Okumura, Atsushi
Current rating: 1550
Record: 8-5-2
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 10 | Iwata, Hiroshi (1518) | Lost 0-2 | -181518 |
| 3block | 303 | Oonishi, Natsuki (1500) | Won 2-0 | +171535 |
| 4block | 221 | Hirota, Yuzo (1519) | Lost 0-2 | -181517 |
| 5block | 379 | Yamashita, Ryusuke (1500) | Won 2-1 | +181535 |
| 6block | 305 | Miyamoto, Yoshiharu (1450) | Won 2-1 | +161551 |
| 7block | 223 | Yanagawa, Masaru (1535) | Won 2-1 | +181569 |
| 8block | 165 | Tsujimura, Tsuyoshi (1556) | Draw 1-1 | 01569 |
| 9block | 118 | Juumonji, Tarou (1527) | Lost 0-2 | -191550 |
| average opponent: 1513record: 4-3-1 | new rating: 1550 | |||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 195 | Kai, Tsubasa (1500) | Lost 0-2 | -181482 |
| 2extended | 272 | Morita, Masayuki (1482) | Won 1-0 | +181500 |
| 3extended | 199 | Shimakawa, Hidekazu (1501) | Draw 1-1 | 01500 |
| 4extended | 223 | Tanaka, Yoshinori (1500) | Won 2-0 | +181518 |
| 5extended | 154 | Fujihara, Yuji (1517) | Won 2-0 | +181536 |
| 6extended | 100 | Kondo, Yosuke (1536) | Won 2-0 | +181554 |
| 7extended | 55 | Yanagawa, Tetsuji (1552) | Lost 0-2 | -181536 |
| average opponent: 1513record: 4-2-1 | new rating: 1536 | |||