Masamoto, Hiromichi
Current rating: 1433
Record: 2-6
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1443 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 455 | Okuhara, Azumi (1500) | Lost 1-2 | -171426 |
| 2sealed | 761 | Kabe, Naoyuki (1404) | Won 2-1 | +181444 |
| 3sealed | 590 | Murayama, Kazuhiro (1451) | Won 2-0 | +181462 |
| 4sealed | 657 | Watanabe, Takefumi (1549) | Lost 1-2 | -161446 |
| 5sealed | 626 | Ebitani, Keisuke (1726) | Lost 0-2 | -131433 |
| average opponent: 1526record: 2-3 | new rating: 1433 | |||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 477 | Cheng, Jun (1412) | Lost 0-2 | -201480 |
| 2sealed | 779 | Komizo, Isao (1502) | Lost 0-2 | -171463 |
| 3sealed | 1092 | Mitsuhashi, Shou (1383) | Lost 1-2 | -201443 |
| average opponent: 1432record: 0-3 | new rating: 1443 | |||