Yamamoto, Unknown
Current rating: 1497
Record: 3-3
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 199 | Nakamura, Taro (1442) | Lost 1-2 | -191481 |
| 2standard | 662 | Fukuda, Yoshifumi (1503) | Lost 1-2 | -181463 |
| 3standard | 1207 | Noda, Takeshi (1465) | Won 2-0 | +181481 |
| 4standard | 1076 | Ibushi, Shotaro (1464) | Won 2-1 | +181499 |
| 5standard | 884 | Nakamura, Naomichi (1477) | Won 2-0 | +181517 |
| 6standard | 659 | Nozawa, Yuusuke (1442) | Lost 1-2 | -201497 |
| average opponent: 1466record: 3-3 | new rating: 1497 | |||