Ikeda, Yasuhisa
Current rating: 1598
Record: 10-5
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 103 | Nakamura, Junya (1506) | Lost 1-2 | -181482 |
| 2sealed | 204 | Back, James (1466) | Won 2-1 | +181500 |
| 3sealed | 227 | Takeuchi, Hidehito (1308) | Won 2-0 | +141514 |
| 4sealed | 148 | Yamaguchi, Yuuichi (1610) | Won 2-0 | +201534 |
| 5sealed | 53 | Ikawa, Yoshihiko (1560) | Lost 1-2 | -171517 |
| 6sealed | 183 | Motoyanagi, Youhei (1514) | Won 2-1 | +181535 |
| 7sealed | 75 | Yamada, Yuma (1631) | Won 2-1 | +191554 |
| 8sealed | 87 | Itou, Masayoshi (1535) | Won 2-0 | +181572 |
| 9sealed | 36 | Orsini Jones, Matteo (1824) | Won 2-0 | +221594 |
| 10draft | 29 | Katayose, Shingo (1758) | Lost 0-2 | -151579 |
| 11draft | 30 | Gotou, Takahiro (1459) | Won 2-1 | +161595 |
| 12draft | 22 | Kinoshita, Tomoya (1619) | Lost 0-2 | -171578 |
| 13draft | 25 | Minamimura, Yukihiro (1641) | Lost 0-2 | -171561 |
| 14draft | 24 | Nuruki, Hiroaki (1603) | Won 2-0 | +191580 |
| 15draft | 30 | Tamaki, Yuusuke (1583) | Won 2-0 | +181598 |
| average opponent: 1574record: 10-5 | new rating: 1598 | |||