Tsumagari, Hideya
Current rating: 1411
Record: 3-9
| Grand Prix Kitakyushu 2005 (extended) | starting rating: 1392 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 57 | Iwasaki, Yusuke (1500) | Won 2-0 | +201412 |
| 2extended | 47 | Shimoji, Ai (1603) | Won 2-0 | +221434 |
| 3extended | 28 | Yasukawa, Kazuhide (1529) | Lost 1-2 | -161418 |
| 4extended | 81 | Furukawa, Kazuya (1515) | Won 2-1 | +191437 |
| 5extended | 56 | Hirabayashi, Kazuya (1923) | Lost 1-2 | -101427 |
| 6extended | 66 | Fujimoto, Tatsuya (1519) | Lost 0-2 | -161411 |
| average opponent: 1598record: 3-3 | new rating: 1411 | |||
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 59 | Jisang, Kang (1410) | Lost 0-2 | -201480 |
| 3extended | 134 | Yasufuku, Akihiro (1498) | Lost 1-2 | -171463 |
| 4extended | 140 | Tamura, Kazuhiro (1482) | Lost 0-2 | -181445 |
| 5extended | 174 | Vanderburg, Aaron B (1467) | Lost 0-1 | -181427 |
| 6extended | 154 | Kawabata, Tomoyuki (1463) | Lost 0-2 | -171410 |
| 7extended | 130 | Kumage, Isao (1427) | Lost 1-2 | -181392 |
| average opponent: 1458record: 0-6 | new rating: 1392 | |||