Doi, Shirou
Current rating: 1489
Record: 5-6
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 60 | Kudou, Takuya (1557) | Won 2-0 | +191503 |
| 2sealed | 19 | Iwakami, Yuji (1499) | Lost 1-2 | -181485 |
| 3sealed | 180 | Minamimura, Yukihiro (1566) | Lost 1-2 | -171468 |
| 4sealed | 228 | Yamano, Tatsuto (1376) | Won 2-1 | +171485 |
| 5sealed | 202 | Yoshimori, Sho (1685) | Lost 0-2 | -151470 |
| 6sealed | 209 | shyouta, omoto (1485) | Won 2-1 | +191489 |
| average opponent: 1528record: 3-3 | new rating: 1489 | |||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 148 | Hasegawa, Shunsuke (1500) | Won 2-0 | +181518 |
| 2sealed | 122 | Honma, Wataru (1500) | Lost 0-2 | -181500 |
| 3sealed | 124 | Yoda, Yuuji (1482) | Lost 0-2 | -191481 |
| 4sealed | 184 | Kanazawa, Isao (1482) | Won 2-0 | +181499 |
| 5sealed | 119 | Shibuya, Yuuto (1630) | Lost 1-2 | -151484 |
| average opponent: 1519record: 2-3 | new rating: 1484 | |||