Matsunaga, Kazuki
Current rating: 1486
Record: 12-14
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 175 | Sakurada, Taira (1500) | Won 2-1 | +191481 |
| 2sealed | 176 | Nakamura, Takatoshi (1515) | Lost 0-2 | -181463 |
| 3sealed | 220 | Nitta, Yuki (1489) | Won 2-0 | +191482 |
| 4sealed | 167 | Kawase, Yasuhiro (1469) | Won 2-0 | +171499 |
| 5sealed | 52 | Watanabe, Kazuki (1612) | Won 2-1 | +211520 |
| 6sealed | 29 | Ozawa, Takeshi (1662) | Lost 0-2 | -161504 |
| 7sealed | 93 | Amino, Kaoru (1510) | Lost 0-2 | -181486 |
| top | average opponent: 1537record: 4-3 | new rating: 1486 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 117 | Nakamura, Takahiro (1701) | Won 0-0 | +231476 |
| 2sealed | 63 | Okada, Hiroaki (1571) | Won 2-1 | +191495 |
| 3sealed | 72 | Kawanishi, Akio (1559) | Lost 1-2 | -161479 |
| 4sealed | 90 | Itano, Yoshihiro (1523) | Lost 0-2 | -181461 |
| 5sealed | 180 | Nakamura, Hirobumi (1461) | Won 2-0 | +181479 |
| 6sealed | 19 | Tanaka, Ittoku (1510) | Lost 0-2 | -171462 |
| top | average opponent: 1554record: 3-3 | new rating: 1462 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 90 | Takanashi, Yoshiki (1456) | Won 2-0 | +181489 |
| 2sealed | 62 | Anan, Kazuyoshi (1520) | Lost 0-2 | -181471 |
| 3sealed | 116 | Mino, Tetsuya (1471) | Lost 0-2 | -181453 |
| top | average opponent: 1482record: 1-2 | new rating: 1453 | ||
| Grand Prix Kitakyushu 2005 (extended) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 46 | Fujikawa, Yousuke (1500) | Lost 0-2 | -181470 |
| 2extended | 73 | Mera, Kenichi (1478) | Lost 0-2 | -181452 |
| 3extended | 109 | Yamazaki, Hiroyuki (1498) | Won 2-0 | +191471 |
| 4extended | 109 | Mizuno, Akimitsu (1367) | Won 2-0 | +161487 |
| 5extended | 92 | Shimoji, Ai (1577) | Lost 0-2 | -161471 |
| top | average opponent: 1484record: 2-3 | new rating: 1471 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 3 | Miyazaki, Hidetaka (1569) | Won 2-0 | +191519 |
| 5sealed | 15 | Otsuka, Kotaro (1620) | Won 2-1 | +201539 |
| 6sealed | 4 | Kubota, Yuuhi (1652) | Lost 0-2 | -161523 |
| 7sealed | 40 | Fukui, Yohei (1547) | Lost 0-2 | -171506 |
| 8sealed | 74 | Ushie, Yuuta (1529) | Lost 1-2 | -181488 |
| top | average opponent: 1584record: 2-3 | new rating: 1488 | ||