Kohiyama, Wataru
Current rating: 1522
Record: 2-1
| Grand Prix Yokohama 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 186 | Kobayashi, Masanori (1562) | Won 2-1 | +191519 |
| 2extended | 239 | Lunde, James s (1500) | Won 2-1 | +181537 |
| 3extended | 98 | Hamamoto, Kenji (1695) | Lost 1-2 | -151522 |
| average opponent: 1586record: 2-1 | new rating: 1522 | |||