Itou, Kouhei
Current rating: 1436
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 227 | Tsujimoto, Susumu (1528) | Lost 0-2 | -171471 |
| 2standard | 285 | Lee, Chia (1564) | Lost 0-2 | -171454 |
| 3standard | 320 | Katayama, Keiji (1463) | Lost 0-2 | -181436 |
| top | average opponent: 1518record: 0-3 | new rating: 1436 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 88 | Yagi, Hiroyuki (1558) | Won 2-0 | +191523 |
| 2block | 7 | Masuno, Ryosuke (1542) | Lost 0-2 | -181505 |
| 3block | 105 | Nakamura, Masanori (1536) | Lost 1-2 | -171488 |
| top | average opponent: 1545record: 1-2 | new rating: 1488 | ||
| Grand Prix Matsuyama 2005 (BOK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 105 | Koyama, Kenta (1473) | Lost 0-2 | -181482 |
| 2sealed | 162 | Satou, Yoshirou (1481) | Won 2-1 | +171499 |
| 3sealed | 117 | Maeno, Ryuju (1549) | Won 2-1 | +191518 |
| 4sealed | 101 | Matsumura, Takehiko (1533) | Won 2-1 | +191537 |
| 5sealed | 55 | Ibamoto, Masami (1756) | Lost 1-2 | -141523 |
| 6sealed | 79 | Nakamura, Takahiro (1491) | Lost 1-2 | -191504 |
| top | average opponent: 1547record: 3-3 | new rating: 1504 | ||