Miyaguchi, Hiroki
Current rating: 1513
Record: 16-18
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 301 | Mune, Kento (1628) | Lost 0-2 | -151491 |
| 3sealed | 964 | Yamazaki, Hiroyuki (1627) | Won 2-0 | +201511 |
| 4sealed | 745 | Takino, Shohei (1517) | Won 2-1 | +181529 |
| 5sealed | 243 | Kawahara, Masanobu (1424) | Won 2-0 | +161545 |
| 6sealed | 298 | Miwa, Ryou (1721) | Lost 1-2 | -151530 |
| 7sealed | 272 | Kamishiro, Issey (1547) | Lost 0-2 | -171513 |
| top | average opponent: 1577record: 3-3 | new rating: 1513 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1458 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 21 | Tanaka, Tomonori (1377) | Won 2-0 | +171475 |
| 2standard | 198 | Seno, Takuto (1631) | Won 2-0 | +211496 |
| 3standard | 314 | Charm, Derek (1626) | Won 2-1 | +201516 |
| 4standard | 109 | Itou, Akihiro (1552) | Won 2-1 | +191535 |
| 5standard | 25 | Matsumoto, Fumiya (1764) | Lost 0-2 | -141521 |
| 6standard | 92 | Tomioka, Shota (1602) | Lost 0-2 | -171504 |
| 7standard | 443 | Hasegawa, Suguru (1578) | Won 2-0 | +201524 |
| 8standard | 181 | Yamamoto, Kazuaki (1524) | Won 2-1 | +181542 |
| 9standard | 109 | Konda, Tsuyoshi (1633) | Lost 0-2 | -171525 |
| 10standard | 145 | Honda, Rintaro (1872) | Lost 0-2 | -121513 |
| 11standard | 167 | Kawata, Kazuki (1554) | Won 2-1 | +191532 |
| 12standard | 158 | Ishikawa, Hayate (1491) | Lost 0-2 | -191513 |
| 13standard | 146 | Takesue, Chikara (1697) | Lost 1-2 | -141499 |
| 14standard | 148 | Semkin, Alexander (1761) | Won 2-1 | +221521 |
| 15standard | 144 | Morita, Yo (1683) | Lost 1-2 | -151506 |
| top | average opponent: 1623record: 8-7 | new rating: 1506 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 257 | Oota, Kyousuke (1500) | Won 2-0 | +181505 |
| 2legacy | 13 | Kurata, Yoshihiko (1543) | Won 2-0 | +191524 |
| 3legacy | 183 | Matsumura, Toshikazu (1635) | Won 2-1 | +201544 |
| 4legacy | 110 | Nishizawa, Taichi (1657) | Lost 1-2 | -161528 |
| 5legacy | 99 | Tanaka, Syunya (1439) | Lost 0-2 | -201508 |
| 6legacy | 372 | Takeuchi, Yusuke (1502) | Lost 1-2 | -181490 |
| 7legacy | 337 | Nuruki, Hiroaki (1791) | Lost 1-2 | -131477 |
| 8legacy | 364 | Tazawa, Takatoshi (1425) | Lost 1-2 | -191458 |
| top | average opponent: 1562record: 3-5 | new rating: 1458 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 322 | Odachi, Takuhei (1501) | Won 2-1 | +181518 |
| 2sealed | 435 | Moriya, Toshihiko (1717) | Won 2-1 | +221540 |
| 3sealed | 98 | Sasao, Yusuke (1687) | Lost 1-2 | -161524 |
| 4sealed | 418 | Sezume, Akihiro (1479) | Lost 1-2 | -191505 |
| 5sealed | 710 | Hato, Ryo (1470) | Lost 0-2 | -181487 |
| top | average opponent: 1571record: 2-3 | new rating: 1487 | ||