Ito, Kohei
Current rating: 1608
Record: 16-10-1
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 183 | Shimizu, Motohiro (1500) | Won 2-0 | +171554 |
| 2sealed | 69 | Miyauchi, Makoto (1577) | Lost 0-2 | -181536 |
| 3sealed | 237 | Inoue, Toshiya (1565) | Won 2-1 | +191555 |
| 4sealed | 169 | Yamashita, Hiroki (1527) | Won 2-1 | +171572 |
| 5sealed | 131 | Hashimoto, Yuu (Tokyo) (1506) | Won 2-1 | +171589 |
| 6sealed | 60 | Hamada, Takahiro (1541) | Won 2-1 | +171606 |
| 7sealed | 33 | Suzuki, Yasutomo (1593) | Lost 1-2 | -181588 |
| 8sealed | 128 | Yoshikawa, Yuusuke (1698) | Won 2-0 | +201608 |
| top | average opponent: 1563record: 6-2 | new rating: 1608 | ||
| Grand Prix Sapporo 2002 (Odyssey block) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 12 | Tani, Keisuke (1500) | Won 2-0 | +191482 |
| 2block | 9 | Hirakawa, Kenshiro (1500) | Lost 1-2 | -181464 |
| 3block | 135 | Sekiguchi, Minoru (1500) | Lost 1-2 | -171447 |
| 4block | 189 | Tani, Tokuo (1326) | Won 2-0 | +151462 |
| 5block | 124 | Sakamoto, Makoto (1499) | Won 2-1 | +191481 |
| 6block | 83 | Mita, Kohei (1501) | Won 2-1 | +191500 |
| 7block | 56 | Osanai, Yuki (1534) | Won 2-0 | +181518 |
| 8block | 34 | Yamauchi, Takashi (1540) | Won 2-1 | +191537 |
| top | average opponent: 1488record: 6-2 | new rating: 1537 | ||
| Grand Prix Shizuoka 2001 (ODY limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 108 | Nishikawa, Takahito (1533) | Lost 0-2 | -171481 |
| 2sealed | 216 | Imamura, Akihiko (1480) | Lost 1-2 | -181463 |
| 3sealed | 297 | Chiba, Masao (1464) | Draw 1-1 | 01463 |
| 4sealed | 299 | Tsukimoto, Kazuhiro (1460) | Won 2-0 | +181481 |
| 5sealed | 236 | Satou, Kenichi (1484) | Lost 0-2 | -181463 |
| top | average opponent: 1484record: 1-3-1 | new rating: 1463 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 208 | Yamada, Kenichi (1500) | Won 2-0 | +181518 |
| 2block | 1 | Amano, Hideaki (1454) | Lost 1-2 | -191499 |
| 3block | 329 | Yoshida, Masakazu (1500) | Won 2-0 | +181517 |
| 4block | 389 | Fujii, Tomo (1518) | Won 2-0 | +181535 |
| 5block | 237 | Tsujimura, Tsuyoshi (1538) | Lost 0-1 | -181517 |
| 6block | 336 | Tanikawa, Itaru (1487) | Lost 1-2 | -191498 |
| top | average opponent: 1499record: 3-3 | new rating: 1498 | ||