Ikeda, Yasumasa
Current rating: 1415
Record: 4-9
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 213 | Saito, Hajime (1554) | Won 2-1 | +201447 |
| 2block | 92 | Kodani, Ryousuke (1501) | Lost 1-2 | -171430 |
| 3block | 484 | Shimizu, Hiroyoshi (1499) | Lost 0-2 | -161414 |
| 4block | 579 | Morita, Masayuki (1397) | Won 2-1 | +171431 |
| 5block | 307 | Doi, Fumiaki (1513) | Lost 1-2 | -161415 |
| average opponent: 1493record: 2-3 | new rating: 1415 | |||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 128 | Konishi, Yuji (1500) | Lost 1-2 | -181482 |
| 2extended | 228 | Tani, Tokuo (1482) | Won 2-1 | +181500 |
| 3extended | 196 | Kawabata, Yuriko (1500) | Lost 1-2 | -181482 |
| 4extended | 274 | Hirasa, Kazuaki (1482) | Lost 1-2 | -181464 |
| 5extended | 261 | Terai, Hitoshi (1464) | Won 2-0 | +181482 |
| 6extended | 221 | Akiba, Satoshi (1482) | Lost 1-2 | -181464 |
| 7extended | 222 | Nakamura, Shigehiro (1463) | Lost 0-2 | -181446 |
| 8extended | 195 | Taniguchi, Atsushi (1398) | Lost 0-2 | -191427 |
| average opponent: 1471record: 2-6 | new rating: 1427 | |||