Matsumoto, Atsushi
Current rating: 1462
Record: 4-6
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 806 | Ikeda, Hiroaki (1431) | Lost 0-2 | -191464 |
| 2sealed | 932 | Matsumura, Hideyuki (1438) | Lost 1-2 | -191445 |
| 3sealed | 1070 | Matsushima, Kenta (1463) | Won 2-1 | +191464 |
| 4sealed | 1036 | Shimamura, Kazushi (1416) | Won 2-0 | +171481 |
| 5sealed | 891 | Sato, Koji (1457) | Lost 1-2 | -191462 |
| average opponent: 1441record: 2-3 | new rating: 1462 | |||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 356 | Hattori, Kazuki (1500) | Won 2-0 | +181518 |
| 2modern | 250 | Saito, Shohei (1500) | Won 2-1 | +181536 |
| 3modern | 177 | Koshimura, Takeshi (1470) | Lost 0-1 | -201516 |
| 4modern | 364 | Ohnishi, Jyunpei (1519) | Lost 0-2 | -171499 |
| 5modern | 372 | Endo, Jun'Ichi (1620) | Lost 0-2 | -161483 |
| average opponent: 1522record: 2-3 | new rating: 1483 | |||