Hamasaki, Kazuhisa
Current rating: 1488
Record: 5-6
| Grand Prix Yokohama 2019 (modern) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 248 | Daikai, Rikiya (1521) | Lost 0-2 | -191525 |
| 2modern | 967 | Masuhara, Hiroshi (1482) | Lost 1-2 | -181507 |
| 3modern | 1080 | Takahashi, Haruki 9522 (1469) | Lost 1-2 | -191488 |
| average opponent: 1491record: 0-3 | new rating: 1488 | |||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 570 | Watanabe, Kyohei (1634) | Lost 1-2 | -161484 |
| 2standard | 765 | Sonoda, Kenichi (1395) | Won 2-1 | +171501 |
| 3standard | 799 | Horita, Yoshiteru (1501) | Won 2-0 | +181519 |
| 4standard | 727 | Suzuki, Masahiro (1742) | Won 2-0 | +221541 |
| 5standard | 310 | Fujita, Toshihide (1721) | Lost 0-2 | -151526 |
| 6standard | 675 | Takeda, Hiroki (1641) | Lost 0-2 | -161510 |
| 7standard | 733 | Tachibana, Korechika (1390) | Won 2-1 | +161526 |
| 8standard | 591 | Tateno, Shun (1516) | Won 2-0 | +181544 |
| average opponent: 1567record: 5-3 | new rating: 1544 | |||