souma, hideaki
Current rating: 1508
Record: 3-3
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 4 | Ida, Tomoaki (1558) | Won 2-1 | +191519 |
| 2sealed | 71 | Matsuki, Hitoshi (1605) | Won 2-0 | +201539 |
| 3sealed | 64 | Iwasaki, Yuusuke (1762) | Won 2-0 | +221561 |
| 4sealed | 35 | Muguro, Kaito (1557) | Lost 0-2 | -181543 |
| 5sealed | 80 | Iwase, Akira (1537) | Lost 1-2 | -191524 |
| 6sealed | 111 | Marr, Mat (1636) | Lost 0-2 | -161508 |
| average opponent: 1609record: 3-3 | new rating: 1508 | |||