Shouyama, Akihiko
Current rating: 1522
Record: 6-5
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 33 | Kaminaka, Sousuke (1500) | Lost 0-2 | -171446 |
| 2sealed | 458 | Ootani, Hideyuki (1482) | Won 2-0 | +191465 |
| 3sealed | 354 | Takeda, Shunsuke (1500) | Won 2-0 | +181483 |
| 4sealed | 330 | Wada, Akihiro (1421) | Won 2-0 | +171500 |
| 5sealed | 222 | Makuta, Eiji (1529) | Won 2-1 | +191519 |
| 6sealed | 55 | Ishikawa, Souta (1477) | Lost 1-2 | -191500 |
| 7sealed | 200 | Kamekawa, Masashi (1595) | Won 2-0 | +201520 |
| 8sealed | 190 | Isayama, Yusuke (1635) | Won 2-0 | +201540 |
| 9sealed | 226 | Asakura, Yoshitomo (1578) | Lost 1-2 | -181522 |
| average opponent: 1524record: 6-3 | new rating: 1522 | |||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 406 | Irie, Shun (1567) | Lost 1-2 | -171483 |
| 2modern | 580 | Amano, Makoto (1382) | Lost 0-2 | -201463 |
| average opponent: 1474record: 0-2 | new rating: 1463 | |||