Usui, Yuuka
Current rating: 1396
Record: 1-7
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 176 | Wakao, Takumi (1541) | Lost 0-2 | -161429 |
| 2pioneer | 596 | Iwasaki, Junya (1546) | Lost 0-2 | -161413 |
| 3pioneer | 820 | Miyao, Kento (1463) | Lost 0-2 | -171396 |
| average opponent: 1517record: 0-3 | new rating: 1396 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 411 | Taniguchi, Yu (1500) | Lost 0-2 | -181482 |
| 2sealed | 373 | Misumi, Yasuhiro (1482) | Won 2-1 | +181500 |
| 3sealed | 282 | Kamata, Toshihiko (1487) | Lost 0-2 | -181482 |
| 4sealed | 457 | Satou, Genki (1452) | Lost 0-2 | -191463 |
| 5sealed | 434 | Yamamoto, Masafumi (1446) | Lost 0-2 | -181445 |
| average opponent: 1474record: 1-4 | new rating: 1445 | |||