Ka Chun, Chu
Current rating: 1425
Record: 5-10
| Grand Prix Hong Kong 2017 (XLN limited) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 41 | Lu, Yun (1547) | Lost 0-2 | -171451 |
| 2sealed | 226 | Zhang, Jie (1453) | Won 2-1 | +181469 |
| 3sealed | 296 | Lo, Armando Ngai Shu (1570) | Won 2-0 | +201489 |
| 4sealed | 212 | Alloso, Mark Ian (1565) | Lost 1-2 | -171472 |
| 5sealed | 274 | Ho, Ming Ho (1539) | Lost 1-2 | -161456 |
| 6sealed | 246 | Lee, Kai Yip (1566) | Lost 1-2 | -161440 |
| 7sealed | 271 | Zhuang, Kai (1484) | Lost 0-2 | -181422 |
| 8sealed | 265 | Chew, Melvin (1501) | Lost 1-2 | -161406 |
| 9sealed | 241 | Hung, James (1448) | Won 2-0 | +191425 |
| average opponent: 1519record: 3-6 | new rating: 1425 | |||
| Grand Prix Hong Kong 2015 (ORI limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 166 | Guan, Zijun (1449) | Lost 0-2 | -191481 |
| 2sealed | 277 | Hsu, Yee Feng (1482) | Lost 0-2 | -181463 |
| 3sealed | 373 | Lee, Yongjin (1525) | Won 2-1 | +191482 |
| 4sealed | 299 | Lee, Shang Yu (1501) | Won 2-0 | +191501 |
| 5sealed | 292 | Ishimaru, Ken (1669) | Lost 0-2 | -151486 |
| 6sealed | 312 | Zhang, JingYhe (1484) | Lost 0-2 | -181468 |
| average opponent: 1518record: 2-4 | new rating: 1468 | |||