Yamamoto, Hideaki
Current rating: 1540
Record: 9-7
| Grand Prix Kobe 2017 (modern) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 656 | Ootake, Takeshi (1666) | Won 2-1 | +211541 |
| 2modern | 223 | Belanger, Zenon (1518) | Won 2-0 | +171558 |
| 3modern | 370 | Suda, Kazuho (1492) | Won 2-0 | +171575 |
| 4modern | 189 | Wang, Jiaqing (1509) | Won 2-0 | +171592 |
| 5modern | 29 | Maruyama, Satoshi (1695) | Lost 1-2 | -161576 |
| 6modern | 263 | Ichimura, Naoya (1557) | Lost 1-2 | -191557 |
| 7modern | 400 | Mori, Yohei (1537) | Won 2-0 | +181575 |
| 8modern | 324 | Koseki, Kouta (1573) | Lost 1-2 | -181557 |
| 9modern | 448 | Isurugi, Hideyuki (1599) | Lost 0-2 | -171540 |
| average opponent: 1572record: 5-4 | new rating: 1540 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 86 | Ishikawa, Ryota (1469) | Won 2-0 | +171517 |
| 2sealed | 106 | Yagawa, Masataka (1590) | Lost 0-2 | -161501 |
| 3sealed | 431 | Kasama, Junichi (1403) | Won 2-1 | +161517 |
| 4sealed | 262 | Murae, Ryuji (1742) | Won 2-1 | +221539 |
| 5sealed | 188 | U, Kashin (1463) | Lost 0-2 | -191520 |
| 6sealed | 195 | Takami, Yuta7701 (1485) | Won 2-0 | +171537 |
| 7sealed | 193 | Hirokawa, Tatsuya (1595) | Lost 0-2 | -171520 |
| average opponent: 1535record: 4-3 | new rating: 1520 | |||