Isogai, Yusuke
Current rating: 1443
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 654 | Kitauchi, Kazuya (1609) | Won 2-1 | +211452 |
| 2sealed | 267 | Huang, Yu Chung (1761) | Lost 0-2 | -131439 |
| 3sealed | 845 | Mita, Hiroki (1468) | Lost 1-2 | -171422 |
| 4sealed | 1064 | Matsuda, Taku (1492) | Won 2-1 | +191441 |
| 5sealed | 626 | Ao, Song (1493) | Won 2-1 | +191460 |
| 6sealed | 413 | Ikeda, Junichi (1519) | Lost 1-2 | -171443 |
| top | average opponent: 1557record: 3-3 | new rating: 1443 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 285 | Watanabe, Shotaro (1487) | Lost 0-2 | -181449 |
| 2modern | 660 | Iwasaki, Akira (1338) | Lost 1-2 | -201429 |
| 3modern | 1197 | Lessmann, Richard (1478) | Won 2-0 | +191448 |
| 4modern | 1056 | Ogawa, Mahito (1433) | Won 2-1 | +181466 |
| 5modern | 869 | Rioux, David (1466) | Lost 1-2 | -181448 |
| 6modern | 921 | Choi, Suouk (1476) | Lost 0-2 | -171431 |
| top | average opponent: 1447record: 2-4 | new rating: 1431 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 909 | Mitsunaga, Yuki (1487) | Lost 0-2 | -181482 |
| 2standard | 1222 | Takani, Takashi (1482) | Won 2-1 | +181500 |
| 3standard | 1326 | Yuichi, Tokunaga (1501) | Won 2-1 | +181518 |
| 4standard | 1011 | Higashi, Koutarou (1522) | Won 2-1 | +181536 |
| 5standard | 357 | Mizuno, Shiori (1386) | Lost 0-2 | -211515 |
| 6standard | 579 | Imai, Ayato (1826) | Lost 0-2 | -121503 |
| 7standard | 778 | Osanai, Takashi (1535) | Lost 0-2 | -181485 |
| 8standard | 988 | Takahashi, Akira (Katsushika) (1476) | Lost 1-2 | -181467 |
| top | average opponent: 1527record: 3-5 | new rating: 1467 | ||