Oiwa, Tadashi
Current rating: 1498
Record: 4-4
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 46 | Oonishi, Natsuki (1500) | Lost 0-2 | -181482 |
| 2block | 447 | Tani, Tokuo (1429) | Won 2-0 | +171499 |
| 3block | 479 | Usami, Yukihiro (1483) | Lost 0-2 | -181481 |
| 4block | 549 | Kaneko, Takefumi (1482) | Won 2-1 | +181499 |
| 5block | 327 | Saeki, Norifumi (1500) | Won 2-1 | +181517 |
| 6block | 298 | Tsuno, Takahiro (1519) | Won 2-1 | +181535 |
| 7block | 169 | Nakamura, Yusuke (1500) | Lost 0-2 | -191516 |
| 8block | 221 | Enomoto, Takatoshi (1518) | Lost 0-2 | -181498 |
| average opponent: 1491record: 4-4 | new rating: 1498 | |||