Akiyoshi, Koichi
Current rating: 1534
Record: 8-6
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 209 | Kitamura, Tomohiro (1518) | Lost 1-2 | -191517 |
| 3block | 409 | Ueda, Yoshiki (1501) | Won 2-0 | +181535 |
| 4block | 201 | Azuma, Katsushi (1518) | Lost 0-2 | -181517 |
| 5block | 323 | Ikeda, Naoto (1500) | Won 2-1 | +171534 |
| 6block | 260 | Ishikawa, Ryota (1518) | Won 2-1 | +181552 |
| 7block | 226 | Furuyabu, Hiroaki (1535) | Lost 1-2 | -181534 |
| average opponent: 1515record: 3-3 | new rating: 1534 | |||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 5 | Nozaki, Taiki (1500) | Lost 1-2 | -181482 |
| 2extended | 250 | Nishimura, Sho (1482) | Lost 0-2 | -181464 |
| 3extended | 328 | Miyazoe, RYo (1465) | Won 2-0 | +181482 |
| 4extended | 258 | Okazaki, Hideki (1482) | Won 2-1 | +181500 |
| 5extended | 192 | Kusumoto, Yoji (1500) | Won 2-1 | +181518 |
| 6extended | 119 | Hayashi, Chikara (1501) | Lost 1-2 | -181500 |
| 7extended | 146 | Ito, Masaki (1499) | Won 2-0 | +181518 |
| 8extended | 120 | Yamamoto, Yusuke (1518) | Won 2-1 | +181536 |
| average opponent: 1493record: 5-3 | new rating: 1536 | |||