Hirai, Tooru
Current rating: 1504
Record: 3-3
| Grand Prix Yokohama 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 14 | Noguchi, Keita (1562) | Won 2-1 | +191519 |
| 2extended | 85 | Sawada, Ken (1643) | Lost 1-2 | -161503 |
| 3extended | 373 | Sakai, Yuuto (1510) | Won 2-0 | +181521 |
| 4extended | 186 | Kouno, Tomohiro (1550) | Won 2-0 | +191540 |
| 5extended | 113 | Morishima, Kenta (1544) | Lost 0-2 | -181522 |
| 6extended | 263 | Ootake, Takafumi (1524) | Lost 1-2 | -181504 |
| average opponent: 1555record: 3-3 | new rating: 1504 | |||