Hasegawa, Masaki
Current rating: 1516
Record: 4-3
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 153 | Ueno, Kazuki (1465) | Lost 1-2 | -191481 |
| 2block | 378 | Hashimoto, Hajime (1482) | Won 2-1 | +181499 |
| 3block | 352 | Nonaka, Kentarou (1482) | Won 2-1 | +181517 |
| 4block | 390 | Yamaguchi, Tatsunori (1518) | Won 2-0 | +181535 |
| 5block | 164 | Yoshizawa, Ryouji (1538) | Lost 0-2 | -181517 |
| 6block | 277 | Nishimura, Norihito (1520) | Won 2-0 | +181535 |
| 7block | 138 | Harino, Takuichi (1473) | Lost 0-2 | -191516 |
| average opponent: 1497record: 4-3 | new rating: 1516 | |||