Okamatsu, Masaki
Current rating: 1524
Record: 3-2-1
| Grand Prix Kitakyushu 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 38 | Hosaka, Wataru (1402) | Won 2-0 | +161516 |
| 2extended | 15 | Murata, Shouta (1520) | Draw 1-1 | 01516 |
| 3extended | 43 | Sugaya, Akio (1567) | Won 2-1 | +191535 |
| 4extended | 44 | Taniguchi, Manabu (1541) | Lost 0-2 | -181517 |
| 5extended | 64 | Suginaka, Toshio (1498) | Won 2-0 | +181535 |
| 6extended | 41 | Hirabayashi, Kazuya (1933) | Lost 0-2 | -111524 |
| average opponent: 1577record: 3-2-1 | new rating: 1524 | |||