Hachiya, Kota
Current rating: 1503
Record: 15-17-1
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 314 | Kanno, Atsushi (1634) | Lost 1-2 | -161461 |
| 3sealed | 937 | Tamaki, Akira (1497) | Won 2-1 | +191480 |
| 4sealed | 746 | Sawai, Fuka (1518) | Lost 1-2 | -171463 |
| 5sealed | 699 | Asahina, Takuya (1395) | Won 2-0 | +171480 |
| 6sealed | 667 | Takaki, Kazunari (1628) | Won 2-0 | +201500 |
| 7sealed | 231 | Inui, Takashi (1627) | Won 2-1 | +201520 |
| 8sealed | 310 | Fukushima, Hiromoto (1566) | Lost 0-2 | -171503 |
| top | average opponent: 1552record: 4-3 | new rating: 1503 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1459 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 520 | Izumi, Hikaru (1857) | Won 2-1 | +251484 |
| 3standard | 323 | Zhu, Yuxuan (1475) | Won 2-0 | +181502 |
| 4standard | 165 | Itou, Makoto3971 (1559) | Won 2-1 | +191521 |
| 5standard | 105 | Kiwanont, Sukhum (1715) | Lost 1-2 | -151506 |
| 6standard | 161 | Kawakami, Hiroshi (1667) | Lost 0-2 | -151491 |
| 7standard | 469 | Yamamura, Shouma (1528) | Won 2-1 | +191510 |
| 8standard | 292 | Yasunaka, Shinichi (1472) | Lost 0-2 | -191491 |
| 9standard | 546 | Kawaguchi, Takashi (1673) | Lost 0-2 | -141477 |
| top | average opponent: 1618record: 4-4 | new rating: 1477 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 627 | Aida, Kazuki (1496) | Won 2-1 | +191447 |
| 2standard | 488 | Yamasaki, Takumi (1545) | Lost 0-2 | -161431 |
| 3standard | 1159 | Otsubo, Yuma (1482) | Won 2-1 | +191450 |
| 4standard | 709 | Koyama, Noriki (1481) | Won 2-1 | +181468 |
| 5standard | 333 | Yamauchi, Takashi (1407) | Won 2-1 | +171485 |
| 6standard | 420 | Kato, Jun (1566) | Lost 0-2 | -161469 |
| 7standard | 686 | Wada, Kazunori (1566) | Won 2-0 | +191488 |
| 8standard | 311 | Arita, Kento (1808) | Lost 1-2 | -121476 |
| 9standard | 563 | Sugimoto, Taiki (1533) | Lost 0-2 | -171459 |
| top | average opponent: 1543record: 5-4 | new rating: 1459 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2091 | Cole, Lewis (1458) | Lost 0-2 | -181446 |
| 2sealed | 2392 | Watanabe, Kenta (1485) | Won 2-0 | +181464 |
| 3sealed | 2288 | Harada, Akio (1395) | Lost 0-2 | -191445 |
| 4sealed | 2321 | Masuda, Takumi (1482) | Lost 0-2 | -171428 |
| top | average opponent: 1455record: 1-3 | new rating: 1428 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 252 | Kasahara, Takuya (1500) | Won 2-1 | +181518 |
| 2sealed | 154 | Kim, Han-yong (1518) | Lost 0-2 | -181500 |
| 3sealed | 263 | Yokoyama, Jun'ichi (1465) | Draw 1-1 | -11499 |
| 4sealed | 345 | Kondou, Masayuki (1521) | Lost 0-2 | -171482 |
| 5sealed | 396 | Tanaka, Tomoya (1483) | Lost 1-2 | -181464 |
| top | average opponent: 1497record: 1-3-1 | new rating: 1464 | ||