Yamanaka, Akinori
Current rating: 1537
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 64 | Nakao, Munenari (1467) | Lost 1-2 | -191482 |
| 2block | 264 | Osawa, Takuya (1592) | Lost 1-2 | -161466 |
| 3block | 362 | Okamoto, Nanato (1467) | Won 2-1 | +181484 |
| 4block | 322 | Kawase, Hiroaki (1480) | Won 2-0 | +181502 |
| 5block | 225 | Nakashima, Toshihiko (1483) | Won 2-1 | +181520 |
| 6block | 142 | Fujiyama, Teruyuki (1517) | Lost 1-2 | -191501 |
| 7block | 196 | Hamasuna, Toshitaka (1480) | Won 2-0 | +181519 |
| 8block | 151 | Wu, Kasin (1501) | Won 2-1 | +181537 |
| top | average opponent: 1499record: 5-3 | new rating: 1537 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 93 | Hayashi, Hayato (1500) | Won 2-1 | +181501 |
| 2block | 342 | Furuichi, Takenori (1517) | Won 2-1 | +181519 |
| 3block | 158 | Nishimura, Yuya (1467) | Lost 0-2 | -181501 |
| 4block | 285 | Konishi, Kohei (1500) | Won 2-1 | +181519 |
| 5block | 81 | Sawahata, Atsushi (1501) | Lost 1-2 | -191500 |
| 6block | 200 | Chin, Bing (1501) | Won 2-0 | +181518 |
| 7block | 234 | Ueno, Hiroaki (1536) | Lost 1-2 | -171501 |
| top | average opponent: 1503record: 4-3 | new rating: 1501 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 43 | Hojo, Yoshihiro (1500) | Lost 1-2 | -181482 |
| 2sealed | 124 | Yanagisawa, Tadahiro (1498) | Lost 0-2 | -181464 |
| 3sealed | 182 | Ogura, Daizo (1464) | Won 2-0 | +181482 |
| 4sealed | 161 | Komatsu, Toshiaki (1532) | Lost 1-2 | -171465 |
| 5sealed | 164 | Fujita, Hiroto (1464) | Lost 0-2 | -181447 |
| 6sealed | 149 | Tamano, Eiji (1446) | Won 2-1 | +181465 |
| 7sealed | 119 | Wakabayashi, Kiyoshi (1449) | Won 2-1 | +181483 |
| top | average opponent: 1479record: 3-4 | new rating: 1483 | ||