Hatanaka, Masaki
Current rating: 1398
Record: 2-8
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 139 | Yoon, Sang-Woong (1558) | Lost 0-2 | -161429 |
| 2sealed | 870 | Kanda, Shigeru (1408) | Lost 0-2 | -191410 |
| 3sealed | 1028 | Okuhara, Yuuki (1473) | Won 2-0 | +191429 |
| 4sealed | 781 | Kashiwa, Tomohiro (1485) | Lost 0-2 | -171412 |
| 5sealed | 963 | Yamakita, Yuya (1619) | Lost 0-2 | -141398 |
| average opponent: 1509record: 1-4 | new rating: 1398 | |||
| Grand Prix Kobe 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 54 | Takase, Ryousuke (1500) | Lost 0-2 | -181482 |
| 2modern | 678 | Kunisada, Hayato (1482) | Lost 0-2 | -181464 |
| 3modern | 1290 | Rienzo, Mike (1420) | Won 2-0 | +171481 |
| 4modern | 1213 | Hiramitu, Ryosuke (1450) | Lost 1-2 | -181463 |
| 5modern | 1231 | Hisada, Yuki (1460) | Lost 0-2 | -181445 |
| average opponent: 1462record: 1-4 | new rating: 1445 | |||