Koshimoto, Haruki
Current rating: 1593
Record: 22-19-1
| Regional Championships Aichi 2023 (pioneer) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 54 | Ichikawa, Hideyuki (1923) | Won 2-1 | +251541 |
| 2pioneer | 39 | Fujioka, Naoya (1699) | Won 2-0 | +211562 |
| 3pioneer | 6 | Sato, Rei (1952) | Draw 1-1 | +71569 |
| 4pioneer | 15 | Shimizu, Naoto (1556) | Lost 0-2 | -181551 |
| 5pioneer | 37 | Igarashi, Junpei (1583) | Lost 1-2 | -181533 |
| 6pioneer | 61 | Tezuka, Yu (1361) | Won 2-1 | +151548 |
| 7pioneer | 42 | Oka, Yosuke (1747) | Won 2-0 | +221570 |
| 8pioneer | 28 | Onizuka, Hiroshi (1665) | Lost 1-2 | -161554 |
| 9pioneer | 30 | Takagi, Yuma (1626) | Won 2-1 | +191573 |
| 10pioneer | 18 | Takada, Shingo (1566) | Won 2-1 | +181591 |
| 11pioneer | 17 | Oohashi, Yoshihiro (1564) | Won 2-0 | +171608 |
| 12pioneer | 12 | Fujino, Yoshitaka (1737) | Lost 1-2 | -151593 |
| top | average opponent: 1665record: 7-4-1 | new rating: 1593 | ||
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 374 | Kondo, Yusuke (1415) | Won 2-0 | +171487 |
| 2pioneer | 48 | Sue, Ryoichi (1632) | Won 2-1 | +201507 |
| 3pioneer | 333 | Hanyuda, Takeshi (1545) | Won 2-0 | +191526 |
| 4pioneer | 22 | Kondo, Go (1560) | Lost 0-2 | -171509 |
| 5pioneer | 302 | Cheng, Tung-Yi (1684) | Lost 1-2 | -151494 |
| 6pioneer | 481 | Kashima, Akihiro (1661) | Won 2-0 | +211515 |
| 7pioneer | 237 | Mio, Ryutaro (1548) | Won 2-0 | +191534 |
| 8pioneer | 135 | Hando, Shinnosuke (1584) | Lost 0-2 | -181516 |
| top | average opponent: 1579record: 5-3 | new rating: 1516 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 265 | Yosano, Kiyoshi (1499) | Lost 0-2 | -191493 |
| 2standard | 495 | Itakura, Kenichi (1320) | Lost 0-2 | -211472 |
| 3standard | 804 | Sugiura, Mitsuki (1464) | Won 2-1 | +181490 |
| 4standard | 727 | Iwata, Noriaki (1471) | Lost 1-2 | -181472 |
| 5standard | 772 | Naruse, Kazuya (1405) | Won 2-0 | +171489 |
| 6standard | 601 | Akai, Yusuke4836 (1448) | Lost 1-2 | -191470 |
| top | average opponent: 1435record: 2-4 | new rating: 1470 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1548 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 146 | Fujita, Takahide (1500) | Lost 1-2 | -191529 |
| 2sealed | 207 | Yagi, Hiroyuki (1570) | Lost 0-2 | -171512 |
| top | average opponent: 1535record: 0-2 | new rating: 1512 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 31 | Nihashi, Yuuta (1466) | Won 2-0 | +161544 |
| 2standard | 199 | Tsuji, Shinya (1531) | Won 2-0 | +181562 |
| 3standard | 95 | Okada, Daisuke (1705) | Won 2-1 | +211583 |
| 4standard | 73 | Nogami, Masahiro (1583) | Won 2-0 | +181601 |
| 5standard | 32 | Sahasi, Yuki (1538) | Lost 0-2 | -191582 |
| 6standard | 100 | Itou, Takuma (1512) | Lost 1-2 | -201562 |
| 7standard | 159 | Suzuki, Takaaki (1750) | Lost 0-2 | -141548 |
| top | average opponent: 1584record: 4-3 | new rating: 1548 | ||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 112 | Kishishita, Jun (1500) | Won 2-0 | +181518 |
| 2sealed | 55 | Nomura, Eiji (1728) | Lost 0-2 | -141504 |
| 3sealed | 243 | Noda, Koji (1536) | Won 2-0 | +181522 |
| 4sealed | 145 | Nakazawa, Kazuhiro (1607) | Lost 1-2 | -161506 |
| 5sealed | 192 | Tsushima, Yusuke (1626) | Won 2-0 | +201526 |
| 6sealed | 95 | Sumitomo, Hiroyuki (1522) | Won 2-1 | +181544 |
| 7sealed | 74 | Taniguchi, Tomoya (1630) | Lost 0-2 | -161528 |
| top | average opponent: 1593record: 4-3 | new rating: 1528 | ||