Yamawaki, Keisuke
Current rating: 1467
| Grand Prix Yokohama 2012 (modern) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 336 | Uemura, Naoki (1500) | Lost 0-2 | -181489 |
| 2modern | 648 | Maeda, Takashi (1362) | Lost 0-2 | -201469 |
| 3modern | 616 | Oota, Shigeru (1347) | Lost 1-2 | -201449 |
| 4modern | 716 | Ichinohe, Hirona (1445) | Won 2-0 | +181467 |
| 5modern | 598 | Haga, Ryuji (1464) | Won 2-0 | +181485 |
| 6modern | 517 | Shibata, Nozomu (1482) | Lost 0-2 | -181467 |
| top | average opponent: 1433record: 2-4 | new rating: 1467 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 263 | Mori, Masatake (1445) | Lost 0-2 | -191497 |
| 2standard | 293 | Oyama, Hiroki (1427) | Lost 0-2 | -201477 |
| 3standard | 363 | Harada, Toshiya (1340) | Won 2-0 | +161493 |
| 4standard | 333 | Kawahara, Taku (1413) | Won 2-1 | +161509 |
| 5standard | 296 | Suzuki, Shogo (1466) | Won 2-0 | +181527 |
| 6standard | 213 | Mori, Genki (1457) | Lost 0-2 | -201507 |
| top | average opponent: 1425record: 3-3 | new rating: 1507 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 152 | Iwai, Genki (1500) | Won 2-0 | +181518 |
| 2sealed | 145 | Shiraishi, Masaharu (1540) | Won 2-1 | +181536 |
| 3sealed | 17 | Matsumura, Takehiko (1449) | Lost 0-2 | -191517 |
| 4sealed | 206 | Tsukamoto, Tatsushi (1429) | Lost 0-2 | -201497 |
| 5sealed | 226 | Yasunaka, Ryouhei (1558) | Won 2-1 | +191516 |
| 6sealed | 107 | Asano, Atsushi (1521) | Won 2-1 | +181534 |
| 7sealed | 116 | Kobayashi, Tatsuumi (1507) | Lost 0-2 | -181516 |
| top | average opponent: 1501record: 4-3 | new rating: 1516 | ||