Iwamoto, Shota
Current rating: 1519
Record: 9-8
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 184 | Mitsumori, Masahiko (1500) | Lost 0-2 | -171481 |
| 2block | 493 | Gotou, Hiroaki (1482) | Won 2-0 | +181499 |
| 3block | 498 | Izumi, Shinji (1501) | Won 2-0 | +181517 |
| 4block | 320 | Oosaki, Masakazu (1518) | Won 2-0 | +181535 |
| 5block | 214 | Ohno, Hokuto (1535) | Won 2-0 | +181553 |
| 6block | 153 | Itou, Kenshirou (1659) | Lost 1-2 | -161537 |
| 7block | 215 | Tanikawa, Itaru (1505) | Won 2-1 | +171554 |
| 8block | 116 | Higono, Naoki (1607) | Lost 1-2 | -171537 |
| 9block | 149 | Uchimura, Takahiko (1536) | Lost 1-2 | -181519 |
| average opponent: 1538record: 5-4 | new rating: 1519 | |||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 40 | Miyahsita, Yuta (1500) | Won 2-0 | +181518 |
| 2extended | 60 | Nozue, Akihiro (1518) | Lost 0-2 | -181500 |
| 3extended | 265 | Nishimura, Sho (1500) | Won 2-0 | +181518 |
| 4extended | 108 | Taniyama, Shunsuke (1518) | Lost 0-2 | -181500 |
| 5extended | 169 | Shikata, Nobuaki (1463) | Won 2-0 | +171517 |
| 6extended | 161 | Ogawa, Hidetoshi (1518) | Won 2-1 | +181535 |
| 7extended | 132 | Fujieda, Isamu (1484) | Lost 0-2 | -191516 |
| 8extended | 113 | Okamoto, Takahiro (1520) | Lost 1-2 | -181498 |
| average opponent: 1503record: 4-4 | new rating: 1498 | |||