Miyakawa, Toshihiro
Current rating: 1556
Record: 23-19
| Grand Prix Kobe 2017 (modern) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 116 | Imose, Yoneshige (1510) | Won 2-1 | +171585 |
| 2modern | 172 | Ueda, Takushi (1451) | Won 2-1 | +161601 |
| 3modern | 675 | Sawada, Ryo (1384) | Won 2-0 | +141615 |
| 4modern | 163 | Takeda, Daisuke (1575) | Won 2-1 | +171632 |
| 5modern | 150 | Mishima, Naohiro (1539) | Lost 1-2 | -191613 |
| 6modern | 385 | Takadera, Toshihisa (1494) | Lost 0-2 | -211592 |
| 7modern | 389 | Asakura, Yoshitomo (1626) | Lost 1-2 | -171575 |
| 8modern | 623 | Hannuki, Yuya (1500) | Lost 1-2 | -191556 |
| top | average opponent: 1510record: 4-4 | new rating: 1556 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 753 | Ozturk, Deren (1531) | Won 2-0 | +181554 |
| 2legacy | 570 | Koga, Ryuji (1495) | Won 2-0 | +161570 |
| 3legacy | 605 | Nanamori, Kouhei (1564) | Lost 0-2 | -181552 |
| 4legacy | 700 | Kobayashi, Akihiro (1552) | Won 2-1 | +181570 |
| 5legacy | 633 | Tashiro, Kouichi (1686) | Won 2-0 | +201590 |
| 6legacy | 543 | Clark, Anthonlee (1489) | Lost 1-2 | -191571 |
| 7legacy | 690 | Nishimura, Masateru (1538) | Won 2-1 | +171588 |
| 8legacy | 614 | Muto, Shogo (1507) | Lost 1-2 | -201568 |
| top | average opponent: 1545record: 5-3 | new rating: 1568 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 117 | Ha, Sang-Mook (1439) | Lost 1-2 | -201539 |
| 2sealed | 260 | Hibino, Kouzou (1445) | Lost 0-2 | -201519 |
| 3sealed | 386 | Shibafuji, Shunsuke (1530) | Won 2-0 | +181537 |
| 4sealed | 355 | Takao, Syunya (1506) | Won 2-0 | +181555 |
| 5sealed | 196 | Yamamoto, Ryo (1501) | Lost 0-2 | -191536 |
| top | average opponent: 1484record: 2-3 | new rating: 1536 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 86 | Hasegawa, Kazuhiko7811 (1642) | Won 2-1 | +211520 |
| 2standard | 83 | Hioki, Takuro (1471) | Won 2-0 | +171537 |
| 3standard | 155 | Yoshida, Shunsuke (1534) | Won 2-0 | +181555 |
| 4standard | 44 | Ishigaki, Ryousuke (1539) | Won 2-1 | +171572 |
| 5standard | 18 | Yoshida, Koki (1530) | Won 2-0 | +181590 |
| 6standard | 24 | Yamao, Kazuhito (1531) | Lost 1-2 | -201570 |
| 7standard | 53 | Kou, Changsu (1785) | Won 2-0 | +221592 |
| 8standard | 30 | Ooneda, Yoshihiro (1639) | Lost 0-2 | -171575 |
| 9standard | 172 | Nitta, Yuki (1663) | Lost 1-2 | -161559 |
| top | average opponent: 1593record: 6-3 | new rating: 1559 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 280 | Yamada, Takaaki (1622) | Lost 1-2 | -171537 |
| 2standard | 340 | Toda, Kouhei (1482) | Lost 1-2 | -191518 |
| 3standard | 530 | Niitani, Nobuhide (1464) | Lost 0-2 | -191499 |
| top | average opponent: 1523record: 0-3 | new rating: 1499 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 398 | Fujimoto, Satoru (1500) | Won 2-1 | +181518 |
| 2modern | 393 | Sano, Keisuke (1500) | Won 2-1 | +181536 |
| 3modern | 70 | Daikai, Rikiya (1543) | Won 2-0 | +181554 |
| 4modern | 44 | Toyota, Shimpei (1609) | Lost 1-2 | -171537 |
| 5modern | 244 | Satou, Tsubasa (1425) | Lost 1-2 | -201517 |
| 6modern | 225 | Fujimoto, Tomoya (1546) | Won 2-1 | +181535 |
| 7modern | 247 | Kinugasa, Satoshi (1511) | Won 2-1 | +181553 |
| 8modern | 158 | Okamoto, Satoshi (1596) | Won 2-0 | +191572 |
| 9modern | 107 | Aoki, Masahiro (1573) | Lost 1-2 | -181554 |
| top | average opponent: 1534record: 6-3 | new rating: 1554 | ||