Seino, Satoshi
Current rating: 1486
Record: 3-4
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 40 | Kinemuchi, Juri (1500) | Won 2-0 | +181518 |
| 2sealed | 12 | Matsumoto, Hiroshi (1571) | Won 2-1 | +191537 |
| 3sealed | 57 | Nakamura, Yusuke (1598) | Lost 0-2 | -171520 |
| 4sealed | 201 | Dan, Akira (1578) | Won 2-1 | +191539 |
| 5sealed | 111 | Igarashi, Tooru (1539) | Lost 1-2 | -181521 |
| 6sealed | 151 | Nakamura, Atsushi (1570) | Lost 0-2 | -171504 |
| 7sealed | 155 | Yamada, Yasuo (1493) | Lost 1-2 | -181486 |
| average opponent: 1550record: 3-4 | new rating: 1486 | |||