Mutaguchi, Kazuya
Current rating: 1372
Record: 3-10
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1441 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 413 | Sasaki, Shun (1342) | Lost 0-2 | -201421 |
| 2pioneer | 402 | Kawahara, Taku (1310) | Won 2-0 | +161437 |
| 3pioneer | 697 | Shinozaki, Takahiro (1479) | Lost 1-2 | -171420 |
| 4pioneer | 723 | Horie, Hiroshi (1518) | Won 2-1 | +201440 |
| 5pioneer | 482 | Matsuyama, Ryousuke (1636) | Lost 0-2 | -151425 |
| 6pioneer | 542 | Ishihama, Naoya (1428) | Lost 1-2 | -181407 |
| 7pioneer | 503 | Shiina, Daisuke (1330) | Lost 1-2 | -191388 |
| 8pioneer | 419 | Hashimoto, Keisuke (1493) | Lost 0-2 | -161372 |
| average opponent: 1442record: 2-6 | new rating: 1372 | |||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 208 | Isa, Yukifumi (1435) | Lost 1-2 | -191481 |
| 2standard | 493 | Okuhara, Yuuki (1406) | Lost 0-2 | -201461 |
| 3standard | 786 | Suzuki, Issei (1528) | Lost 1-2 | -161445 |
| 4standard | 825 | Nakagami, Takanori (1327) | Lost 1-2 | -201425 |
| 5standard | 790 | Ohta, Shinji (1345) | Won 2-1 | +161441 |
| average opponent: 1408record: 1-4 | new rating: 1441 | |||