Yoshihara, Katsuji
Current rating: 1372
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1422 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 122 | Satomura, Shunsuke (1500) | Lost 0-2 | -171405 |
| 2standard | 294 | Nagase, Hirofumi (1482) | Lost 0-2 | -161389 |
| 3standard | 323 | Kasuga, Ryosuke (1430) | Lost 1-2 | -171372 |
| top | average opponent: 1470record: 0-3 | new rating: 1372 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 276 | Yokoyama, Ryousuke (1555) | Lost 0-0 | -151413 |
| 2sealed | 176 | kou, siki (1483) | Won 2-1 | +191432 |
| 3sealed | 150 | Yoshida, Taiki (1555) | Lost 0-2 | -161416 |
| 4sealed | 239 | Takakura, Takeshi (1544) | Won 2-1 | +201436 |
| 5sealed | 144 | Kawakami, Kazuto (1637) | Lost 0-2 | -141422 |
| top | average opponent: 1555record: 2-3 | new rating: 1422 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 114 | Nakashima, Hiroki (1500) | Lost 0-2 | -181482 |
| 2sealed | 173 | Shibuya, Tsutomu (1482) | Won 2-0 | +181500 |
| 3sealed | 82 | Matsuo, Koichiro (1534) | Lost 1-2 | -171483 |
| 4sealed | 171 | Ito, Yoshihiro (1482) | Lost 0-2 | -181465 |
| 5sealed | 160 | Watai, Yoichiro (1446) | Lost 0-2 | -191446 |
| 6sealed | 148 | Kondo, Takahito (1447) | Lost 0-2 | -181428 |
| top | average opponent: 1482record: 1-5 | new rating: 1428 | ||