed | 103 | Ong, Weiwah (1463) | Lost 0-2 | -181427 |
| 6sealed | 107 | Ong, Wei Meng (1446) | Won 2-0 | +191446 |
| 7sealed | 83 | Chua, Daniel Boon Hwee (1499) | Lost 0-2 | -171429 |
| top | average opponent: 1466record: 1-5 | new rating: 1429 | ||