Yamamoto, Yasuhito
Current rating: 1453
Record: 3-6
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 989 | Hayashi, Katsuji (1545) | Won 2-1 | +191507 |
| 2sealed | 986 | Sato, Ryo (1518) | Lost 0-2 | -171490 |
| 3sealed | 1132 | Fujita, Yoshito (1499) | Lost 0-2 | -181472 |
| 4sealed | 1168 | Yamashita, Hiromichi (1429) | Lost 1-2 | -191453 |
| average opponent: 1498record: 1-3 | new rating: 1453 | |||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 226 | Goh, Yong Zhi Nicholas (1637) | Won 2-1 | +201520 |
| 2sealed | 217 | Arakawa, Tatsuya (1766) | Lost 1-2 | -131507 |
| 3sealed | 373 | Takahashi, Masato (1464) | Won 2-0 | +171524 |
| 4sealed | 224 | Kim, Han-yong (1518) | Lost 0-2 | -181506 |
| 5sealed | 319 | Harada, Masao (1531) | Lost 0-2 | -181488 |
| average opponent: 1583record: 2-3 | new rating: 1488 | |||