Shimizu, Kouichi
Current rating: 1571
Record: 6-2
| Grand Prix Matsuyama 2005 (BOK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 56 | Ikeda, Kunio (1429) | Won 2-1 | +171517 |
| 2sealed | 97 | Okada, Kou (1645) | Lost 0-2 | -161501 |
| 3sealed | 124 | Kiyohara, Yoichi (1481) | Won 2-0 | +181519 |
| 4sealed | 103 | Taniguchi, Hidehisa (1576) | Lost 1-2 | -171502 |
| 5sealed | 146 | Sakamoto, Sakito (1477) | Won 2-1 | +171519 |
| 6sealed | 90 | Juumonji, Tarou (1503) | Won 2-0 | +181537 |
| 7sealed | 81 | Taniguchi, Hiroaki (1487) | Won 2-0 | +171554 |
| 8sealed | 42 | Chuujou, Yoshihiko (1506) | Won 2-1 | +171571 |
| average opponent: 1513record: 6-2 | new rating: 1571 | |||