Matsumoto, Kei
Current rating: 1464
Record: 3-5-1
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 411 | Tsutsumi, Yasunori (1506) | Won 2-0 | +191482 |
| 2standard | 247 | Ishii, Taiyo (1520) | Lost 0-2 | -181464 |
| 3standard | 1096 | Hozuki, Atsushi (1412) | Draw 1-1 | -11463 |
| 4standard | 1095 | Nihei, Shougo (1500) | Lost 0-2 | -171446 |
| 5standard | 1310 | Ishizaki, Takuya (1466) | Won 2-0 | +181464 |
| 6standard | 1037 | Wen, Wei-Hsun (1540) | Won 2-0 | +201484 |
| 7standard | 753 | Soh, Yun Huei (1362) | Lost 1-2 | -201464 |
| average opponent: 1472record: 3-3-1 | new rating: 1464 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 249 | Tanabe, Kohei (1448) | Lost 0-2 | -191481 |
| 2sealed | 474 | Kamata, Toshihiko (1469) | Lost 1-2 | -181463 |
| average opponent: 1458record: 0-2 | new rating: 1463 | |||