Idei, Kunihiko
Current rating: 1442
Record: 4-7-1
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 39 | Tamura, Youhei (1463) | Lost 0-2 | -181479 |
| 2block | 340 | Yoshizawa, Hiromi (1323) | Lost 1-2 | -211458 |
| 3block | 336 | Tanaka, Yousuke (1591) | Draw 1-1 | +21460 |
| 4block | 360 | Bandou, Kouta (1465) | Lost 0-2 | -171443 |
| 5block | 348 | Yoshida, Tetsuhide (1444) | Lost 0-2 | -181425 |
| 6block | 301 | Kato, Shosuke (1411) | Won 2-0 | +171442 |
| average opponent: 1450record: 1-4-1 | new rating: 1442 | |||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 112 | Nakagawa, Tomohiko (1500) | Won 2-0 | +181518 |
| 2block | 307 | Kondo, Mitsuhiro (1500) | Won 1-0 | +181536 |
| 3block | 22 | Nakanishi, Hiroyuki (1518) | Lost 0-2 | -191517 |
| 4block | 213 | Sakamoto, Kazuya (1500) | Lost 0-2 | -181499 |
| 5block | 473 | Sasaki, Yusuke (Tokyo) (1409) | Lost 1-2 | -201479 |
| 6block | 464 | Abe, Yasuto (1482) | Won 2-0 | +181497 |
| average opponent: 1485record: 3-3 | new rating: 1497 | |||