Chen, Guo Chao
Current rating: 1496
Record: 8-8-1
| Grand Prix Hong Kong 2015 (ORI limited) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 201 | Wong, Yin Ming (1467) | Lost 0-2 | -191519 |
| 2sealed | 220 | Lai, Vilson (1467) | Won 2-0 | +171536 |
| 3sealed | 288 | Hos, Hos (1560) | Won 2-0 | +181554 |
| 4sealed | 179 | Cruz, Marlon Kane (1589) | Lost 0-2 | -171537 |
| 5sealed | 260 | Yamada, Yuta (1474) | Lost 1-2 | -191518 |
| 6sealed | 290 | Etourneaud, Eric (1545) | Lost 1-2 | -181500 |
| 7sealed | 288 | Chung, Felix (1445) | Won 2-0 | +171517 |
| 8sealed | 210 | Ojima, Tomohito (1313) | Lost 0-2 | -211496 |
| average opponent: 1482record: 3-5 | new rating: 1496 | |||
| Grand Prix Hong Kong 2013 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 239 | Jin, Yi Kai (1601) | Lost 1-2 | -161484 |
| 2sealed | 237 | Lim, David (1563) | Won 2-1 | +191503 |
| 3sealed | 332 | Chaitip, Supoj (1435) | Won 2-0 | +171520 |
| 4sealed | 144 | Tang, Sai Cheong (1518) | Lost 0-2 | -181502 |
| 5sealed | 333 | Chan, Yiu-Cho (1499) | Won 2-0 | +181520 |
| 6sealed | 232 | Cheung, Pak Hang (1518) | Draw 1-1 | 01520 |
| 7sealed | 212 | Ju, Shuang (1544) | Won 2-0 | +181538 |
| 8sealed | 151 | Zhao, Zhenwen (1568) | Won 2-0 | +191557 |
| 9sealed | 98 | Lee, Yoon-Hyung (1521) | Lost 1-2 | -191538 |
| average opponent: 1530record: 5-3-1 | new rating: 1538 | |||