Hasegawa, Shigeyuki
Current rating: 1490
Record: 11-13-3
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 129 | Ogasawara, Daisuke (1500) | Won 2-1 | +171546 |
| 2standard | 67 | Tanaka, Yu (1547) | Lost 0-2 | -181528 |
| 3standard | 278 | Takeda, Hiroki (1551) | Lost 0-2 | -171511 |
| 4standard | 360 | Saito, Yoshihiro (1480) | Lost 0-2 | -191492 |
| 5standard | 356 | Matsuo, Keita (1402) | Won 2-0 | +171509 |
| 6standard | 300 | Suzuki, Gou (1469) | Lost 1-2 | -191490 |
| top | average opponent: 1491record: 2-4 | new rating: 1490 | ||
| Grand Prix Yamagata 2006 (TSP limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 80 | Abe, Eriko (1500) | Won 2-0 | +171542 |
| 2sealed | 77 | Perez Paez, Oscar (1696) | Lost 0-2 | -151527 |
| 3sealed | 63 | Matsushita, Masakazu (1648) | Draw 1-1 | +21529 |
| 4sealed | 118 | Yanase, Kaname (1513) | Draw 1-1 | 01529 |
| top | average opponent: 1589record: 1-1-2 | new rating: 1529 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 121 | Takahashi, Kazunari (1507) | Won 2-1 | +191484 |
| 2block | 52 | Hasegawa, Hironobu (1520) | Won 2-0 | +181502 |
| 3block | 21 | Shibata, Toshiya (1619) | Won 2-0 | +201522 |
| 4block | 54 | Kaji, Tomohiro (1880) | Won 2-0 | +251547 |
| 5block | 8 | Ikeda, Tsuyoshi (1784) | Lost 1-2 | -141533 |
| 6block | 31 | Yamaguchi, Yuuichi (1632) | Lost 0-2 | -161517 |
| 7block | 98 | Nakao, Munenari (1568) | Won 2-0 | +191536 |
| 8block | 40 | Shimura, Ichirou (1939) | Lost 0-2 | -111525 |
| top | average opponent: 1681record: 5-3 | new rating: 1525 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3 | Ono, Ippei (1578) | Lost 1-2 | -161481 |
| 2sealed | 197 | Boku, Takashi (1398) | Won 2-1 | +161497 |
| 3sealed | 157 | Mori, Takashi (1532) | Lost 0-2 | -171480 |
| 4sealed | 257 | Igeta, Hirofumi (1645) | Lost 0-2 | -151465 |
| top | average opponent: 1538record: 1-3 | new rating: 1465 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 55 | Murakami, Kazuki (1500) | Won 2-1 | +181518 |
| 2sealed | 133 | Kobayashi, Akihito (1358) | Lost 0-2 | -211497 |
| 3sealed | 144 | Kashiwagura, Naoto (1503) | Draw 1-1 | 01497 |
| 4sealed | 154 | Kitazawa, Kiyohiro (1499) | Lost 0-2 | -181479 |
| 5sealed | 184 | Akiba, Masakazu (1482) | Won 2-0 | +181497 |
| top | average opponent: 1468record: 2-2-1 | new rating: 1497 | ||