Keduka, Tomohiko
Current rating: 1502
Record: 6-6
| Grand Prix Sapporo 2002 (Odyssey block) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 92 | Sato, Kimihiko (1640) | Won 2-1 | +201519 |
| 3block | 70 | Kunisato, Ebie (1518) | Lost 0-2 | -181501 |
| 4block | 86 | Tamura, Katsuhiko (1536) | Lost 0-2 | -171484 |
| 5block | 150 | Sato, Takatoshi (1497) | Won 2-0 | +181502 |
| 6block | 79 | Ikeda, Kei (1581) | Won 2-0 | +201522 |
| 7block | 86 | Mikami, Iesato (1422) | Lost 1-2 | -201502 |
| average opponent: 1532record: 3-3 | new rating: 1502 | |||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 116 | Takeuchi, Hijiri (1500) | Won 2-0 | +181518 |
| 2block | 32 | Takakuwa, Akihiro (1500) | Won 2-0 | +181536 |
| 3block | 230 | Nomura, Eiji (1481) | Lost 0-2 | -191517 |
| 4block | 297 | Tashiro, Yoshiaki (1517) | Won 2-0 | +181535 |
| 5block | 168 | Yamaguchi, Hiroshi (1537) | Lost 1-2 | -181517 |
| 6block | 197 | Isobe, Teruhiko (1518) | Lost 1-2 | -181499 |
| average opponent: 1509record: 3-3 | new rating: 1499 | |||