Kumagai, Satoshi
Current rating: 1464
Record: 0-2
| Grand Prix Yokohama 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 208 | Harada, Toshiyuki (1592) | Lost 0-2 | -161484 |
| 2extended | 361 | Sasaki, Daisuke (1396) | Lost 1-2 | -201464 |
| average opponent: 1494record: 0-2 | new rating: 1464 | |||