Yamaya, Hiroki
Current rating: 1399
Record: 3-10
| Grand Prix Chiba 2016 (legacy) | starting rating: 1396 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 303 | Chong, Kelvin (1402) | Won 2-0 | +181414 |
| 2legacy | 493 | Kojima, Youichiro (1491) | Lost 1-2 | -171397 |
| 3legacy | 821 | Tanigawa, Kenichirou (1407) | Lost 0-2 | -181379 |
| 4legacy | 1036 | Nanamori, Kouhei (1602) | Lost 0-2 | -141365 |
| 5legacy | 1076 | Hikita, Naoki (1466) | Won 2-0 | +201385 |
| 6legacy | 908 | Okada, Wataru (1795) | Won 2-1 | +251410 |
| 7legacy | 841 | Freedman, Henry (1779) | Lost 0-2 | -111399 |
| top | average opponent: 1563record: 3-4 | new rating: 1399 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1429 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1146 | Ogura, Syunichi (1521) | Lost 0-2 | -171412 |
| 2sealed | 1388 | Kawakami, Takumi (1483) | Lost 1-2 | -161396 |
| top | average opponent: 1502record: 0-2 | new rating: 1396 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 186 | Fukuda, Touma (1458) | Lost 0-2 | -171429 |
| top | record: 0-1 | new rating: 1429 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1026 | Takao, Syunya (1500) | Lost 1-2 | -181482 |
| 2sealed | 965 | Iriki, Ryou (1503) | Lost 1-2 | -181464 |
| 3sealed | 1108 | Arai, Kazuki (1464) | Lost 1-2 | -181446 |
| top | average opponent: 1489record: 0-3 | new rating: 1446 | ||