Okamoto, Sigeki K
Current rating: 1562
Record: 6-3
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 82 | Suzuki, Tatsuya (1426) | Won 1-0 | +171517 |
| 2standard | 71 | Sato, Takatoshi (1684) | Won 2-1 | +211538 |
| 3standard | 67 | Agena, Daiki (1535) | Won 2-1 | +181556 |
| 4standard | 106 | Kibler, Brian (1908) | Lost 1-2 | -121544 |
| 5standard | 134 | Matsuzaki, Takanori (1535) | Lost 1-2 | -181526 |
| 6standard | 221 | Igarashi, Masatoshi (1518) | Won 2-0 | +181544 |
| 7standard | 156 | Watanabe, Kenji (1494) | Lost 0-2 | -191525 |
| 8standard | 150 | Ooneda, Yoshihiro (1589) | Won 2-1 | +191544 |
| 9standard | 118 | Kimura, Shigeki (1570) | Won 2-0 | +181562 |
| average opponent: 1584record: 6-3 | new rating: 1562 | |||