Miyachi, Kenta
Current rating: 1479
Record: 11-12
| Grand Prix Yokohama 2019 (modern) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 772 | Jiao, Chang (1479) | Lost 1-2 | -191516 |
| 2modern | 840 | Tominaga, Yoshiaki (1482) | Lost 0-2 | -191497 |
| 3modern | 1213 | Ishiwata, Hyuuma (1461) | Lost 1-2 | -181479 |
| top | average opponent: 1474record: 0-3 | new rating: 1479 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 452 | Tsunoda, Masaki (1500) | Won 2-0 | +171573 |
| 2legacy | 171 | Takeda, Kengo (1520) | Lost 1-2 | -191554 |
| 3legacy | 837 | Yasumoto, Hisayoshi (1483) | Lost 1-2 | -191535 |
| top | average opponent: 1501record: 1-2 | new rating: 1535 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 767 | Katsura, Yuu (1500) | Won 2-0 | +181517 |
| 2sealed | 722 | Ookawara, Kunio (1518) | Won 2-1 | +181535 |
| 3sealed | 763 | Nakatani, Hiroki (1610) | Lost 0-2 | -171518 |
| 4sealed | 964 | Kitada, Yuichi (1519) | Won 2-1 | +181536 |
| 5sealed | 787 | Yamamoto, Sadaaki (1468) | Won 2-0 | +171553 |
| 6sealed | 712 | Takahashi, Akihiro (1505) | Won 2-0 | +171570 |
| 7sealed | 706 | Masaki, Yuuki (1576) | Won 2-1 | +181588 |
| 8sealed | 848 | Kawaguchi, Kyouhei (1809) | Lost 0-2 | -141574 |
| 9sealed | 872 | Hashimoto, Akio (1572) | Lost 1-2 | -181556 |
| top | average opponent: 1564record: 6-3 | new rating: 1556 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 379 | Mukai, Shinichi (1500) | Won 2-0 | +181518 |
| 2modern | 19 | Tanaka, Hayato (1520) | Lost 0-2 | -181500 |
| 3modern | 493 | Suzuki, Ryuuichi (1590) | Won 2-1 | +201520 |
| 4modern | 273 | Hiramatsu, Mamoru (1592) | Lost 1-2 | -171503 |
| 5modern | 437 | Aoki, Masahiro (1501) | Lost 1-2 | -181485 |
| 6modern | 532 | Ootsuka, Yuuji (1434) | Won 2-0 | +171502 |
| 7modern | 332 | Kato, Yusuke (1400) | Lost 0-2 | -201482 |
| 8modern | 343 | Kugi, Takeshi (1410) | Won 2-0 | +171499 |
| top | average opponent: 1493record: 4-4 | new rating: 1499 | ||