Yamamoto, Masashi3201
Current rating: 1563
Record: 10-7
| Grand Prix Yokohama 2019 (modern) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 84 | Shigeta, Izumi (1527) | Lost 0-2 | -181503 |
| 2modern | 953 | Aoyama, Norimichi (1411) | Won 2-1 | +161519 |
| 3modern | 739 | Kanai, Makoto (1464) | Won 2-0 | +171536 |
| 4modern | 453 | Matsubara, Yuusuke (1572) | Won 2-0 | +191555 |
| 5modern | 169 | Satou, Marin (1655) | Won 2-0 | +201575 |
| 6modern | 93 | Nagao, Kengo (1890) | Lost 1-2 | -131562 |
| 7modern | 442 | Kosemura, Tomohiro (1568) | Lost 1-2 | -181544 |
| 8modern | 501 | Kashiwase, Kazuya (1575) | Won 2-1 | +191563 |
| average opponent: 1583record: 5-3 | new rating: 1563 | |||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 750 | Kamimura, Fumihiro (1590) | Lost 1-2 | -161484 |
| 2legacy | 811 | Marumo, Tsubasa (1481) | Won 2-0 | +181502 |
| 3legacy | 961 | Otsuka, Mitsuki (1501) | Won 2-1 | +181520 |
| 4legacy | 353 | Nagae, Nobuyasu (1438) | Won 2-1 | +161536 |
| 5legacy | 417 | Tada, Naoyuki (1491) | Lost 1-2 | -191517 |
| 6legacy | 636 | Okada, Naoya (1631) | Lost 1-2 | -161501 |
| 7legacy | 683 | Okubo, Yuya (1476) | Won 2-0 | +181519 |
| 8legacy | 552 | Kubo, Haruki (1415) | Lost 0-2 | -201499 |
| 9legacy | 634 | Mercier, Mathew (1713) | Won 2-1 | +221521 |
| average opponent: 1526record: 5-4 | new rating: 1521 | |||