Hoshiba, Shoma
Current rating: 1504
Record: 3-3
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 20 | Maruyama, Takaaki (1568) | Won 2-0 | +191519 |
| 2block | 22 | Okutomi, Hiromitsu (1534) | Won 2-0 | +191538 |
| 3block | 75 | Tsuchiya, Hideaki (1537) | Lost 1-2 | -191519 |
| 4block | 101 | Wakayama, Shiro (1544) | Won 2-0 | +191538 |
| 5block | 60 | Imai, Hideaki (1495) | Lost 0-2 | -191519 |
| 6block | 122 | Kubota, Kenta (1676) | Lost 0-2 | -151504 |
| average opponent: 1559record: 3-3 | new rating: 1504 | |||