Koizumi, Hideki
Current rating: 1500
Record: 3-3-1
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 228 | Taniguchi, Go (1500) | Lost 0-2 | -181482 |
| 2extended | 233 | Furukawa, Tomohiro (1482) | Won 2-1 | +181500 |
| 3extended | 154 | Takano, Masayuki (1500) | Draw 0-0 | 01500 |
| 4extended | 219 | Mizutani, Hiroya (1481) | Lost 1-2 | -181482 |
| 5extended | 256 | Yoshizawa, Toshio (1482) | Won 2-1 | +181500 |
| 6extended | 196 | Nagano, Munehisa (1500) | Won 2-0 | +181518 |
| 7extended | 139 | Takabatake, Takayuki (1518) | Lost 0-2 | -181500 |
| average opponent: 1495record: 3-3-1 | new rating: 1500 | |||