Mukai, Koudai
Current rating: 1513
Record: 8-8
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 301 | Enomoto, Tatsuro (1500) | Won 2-0 | +181524 |
| 2pioneer | 91 | Watanabe, Kohei (1519) | Lost 1-2 | -181506 |
| 3pioneer | 574 | Mizuno, Hideki (1505) | Won 2-0 | +181524 |
| 4pioneer | 563 | Yamamura, Yuma (1792) | Won 2-0 | +221546 |
| 5pioneer | 206 | Sakuma, Takamichi (1441) | Won 2-0 | +161562 |
| 6pioneer | 152 | Numata, Yusuke (1759) | Lost 1-2 | -141548 |
| 7pioneer | 238 | Ine, Ryosuke (1480) | Lost 1-2 | -191529 |
| 8pioneer | 285 | Sugimura, Yoshiyasu (1655) | Lost 1-2 | -161513 |
| average opponent: 1581record: 4-4 | new rating: 1513 | |||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 194 | Hashimoto, Keisuke6106 (1469) | Lost 1-2 | -191481 |
| 2standard | 409 | Han, Bing (1939) | Lost 0-2 | -101471 |
| 3standard | 816 | Asao, Kazuki (1392) | Lost 1-2 | -191452 |
| 4standard | 816 | Katayama, Kojiro (1442) | Won 2-1 | +181470 |
| 5standard | 762 | Okuhama, Syuhei (1464) | Won 2-0 | +181488 |
| 6standard | 576 | Itakura, Kenichi (1327) | Lost 0-2 | -211467 |
| 7standard | 581 | Ishimaru, Ken (1699) | Won 2-1 | +221489 |
| 8standard | 459 | Tatebe, Takayuki (1435) | Won 2-1 | +171506 |
| average opponent: 1521record: 4-4 | new rating: 1506 | |||