Hara, Katsuaki
Current rating: 1531
Record: 32-35-1
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 151 | Hirosawa, Yuuta (1684) | Lost 1-2 | -161535 |
| 4pioneer | 325 | Maeda, Dai (1398) | Won 2-1 | +161551 |
| 5pioneer | 180 | Takasou, Kazuki (1436) | Lost 1-2 | -201531 |
| 6pioneer | 480 | Hasegawa, Tsuyoshi (1531) | Won 2-0 | +181549 |
| 7pioneer | 285 | Tsuzaki, Akira (1583) | Lost 0-2 | -181531 |
| top | average opponent: 1526record: 2-3 | new rating: 1531 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 261 | Sugahara, Takuya (1558) | Won 2-0 | +191547 |
| 3standard | 72 | Yaocheng, Mark (1732) | Lost 0-2 | -151532 |
| 4standard | 473 | Asama, Daichi (1486) | Won 2-0 | +171549 |
| 5standard | 269 | Kagami, Hajime (1653) | Won 2-0 | +201569 |
| 6standard | 210 | Usui, Yuki (1548) | Lost 0-2 | -181551 |
| 7standard | 230 | Seo, Hiroki (1571) | Lost 1-2 | -181533 |
| 8standard | 344 | Soshi, Yuya (1522) | Won 2-0 | +181551 |
| top | average opponent: 1581record: 4-3 | new rating: 1551 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1545 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 48 | Nanba, Yoshinori (1438) | Won 2-1 | +161561 |
| 3sealed | 358 | Watanabe, Shogo5163 (1542) | Won 2-1 | +181579 |
| 4sealed | 108 | Terasawa, Kazuya (1845) | Lost 1-2 | -141565 |
| 5sealed | 415 | Hiroi, Yuta (1427) | Lost 0-2 | -201545 |
| 6sealed | 604 | Yoshimoto, Ryuya (1618) | Lost 0-2 | -171528 |
| top | average opponent: 1574record: 2-3 | new rating: 1528 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 376 | Nam, Sung Wook (1936) | Lost 1-2 | -111541 |
| 4standard | 507 | Hasegawa, Shun-ya (1500) | Won 2-0 | +171558 |
| 5standard | 425 | Masaki, Arata (1446) | Won 2-0 | +161574 |
| 6standard | 149 | Kitahara, Hiroaki (1769) | Lost 0-2 | -141560 |
| 7standard | 226 | Huang, Yung-Ming (1745) | Lost 1-2 | -151545 |
| top | average opponent: 1680record: 2-3 | new rating: 1545 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 198 | Iwayama, Masatomo (1598) | Lost 1-2 | -171517 |
| 2standard | 794 | Hattori, Kazuki (1566) | Lost 1-2 | -171500 |
| 3standard | 1025 | Ogino, Hiroki (1462) | Won 2-0 | +181518 |
| 4standard | 875 | Machida, Kenji (1602) | Won 2-1 | +191537 |
| 5standard | 802 | Kubota, Koki (1434) | Won 2-0 | +161553 |
| 6standard | 592 | Shiina, Daisuke (1397) | Won 2-1 | +151568 |
| 7standard | 381 | Komanski, Nicolas (1660) | Lost 0-2 | -161552 |
| top | average opponent: 1531record: 4-3 | new rating: 1552 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 414 | Kim, Minsu (1480) | Won 2-0 | +181545 |
| 2sealed | 479 | Tani, Chiharu (1681) | Lost 1-2 | -161529 |
| 3sealed | 799 | Wakita, Tomoyuki (1801) | Won 2-0 | +231552 |
| 4sealed | 543 | Miura, Daichi (1522) | Won 2-1 | +171569 |
| 5sealed | 347 | Ookura, Yasuhiro (1534) | Lost 1-2 | -181551 |
| 6sealed | 422 | Tsukagoshi, Tadaki (1631) | Lost 0-2 | -171534 |
| top | average opponent: 1608record: 3-3 | new rating: 1534 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 457 | Hosokawa, Yuya (1804) | Won 2-1 | +241522 |
| 4sealed | 116 | Rubin, Steve (2092) | Won 2-1 | +271549 |
| 5sealed | 150 | Kojima, Terumasa (1781) | Lost 1-2 | -141535 |
| 6sealed | 163 | Taniguchi, Kenta (1545) | Won 2-0 | +191554 |
| 7sealed | 43 | Tanaka, Kimitaka (1798) | Won 2-0 | +221576 |
| 8sealed | 94 | Dezani, Jeremy (1893) | Won 2-1 | +241600 |
| 9sealed | 70 | Uchida, Satoru (1615) | Lost 1-2 | -181582 |
| 10draft | 186 | Nelson, Brad (2267) | Lost 0-2 | -71575 |
| 11draft | 15 | Cabrera, Leandro (1702) | Lost 0-2 | -161559 |
| 12draft | 102 | Pacis, Jack Nicholle (1557) | Lost 0-2 | -181541 |
| 13draft | 63 | Takao, Shota (1798) | Lost 0-2 | -141527 |
| top | average opponent: 1805record: 5-6 | new rating: 1527 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 691 | Tokuma, Hikaru (1530) | Lost 0-2 | -171437 |
| 2standard | 764 | Ohata, Norio (1496) | Won 2-1 | +191456 |
| 3standard | 1047 | Tsukada, Hiroshi (1412) | Won 2-1 | +171473 |
| 4standard | 588 | Hato, Ryo (1486) | Won 2-0 | +191492 |
| 5standard | 180 | Iimura, Yuta (1518) | Draw 1-1 | 01492 |
| 6standard | 410 | Kato, Takamasa (1530) | Lost 1-2 | -171475 |
| 7standard | 624 | Hayashi, Masashi (1510) | Won 2-1 | +181493 |
| 8standard | 426 | Takahashi, Yoshimori (1540) | Won 2-0 | +191512 |
| 9standard | 296 | Koyama, Yuji (1750) | Lost 0-2 | -141498 |
| top | average opponent: 1530record: 5-3-1 | new rating: 1498 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 362 | Yoshida, Shunsuke (1508) | Won 2-0 | +181485 |
| 2standard | 561 | Takeshima, Yuuki (1442) | Won 2-1 | +181503 |
| 3standard | 496 | Nakai, Sunao (1775) | Lost 1-2 | -131490 |
| 4standard | 739 | Naraya, Takaaki (1543) | Lost 1-2 | -171473 |
| 5standard | 986 | Ozaki, Naoto (1424) | Lost 1-2 | -191454 |
| top | average opponent: 1538record: 2-3 | new rating: 1454 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 27 | Shichinohe, Shuichi (1500) | Lost 0-2 | -171467 |
| top | record: 0-1 | new rating: 1467 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1179 | Iso, Nariaki (1500) | Won 2-0 | +181501 |
| 2sealed | 1031 | Kida, Masata (1582) | Lost 1-2 | -171484 |
| top | average opponent: 1541record: 1-1 | new rating: 1484 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 675 | Satou, Masaya (1525) | Won 2-0 | +181518 |
| 2sealed | 622 | Katagiri, Kazushi (1512) | Lost 1-2 | -181500 |
| 3sealed | 1030 | Kadowaki, Hiromitsu (1499) | Won 2-1 | +181518 |
| 4sealed | 905 | Kubota, Takeshi (1539) | Lost 0-2 | -171501 |
| 5sealed | 939 | Kashiwase, Kazuya (1499) | Lost 1-2 | -181483 |
| top | average opponent: 1515record: 2-3 | new rating: 1483 | ||