Adachi, Naohiko
Current rating: 1554
Record: 42-42-4
| Regional Championships Aichi 2023 (pioneer) | starting rating: 1530 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 110 | Oono, Seita (1560) | Won 2-0 | +181548 |
| 2pioneer | 2 | Kimura, Shunsuke (1649) | Won 2-1 | +201568 |
| 3pioneer | 12 | Kamizono, Naoki (1832) | Won 2-1 | +231591 |
| 4pioneer | 3 | Hara, Kouki (1543) | Lost 1-2 | -191572 |
| 5pioneer | 34 | Kou, Changsu (1754) | Lost 0-2 | -151557 |
| 6pioneer | 33 | Sayama, Tatsunosuke (1544) | Won 2-0 | +181575 |
| 7pioneer | 36 | Harane, Kenta (1974) | Lost 1-2 | -111564 |
| 8pioneer | 32 | Saida, Toshihiro (1930) | Won 2-1 | +241588 |
| 9pioneer | 25 | Fujino, Yoshitaka (1706) | Lost 0-2 | -161572 |
| 10pioneer | 25 | Tanaka, Yu (1657) | Lost 0-2 | -161556 |
| 11pioneer | 27 | Hieda, Yosuke (1401) | Won 2-1 | +151571 |
| 12pioneer | 25 | Takagi, Yuma (1626) | Lost 1-2 | -171554 |
| top | average opponent: 1681record: 6-6 | new rating: 1554 | ||
| Regional Championships Aichi 2022 (pioneer) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 4 | Kamata, Kazuhiro (1833) | Lost 1-2 | -131508 |
| 2pioneer | 56 | Murakami, Kazuya3837 (1874) | Won 2-1 | +241532 |
| 3pioneer | 35 | Horie, Tooru (1856) | Won 2-1 | +241556 |
| 4pioneer | 27 | Yamane, Naoto (1752) | Lost 1-2 | -141542 |
| 5pioneer | 48 | Noine, Kazuhiro (1876) | Lost 1-2 | -121530 |
| top | average opponent: 1838record: 2-3 | new rating: 1530 | ||
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 269 | Hamada, Takayuki (1348) | Won 2-0 | +141571 |
| 4pioneer | 129 | Kashiwagi, Yuki (1440) | Lost 1-2 | -201551 |
| 5pioneer | 205 | Futamata, Yojiro (1822) | Lost 0-2 | -141537 |
| 6pioneer | 308 | Chmielewski, Nicholas (1545) | Won 2-0 | +191556 |
| 7pioneer | 333 | Matsushima, Naoto (1460) | Lost 0-2 | -201536 |
| 8pioneer | 343 | Hayashi, Takatomo (1687) | Lost 1-2 | -151521 |
| top | average opponent: 1551record: 2-4 | new rating: 1521 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 432 | Tomita, Hiroki (1396) | Won 2-0 | +151573 |
| 4sealed | 219 | Yokota, Kazuya (1479) | Lost 0-2 | -201553 |
| 5sealed | 276 | Tsuchiya, Ryuichi (1544) | Lost 1-2 | -181535 |
| 6sealed | 429 | Fujimoto, Kenta (1569) | Won 2-0 | +181553 |
| 7sealed | 251 | Ohshiro, Syusaku (1647) | Lost 1-2 | -161537 |
| 8sealed | 359 | Katou, Susumu (1621) | Won 2-0 | +201557 |
| top | average opponent: 1543record: 3-3 | new rating: 1557 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 211 | Suganuma, Takeshi (1384) | Lost 0-2 | -211512 |
| 4modern | 459 | Yu, Weilong (1750) | Won 2-1 | +231535 |
| 5modern | 471 | Sorada, Shohei (1657) | Won 2-1 | +201555 |
| 6modern | 83 | Je, Sungeun (1747) | Draw 1-1 | +31558 |
| 7modern | 202 | Jinba, Daisuke (1500) | Won 2-1 | +171575 |
| 8modern | 114 | Mishina, Ryota (1591) | Lost 0-1 | -171558 |
| top | average opponent: 1605record: 3-2-1 | new rating: 1558 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 466 | Asakura, Yoshitomo (1523) | Lost 0-2 | -181526 |
| 3standard | 535 | Buck, Ryan (1603) | Won 2-1 | +191545 |
| 4standard | 566 | Matsumoto, Yuki1423 (1651) | Won 2-0 | +201565 |
| 5standard | 238 | Kanegawa, Toshiya (1769) | Lost 0-2 | -141551 |
| 6standard | 620 | Tanaka, Kimitaka (1756) | Lost 0-2 | -141537 |
| 7standard | 554 | Partanen, Leo (1363) | Won 2-1 | +151552 |
| 8standard | 383 | Weller, Alexis (1526) | Lost 1-2 | -191533 |
| top | average opponent: 1599record: 3-4 | new rating: 1533 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1603 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 196 | Masuda, Tomohito (1481) | Won 2-0 | +161619 |
| 3standard | 312 | Tsutsui, Yuki (1770) | Lost 0-2 | -161603 |
| 4standard | 749 | Kurusu, Kazuki (1507) | Lost 0-2 | -191584 |
| 5standard | 787 | Kamo, Keisuke (1539) | Lost 0-2 | -191565 |
| 6standard | 853 | Sekikawa, Daichi (1711) | Lost 0-2 | -161549 |
| 7standard | 780 | Nakamura, Kouki 9697 (1434) | Lost 1-2 | -201529 |
| 8standard | 721 | Numa, Keiji (1367) | Won 2-0 | +151544 |
| top | average opponent: 1544record: 2-5 | new rating: 1544 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1594 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 534 | Yamashita, Kouhei (1532) | Won 2-0 | +171611 |
| 3sealed | 445 | Hisano, Mikita (1397) | Lost 0-2 | -221589 |
| 4sealed | 546 | Nam, Sung Wook (1902) | Lost 0-2 | -121577 |
| 5sealed | 721 | Kazami, Hayato (1449) | Lost 1-2 | -211556 |
| 6sealed | 820 | Aota, Hidekazu (1479) | Won 2-1 | +171573 |
| 7sealed | 557 | Tanaka, Mami (1300) | Won 2-0 | +131586 |
| 8sealed | 421 | Fukushi, Kyouhei (1526) | Won 2-1 | +171603 |
| top | average opponent: 1512record: 4-3 | new rating: 1603 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1596 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 437 | Yasui, Takahiro (1516) | Lost 0-2 | -191577 |
| 3modern | 699 | Imose, Yoneshige (1511) | Won 2-0 | +161593 |
| 4modern | 638 | Omura, Hajime (1471) | Won 2-0 | +161609 |
| 5modern | 321 | Okada, Fumia (1567) | Lost 1-2 | -191590 |
| 6modern | 452 | Ji, Zihao (1764) | Lost 0-2 | -141576 |
| 7modern | 903 | Fujimoto, Yosuke (1646) | Lost 0-2 | -171559 |
| 8modern | 803 | Hosoda, Daiki (1515) | Won 2-0 | +171576 |
| 9modern | 704 | Tatsumi, Kouji (1572) | Won 2-1 | +181594 |
| top | average opponent: 1570record: 4-4 | new rating: 1594 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 554 | Gocyo, Kyousuke (1504) | Lost 0-2 | -181479 |
| 2standard | 848 | Honda, Masaki (1482) | Won 2-0 | +181497 |
| 3standard | 737 | Arai, Yuusuke0780 (1432) | Won 2-1 | +171514 |
| 4standard | 837 | Kurokawa, Yuuki (1503) | Lost 0-2 | -181496 |
| 5standard | 874 | Otsuka, Yasumasa (1442) | Won 2-1 | +171513 |
| 6standard | 605 | Nishizawa, Taichi (1506) | Lost 0-2 | -181495 |
| 7standard | 711 | Sato, Naoki2689 (1505) | Won 2-0 | +181513 |
| 8standard | 719 | Shinohara, Gen (1521) | Won 2-1 | +181531 |
| 9standard | 548 | Nakai, Shota (1502) | Won 2-0 | +181549 |
| 10standard | 250 | Taniguchi, Hiroaki (1689) | Won 2-1 | +201569 |
| 11standard | 220 | Higono, Naoki (1689) | Won 2-1 | +201589 |
| 12standard | 200 | Liao, Yi-Nan (1845) | Won 2-0 | +231612 |
| 13standard | 133 | Takahashi, Ryo 3906 (1795) | Lost 0-2 | -151597 |
| 14standard | 115 | Soejima, Yuichi (1534) | Lost 1-2 | -191578 |
| 15standard | 221 | Nishiyama, Naoki (1578) | Won 2-1 | +181596 |
| top | average opponent: 1568record: 10-5 | new rating: 1596 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 281 | Okayama, Hironori (1366) | Draw 1-1 | -21498 |
| 2standard | 754 | Kandou, Kazuhiro (1485) | Won 2-1 | +171515 |
| 3standard | 756 | Yusuke, Asaoku (1520) | Won 2-0 | +181533 |
| 4standard | 377 | Watanabe, Yuuki (Saitama) (1530) | Won 2-0 | +181551 |
| 5standard | 193 | Miyahara, Syoutarou (1694) | Lost 1-2 | -151536 |
| 6standard | 464 | Ishii, Taiyo (1537) | Lost 0-2 | -181518 |
| 7standard | 740 | Tsuchiya, Ryuichi (1500) | Lost 1-2 | -181500 |
| 8standard | 906 | Koyama, Noriki (1468) | Draw 1-1 | -11499 |
| 9standard | 821 | Otuka, Ryutaro (1395) | Draw 1-1 | -21497 |
| top | average opponent: 1500record: 3-3-3 | new rating: 1497 | ||