Yamazaki, Toshinari
Current rating: 1415
Record: 4-9
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 457 | Suzuki, Akinori (1500) | Lost 1-2 | -181446 |
| 2block | 457 | Ito, Kota (1482) | Won 2-0 | +191465 |
| 3block | 435 | Niwa, Toshiharu (1580) | Won 2-0 | +201485 |
| 4block | 304 | Yamada, Takamasa (1518) | Lost 0-2 | -171468 |
| 5block | 295 | Hara, Yasuharu (1499) | Lost 0-2 | -181450 |
| 6block | 396 | Yamada, Yasuyuki (1482) | Lost 0-2 | -171433 |
| 7block | 368 | Oizaki, Takahiro (1463) | Lost 1-2 | -181415 |
| average opponent: 1503record: 2-5 | new rating: 1415 | |||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 147 | Ooie, Tatsuya (1500) | Won 2-1 | +181518 |
| 2extended | 74 | Minagawa, Yu (1518) | Lost 0-2 | -181500 |
| 3extended | 256 | Imura, Kazuo (1500) | Lost 0-2 | -181482 |
| 4extended | 237 | Wada, Yuta (1465) | Lost 1-2 | -181464 |
| 5extended | 293 | Nakajima, Masami (1464) | Won 2-1 | +181482 |
| 6extended | 250 | Aoki, Takashi (1482) | Lost 1-2 | -181464 |
| average opponent: 1488record: 2-4 | new rating: 1464 | |||