Boon, Justin
Current rating: 1488
Record: 5-6
| Grand Prix Hong Kong 2013 (THS limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 9 | Wong, Siu Wai (1500) | Won 2-0 | +181517 |
| 2sealed | 137 | Lam, Tsz Yeung (1686) | Lost 0-2 | -151502 |
| 3sealed | 322 | Cho, Yoon Shin (1501) | Lost 1-2 | -181484 |
| 4sealed | 382 | Chen, Wei Ji (1483) | Won 2-0 | +181502 |
| 5sealed | 324 | Carette, Alexandre (1699) | Lost 0-2 | -141488 |
| average opponent: 1574record: 2-3 | new rating: 1488 | |||
| Grand Prix Singapore 2013 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 6 | Alegre, Arnold C (1384) | Won 2-0 | +161516 |
| 2sealed | 58 | Riphat, Aziz (1557) | Lost 0-2 | -171499 |
| 3sealed | 291 | Shah Ahmad, Izwan (1587) | Won 2-0 | +191518 |
| 4sealed | 161 | Yen, Yung Ta (1649) | Won 2-1 | +211539 |
| 5sealed | 103 | Tan, Raymond (1438) | Lost 0-2 | -201519 |
| 6sealed | 177 | Shahabudin, Nur (1430) | Lost 0-2 | -201499 |
| average opponent: 1507record: 3-3 | new rating: 1499 | |||