Hasegawa, Kazuhiko7811
Current rating: 1621
Record: 23-15-2
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1617 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 431 | Tran, Dai (1485) | Won 2-1 | +151632 |
| 2standard | 433 | Morishita, Yoshihisa (1457) | Won 2-0 | +151647 |
| 3standard | 386 | Takahashi, Ryo 8120 (1539) | Lost 0-2 | -201627 |
| 4standard | 698 | Takeuchi, Shuuji (1538) | Lost 1-2 | -201607 |
| 5standard | 774 | Kaneko, Masashi (1611) | Won 2-1 | +191626 |
| 6standard | 707 | Kumura, Kazuya (1539) | Lost 1-2 | -201606 |
| 7standard | 884 | Kambe, Kojiro (1500) | Won 2-1 | +161622 |
| 8standard | 707 | Hattori, Kazuki (1623) | Lost 0-2 | -181604 |
| 9standard | 664 | Iwaide, Yoshitaka (1531) | Won 2-1 | +171621 |
| top | average opponent: 1536record: 5-4 | new rating: 1621 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1612 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 179 | Kojima, Tatuya (1505) | Draw 1-1 | -21610 |
| 2sealed | 264 | Miyoshi, Yasufumi (1412) | Won 2-1 | +141624 |
| 3sealed | 236 | Kawamura, Shintaro (1516) | Won 2-1 | +161640 |
| 4sealed | 116 | Fujii, Takashi (1640) | Lost 0-2 | -181622 |
| 5sealed | 226 | Hirose, Yoshiyuki (1534) | Lost 1-2 | -201602 |
| 6sealed | 304 | Matsumoto, Masaya (1475) | Won 2-1 | +161618 |
| 7sealed | 220 | Koyama, Kaoru (1569) | Won 2-1 | +171635 |
| 8sealed | 158 | Yasufuku, Akihiro (1643) | Lost 1-2 | -181617 |
| 9sealed | 152 | Shin, Jong-Ho (1575) | Draw 1-1 | 01617 |
| top | average opponent: 1541record: 4-3-2 | new rating: 1617 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1642 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 86 | Miyakawa, Toshihiro (1499) | Lost 1-2 | -201622 |
| 2standard | 238 | Hasebe, Shunichi (1482) | Won 2-1 | +151637 |
| 3standard | 201 | Kondo, Masahiro (1516) | Won 2-1 | +161653 |
| 4standard | 224 | Muramatsu, Yusuke (1518) | Lost 1-2 | -201633 |
| 5standard | 273 | Nakamura, Takehiro (1462) | Lost 0-2 | -211612 |
| top | average opponent: 1495record: 2-3 | new rating: 1612 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 956 | Yasu, Ryotaro (1500) | Won 2-1 | +181518 |
| 2sealed | 701 | Kamada, Masahiro (1561) | Won 2-0 | +191537 |
| 3sealed | 704 | Aida, Yasuki (1511) | Won 2-0 | +171554 |
| 4sealed | 658 | Sawai, Hiroshi (1549) | Won 2-0 | +181572 |
| 5sealed | 679 | Morita, Takanori (1571) | Won 2-1 | +181590 |
| 6sealed | 649 | Takano, Kouhei (1541) | Won 2-1 | +171607 |
| 7sealed | 650 | Oshima, Yuki (1571) | Won 2-1 | +181625 |
| 8sealed | 830 | Kanno, Atsushi (1769) | Won 2-1 | +201645 |
| 9sealed | 827 | Terada, Shuuhei (1716) | Lost 1-2 | -161629 |
| 10sealed | 34 | Kawashima, Hajime (1710) | Won 2-1 | +191648 |
| 11sealed | 18 | Hayashi, Shinsuke (1823) | Won 2-0 | +211669 |
| 12draft | 42 | Kitayama, Masaya (1871) | Lost 0-2 | -141655 |
| 13draft | 33 | Suzuki, Akiyoshi (1662) | Lost 0-2 | -181637 |
| 14draft | 37 | Kim, Cynic (1798) | Lost 0-2 | -151622 |
| 15draft | 26 | Matsumoto, Yuki1423 (1791) | Won 2-0 | +211643 |
| 16draft | 25 | Ueyama, Hideo (1620) | Won 2-0 | +171660 |
| 17draft | 17 | K., Haruki (1654) | Lost 1-2 | -181642 |
| top | average opponent: 1660record: 12-5 | new rating: 1642 | ||