Koizumi, Norihiro
Current rating: 1522
Record: 4-3
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 256 | Sato, Shigeru (1500) | Lost 1-2 | -181482 |
| 2sealed | 246 | Takahashi, Kenta (1482) | Lost 1-2 | -181464 |
| 3sealed | 304 | Kondo, Yoriyuki (1464) | Won 2-0 | +181482 |
| 4sealed | 234 | Hayashi, Hiroki (1593) | Won 2-0 | +201502 |
| 5sealed | 136 | Tabuchi, Atsushi (1490) | Won 2-0 | +181520 |
| 6sealed | 119 | Adachi, Shingo (1626) | Won 2-1 | +201540 |
| 7sealed | 52 | Sugaya, Akio (1569) | Lost 0-2 | -181522 |
| average opponent: 1532record: 4-3 | new rating: 1522 | |||