Otomo, Seiichi
Current rating: 1536
Record: 8-6
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 16 | Sato, Kimihiko (1498) | Lost 0-2 | -191517 |
| 3block | 283 | Ishida, Naoyuki (1500) | Won 2-0 | +181535 |
| 4block | 349 | Nagamine, Kazuki (1518) | Won 2-0 | +181553 |
| 5block | 84 | Higashino, Masayuki (1652) | Lost 0-2 | -161537 |
| 6block | 196 | Oohashi, Toshiyuki (1518) | Won 2-1 | +171554 |
| 7block | 145 | Kaneko, Kentaro (1536) | Lost 0-2 | -181536 |
| average opponent: 1537record: 3-3 | new rating: 1536 | |||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 140 | Tsutsui, Toshinari (1500) | Won 2-0 | +181518 |
| 2extended | 155 | Nishioka, Tatsuya (1518) | Won 2-1 | +181536 |
| 3extended | 20 | Saka, Kenichiro (1536) | Lost 0-2 | -181518 |
| 4extended | 188 | Imura, Kazuo (1518) | Won 2-1 | +181536 |
| 5extended | 117 | Matsuzuki, Kyosuke (1536) | Lost 1-2 | -181518 |
| 6extended | 170 | Ohno, Hokuto (1517) | Won 2-1 | +181536 |
| 7extended | 126 | Mochizuki, Kazuhiro (1538) | Won 2-1 | +181554 |
| 8extended | 63 | Matsuda, Seiji (1556) | Lost 0-2 | -181536 |
| average opponent: 1527record: 5-3 | new rating: 1536 | |||