Kawamoto, Masamitsu
Current rating: 1446
Record: 2-5
| Grand Prix Yokohama 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 374 | Miyashiro, Ronaldo (1500) | Lost 1-2 | -181482 |
| 2extended | 354 | Toujou, Madoka (1482) | Won 2-1 | +181500 |
| 3extended | 216 | Ohmura, Satoshi (1443) | Lost 0-2 | -191481 |
| 4extended | 396 | Osako, Kazuki (1479) | Won 2-0 | +181499 |
| 5extended | 333 | Sakai, Yuuto (1508) | Lost 1-2 | -181481 |
| 6extended | 345 | Katou, Akihiro (1530) | Lost 0-2 | -171464 |
| 7extended | 269 | Amino, Kaoru (1480) | Lost 0-2 | -181446 |
| average opponent: 1489record: 2-5 | new rating: 1446 | |||