Aizawa, Atsuo
Current rating: 1412
Record: 6-11-1
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 103 | Saito, Yoshihiro (1500) | Won 2-1 | +191464 |
| 2standard | 121 | Hiruma, Yuki (1520) | Lost 1-2 | -171447 |
| 3standard | 220 | Mori, Masatake (1446) | Lost 0-2 | -181429 |
| 4standard | 343 | Yamagata, Yutaro (1480) | Lost 1-2 | -171412 |
| top | average opponent: 1487record: 1-3 | new rating: 1412 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 164 | Suginaka, Toshio (1488) | Lost 0-2 | -181478 |
| 2sealed | 297 | Suzuki, Masayuki (1510) | Lost 1-2 | -171461 |
| 3sealed | 297 | Syouyama, Youhei (1578) | Lost 0-2 | -161445 |
| top | average opponent: 1525record: 0-3 | new rating: 1445 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3 | Kanazawa, Naoko (1370) | Lost 1-2 | -211478 |
| 2sealed | 145 | Akiba, Masakazu (1482) | Won 2-0 | +181496 |
| 3sealed | 111 | Kinoshita, Kouta (1500) | Lost 0-2 | -181478 |
| 4sealed | 207 | Ooya, Takumi (1487) | Won 2-1 | +191497 |
| 5sealed | 158 | Koyama, Shohei (1488) | Draw 1-1 | -11496 |
| top | average opponent: 1465record: 2-2-1 | new rating: 1496 | ||
| Grand Prix Sendai 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 34 | Ito, Masakazu (1500) | Won 2-1 | +181518 |
| 2extended | 79 | Ikeda, Yuichi (1500) | Lost 1-2 | -181500 |
| 3extended | 131 | Ootsuki, Masahiro (1483) | Lost 0-2 | -191481 |
| 4extended | 176 | Tsukahara, Yasuyuki (1464) | Won 2-1 | +181499 |
| 5extended | 132 | Mitsui, Hideo (1500) | Won 2-1 | +181517 |
| 6extended | 90 | Okada, Wataru (1487) | Lost 1-2 | -181499 |
| top | average opponent: 1489record: 3-3 | new rating: 1499 | ||