iida, yuusaku
Current rating: 1521
Record: 4-3
| Grand Prix Yokohama 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 286 | ishitsuka, syuuhei (1500) | Won 2-0 | +181518 |
| 2extended | 188 | Kamekawa, Masashi (1518) | Lost 0-2 | -181500 |
| 3extended | 210 | Gouda, Fumito (1499) | Lost 0-2 | -181482 |
| 4extended | 347 | Oohashi, Toshiya (1598) | Lost 1-2 | -161466 |
| 5extended | 419 | Shiraishi, Ryou (1543) | Won 2-1 | +201486 |
| 6extended | 316 | Sano, Shouta (1486) | Won 2-0 | +181504 |
| 7extended | 234 | Amayasu, Kazunori (1460) | Won 2-0 | +171521 |
| average opponent: 1515record: 4-3 | new rating: 1521 | |||