Toyokawa, Yoshihiro
Current rating: 1444
Record: 4-7
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 178 | Matsuo, Koichiro (1548) | Lost 1-2 | -171500 |
| 2block | 466 | Sueda, Takeshi (1482) | Lost 1-2 | -191481 |
| 3block | 550 | Tanigawa, Ikuyo (1428) | Lost 0-2 | -191462 |
| 4block | 598 | Fukuda, Takashi (1448) | Lost 0-2 | -181444 |
| average opponent: 1477record: 0-4 | new rating: 1444 | |||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 179 | Hashimoto, Kengo (1500) | Won 2-1 | +181518 |
| 2extended | 119 | Okamoto, Takahiro (1500) | Won 2-1 | +181536 |
| 3extended | 59 | Okada, Wataru (1500) | Lost 0-2 | -191517 |
| 4extended | 93 | Oba, Yoshimitsu (1516) | Lost 1-2 | -181499 |
| 5extended | 181 | Ito, Masaki (1499) | Won 2-0 | +181517 |
| 6extended | 110 | Fujitsuka, Naoki (1518) | Won 2-1 | +181535 |
| 7extended | 82 | Nonaka, Masafumi (1535) | Lost 1-2 | -181517 |
| average opponent: 1510record: 4-3 | new rating: 1517 | |||