Cheng, Kin
Current rating: 1502
| Grand Prix Hong Kong 2015 (ORI limited) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 173 | Leonard, Dan (1500) | Won 2-0 | +171540 |
| 2sealed | 115 | Quinto, Julius Caesar (1507) | Lost 1-2 | -181522 |
| 3sealed | 307 | Liu, Chi Lap Thomas (1501) | Lost 1-2 | -191503 |
| 4sealed | 323 | Zhu, Wenwen (1483) | Won 2-0 | +181521 |
| 5sealed | 207 | Reyes, Bejay (1479) | Lost 0-2 | -191502 |
| top | average opponent: 1494record: 2-3 | new rating: 1502 | ||
| Grand Prix Hong Kong 2013 (THS limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 179 | Cheung, Pak Hang (1500) | Won 2-0 | +171538 |
| 2sealed | 82 | Clark Kei Lok, Yu (1518) | Lost 1-2 | -181520 |
| 3sealed | 326 | Yu, Xiaodan (1502) | Won 2-0 | +181538 |
| 4sealed | 213 | Yu, Stanley (1562) | Won 2-0 | +181556 |
| 5sealed | 87 | Chen, Yen-Chou (1589) | Lost 0-2 | -171539 |
| 6sealed | 202 | Kim, So Hwan (1484) | Lost 1-2 | -191520 |
| 7sealed | 246 | Phanpakorn, Dolpipop (1519) | Won 2-0 | +181538 |
| 8sealed | 179 | Lau, Sam Lei Kang (1710) | Lost 1-2 | -151523 |
| top | average opponent: 1548record: 4-4 | new rating: 1523 | ||
| Grand Prix Taipei 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 186 | hwang, shi lin (1500) | Won 2-1 | +181518 |
| 2sealed | 76 | Tokura, Mikihiro (1454) | Lost 0-2 | -191499 |
| 3sealed | 242 | Wada, Takahide (1448) | Lost 0-2 | -191480 |
| 4sealed | 263 | Yen, Adam (1598) | Lost 0-2 | -161464 |
| 5sealed | 311 | Wang, Hwe Hwa (1472) | Won 2-1 | +181482 |
| 6sealed | 242 | Sato, Takatoshi (1669) | Won 2-0 | +221504 |
| 7sealed | 173 | Wu, jia-ru (1484) | Lost 0-2 | -191485 |
| 8sealed | 203 | Sie, Wen Kai (1467) | Won 2-1 | +181503 |
| 9sealed | 166 | Ruan, Jianyong (1503) | Won 2-0 | +181521 |
| top | average opponent: 1510record: 5-4 | new rating: 1521 | ||