Sakamoto, Yutaka
Current rating: 1381
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 619 | Ota, Kyosuke (1449) | Lost 1-2 | -171397 |
| 2standard | 793 | Horie, Hiroshi (1482) | Lost 1-2 | -161381 |
| 3standard | 1265 | Nakamura, Kota (1456) | Won 2-0 | +191400 |
| 4standard | 1147 | Shimura, Takeshi (1299) | Lost 0-2 | -201380 |
| 5standard | 1165 | Kaido, Yoshiaki (1325) | Won 2-0 | +171397 |
| 6standard | 977 | Nakamura, Yuu (1502) | Lost 0-2 | -161381 |
| top | average opponent: 1419record: 2-4 | new rating: 1381 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 470 | Ogino, Junpei (1553) | Lost 1-2 | -161448 |
| 2standard | 1121 | Ebihara, Hirotaka (1552) | Lost 1-2 | -161432 |
| 3standard | 1645 | Takawashi, Shun'Ichi (1424) | Won 2-0 | +181450 |
| 4standard | 1388 | Hitomi, Keita (1480) | Lost 1-2 | -181432 |
| 5standard | 1433 | Kimbara, Shohei (1446) | Lost 1-2 | -181414 |
| top | average opponent: 1491record: 1-4 | new rating: 1414 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 521 | Moriya, Erika (1500) | Lost 1-2 | -181482 |
| 3standard | 837 | Hayashi, Masahito (1454) | Won 2-0 | +181500 |
| 4standard | 685 | Kousai, Ryousuke (1517) | Lost 0-2 | -181482 |
| 5standard | 756 | Nakamichi, Ichiro (1499) | Lost 1-2 | -181464 |
| top | average opponent: 1493record: 1-3 | new rating: 1464 | ||