Hara, Kouki
Current rating: 1628
Record: 22-16-1 (GP) / 1-7 (professional)
| Regional Championships Aichi 2023 (pioneer) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 80 | kamezaki, sho (1585) | Won 2-1 | +201509 |
| 2pioneer | 31 | Shirai, Shota (1401) | Won 2-1 | +161525 |
| 3pioneer | 7 | Tsurusawa, Kenta (1524) | Won 2-1 | +181543 |
| 4pioneer | 3 | Adachi, Naohiko (1591) | Won 2-1 | +191562 |
| 5pioneer | 3 | Masukado, Kenta (2092) | Lost 1-2 | -91553 |
| 6pioneer | 17 | Yoshigoe, Hisamichi (1813) | Lost 0-2 | -141539 |
| 7pioneer | 38 | INOUE, RYUJI (1544) | Won 2-0 | +181557 |
| 8pioneer | 14 | Usui, Haruki (1851) | Won 2-1 | +241581 |
| 9pioneer | 11 | Murayama, Kyohei (1621) | Won 2-1 | +181599 |
| 10pioneer | 5 | Yasooka, Shota (2068) | Lost 1-2 | -101589 |
| 11pioneer | 10 | Ookura, Haruka (1755) | Won 2-1 | +211610 |
| 12pioneer | 7 | Shimizu, Naoto (1608) | Won 2-0 | +181628 |
| top | average opponent: 1704record: 9-3 | new rating: 1628 | ||
| Pro Tour Lord of the Rings (modern) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 133 | Sanchez Peralta, Archibal Raziel (1875) | Lost 1-2 | -131542 |
| 2draft | 132 | Pardee, Samuel (1995) | Lost 0-2 | -101532 |
| 3draft | 133 | Larsen, Christoffer (2019) | Lost 0-2 | -101522 |
| 4modern | 132 | Lagarde, Antoine (1937) | Lost 1-2 | -111511 |
| 5modern | 129 | Asinas, Rudi Jason (1734) | Lost 0-2 | -141497 |
| 6modern | 129 | King, Robert (1586) | Won 2-0 | +201517 |
| 7modern | 120 | Miyawaki, Takeshi (1647) | Lost 1-2 | -161501 |
| 8modern | 115 | Schlom, Christoph (1836) | Lost 1-2 | -121489 |
| top | average opponent: 1829record: 1-7 | new rating: 1489 | ||
| Regional Championships Chiba 2023 (pioneer) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 44 | IWAMOTO, YUTA (1500) | Won 2-1 | +191454 |
| 2pioneer | 24 | Lee, Shi Tian (1708) | Lost 1-2 | -141440 |
| 3pioneer | 74 | Omae, Ryo (1504) | Won 2-1 | +201460 |
| 4pioneer | 47 | KUROSAWA, TAKUYA (1451) | Won 2-1 | +171477 |
| 5pioneer | 13 | Ito, Keita (1539) | Won 2-1 | +201497 |
| 6pioneer | 8 | Nakamura, Koki (1526) | Lost 1-2 | -181479 |
| 7pioneer | 22 | Matsumura, Toshikazu (1597) | Draw 0-0 | +21481 |
| 8pioneer | 25 | Ikawa, Yoshihiko (1867) | Won 2-1 | +251506 |
| 9pioneer | 17 | Kondo, Shogo (1778) | Lost 0-2 | -131493 |
| 10pioneer | 23 | Miyano, Yudai (1625) | Won 2-0 | +201513 |
| 11pioneer | 17 | Miyashita, Shota (1615) | Won 2-0 | +201533 |
| 12pioneer | 12 | Kiyofuji, Kazuya (1735) | Won 2-0 | +221555 |
| top | average opponent: 1620record: 8-3-1 | new rating: 1555 | ||
| Regional Championships Yokohama 2023 (ONE standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 45 | Suzuki, Yuta (1416) | Won 2-1 | +171498 |
| 2standard | 46 | Yamamura, Shouma (1506) | Lost 0-2 | -181480 |
| 3standard | 58 | Hirayama, Rei (1998) | Lost 0-2 | -91471 |
| 4standard | 53 | Miura, Akiyoshi (1509) | Lost 1-2 | -171454 |
| 5standard | 78 | Fukuda, Yu (1404) | Lost 1-2 | -191435 |
| top | average opponent: 1567record: 1-4 | new rating: 1435 | ||
| Regional Championships Aichi 2022 (pioneer) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 2pioneer | 65 | Yasooka, Shota (2065) | Lost 1-2 | -91498 |
| 3pioneer | 88 | Homma, Kosuke (1429) | Won 2-0 | +171515 |
| 4pioneer | 50 | Fukudome, Yuu (1695) | Lost 1-2 | -151500 |
| 5pioneer | 73 | Kawata, Kazuki (1444) | Lost 1-2 | -191481 |
| top | average opponent: 1658record: 1-3 | new rating: 1481 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 535 | Itsukushima, Shun (1561) | Won 2-1 | +191519 |
| 3modern | 258 | Kurita, Ryo (1535) | Won 2-1 | +181537 |
| 4modern | 226 | Kawakami, Yuuta (1508) | Lost 1-2 | -181519 |
| 5modern | 151 | Jiang, Yiren (1814) | Lost 1-2 | -131506 |
| 6modern | 441 | Wataya, Yosuke (1580) | Won 2-1 | +191525 |
| 7modern | 415 | Toriuchi, Daizo (1510) | Lost 0-2 | -181507 |
| top | average opponent: 1585record: 3-3 | new rating: 1507 | ||