Katsumata, Chihiro
Current rating: 1391
Record: 5-11
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 74 | Mochizuki, Takahito (1440) | Won 2-1 | +171483 |
| 2sealed | 14 | Saito, Takanobu (1488) | Lost 0-2 | -171466 |
| 3sealed | 129 | Nishiwaki, Masato (1413) | Lost 1-2 | -191447 |
| 4sealed | 217 | Minato, Junichi (1482) | Lost 1-2 | -181429 |
| 5sealed | 238 | Ogawa, Yusuke (1466) | Lost 0-2 | -171412 |
| 6sealed | 197 | Iioka, Kenta (1357) | Won 2-1 | +171429 |
| 7sealed | 158 | Matushita, Masakazu(KG) (1451) | Lost 0-2 | -181411 |
| 8sealed | 126 | Saito, Yoshihide (1285) | Lost 1-2 | -201391 |
| average opponent: 1423record: 2-6 | new rating: 1391 | |||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3 | Fujimori, Yoshishige (1464) | Lost 0-2 | -191481 |
| 2sealed | 223 | Tsuchiya, Yasuhide (1433) | Lost 0-2 | -191462 |
| 3sealed | 271 | Ichinose, Takashi (1444) | Won 2-0 | +181480 |
| 4sealed | 201 | Sasahara, Yasufumi (1614) | Lost 0-2 | -151465 |
| 5sealed | 234 | Kimoto, Seiichi (1461) | Won 2-1 | +171482 |
| 6sealed | 176 | Deyama, Hirofumi (1379) | Lost 1-2 | -191463 |
| 7sealed | 156 | Kise, Masato (1641) | Won 2-0 | +211484 |
| 8sealed | 120 | Kim, Jang-hong (1489) | Lost 0-2 | -181466 |
| average opponent: 1491record: 3-5 | new rating: 1466 | |||