Okamoto, Kazuma
Current rating: 1542
Record: 8-6
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 27 | Sekimoto, Kandai (1711) | Lost 1-2 | -151524 |
| 2legacy | 289 | Jincho, Takayoshi (1503) | Won 2-1 | +181542 |
| 3legacy | 324 | Yamauchi, Shotaro (1494) | Lost 1-2 | -191523 |
| 4legacy | 351 | Kashima, Akihiro (1700) | Won 2-0 | +211544 |
| 5legacy | 318 | Kopic, Kenan (1530) | Won 2-1 | +181562 |
| 6legacy | 211 | Daigo, Toshimune (1451) | Lost 1-2 | -201542 |
| average opponent: 1565record: 3-3 | new rating: 1542 | |||
| Grand Prix Okayama 2004 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 95 | Aoki, Yuichiro (1502) | Lost 1-2 | -181482 |
| 2extended | 137 | Sasaki, Takeshi (1471) | Won 2-0 | +181500 |
| 3extended | 88 | Tomioka, Keita (1503) | Won 2-1 | +181518 |
| 4extended | 70 | Nohira, Takanori (1517) | Lost 1-2 | -181500 |
| 5extended | 99 | Isomoto, Hirofumi (1598) | Won 2-1 | +201520 |
| 6extended | 98 | Mitsuhashi, Takashi (1611) | Lost 0-2 | -171503 |
| 7extended | 108 | Moriya, Jun (1499) | Won 2-1 | +181521 |
| 8extended | 74 | Satou, Kiminori (1518) | Won 2-1 | +181539 |
| average opponent: 1527record: 5-3 | new rating: 1539 | |||