Arai, Makoto
Current rating: 1532
Record: 52-52-4
Grand Prix Chiba 2015Grand Prix Kobe 2015Grand Prix Nagoya 2016Grand Prix Tokyo 2016Grand Prix Chiba 2016Grand Prix Shizuoka 2017Grand Prix Kobe 2017Grand Prix Chiba 2018Grand Prix Hong Kong 2018Grand Prix Shizuoka 2018 (legacy)Grand Prix Shizuoka 2018 (standard)Grand Prix Kyoto 2019Grand Prix Yokohama 2019Grand Prix Nagoya 2020
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 256 | Uchida, Tomoaki (1414) | Lost 0-2 | -191487 |
| 4pioneer | 262 | Mizuno, Takeshi (1426) | Lost 1-2 | -201467 |
| 5pioneer | 623 | Nakamichi, Daisuke (1945) | Won 2-1 | +271494 |
| 6pioneer | 372 | Takemoto, Hikaru (1639) | Won 2-1 | +201514 |
| 7pioneer | 248 | Terasawa, Yu (1688) | Won 2-1 | +211535 |
| 8pioneer | 236 | Kosho, Tomoya (1576) | Won 2-0 | +191554 |
| 9pioneer | 163 | Takahashi, Taro (1653) | Lost 1-2 | -161538 |
| 10pioneer | 127 | Watanabe, Masao (1369) | Won 2-1 | +151553 |
| 11pioneer | 118 | Ochi, Takushi (1545) | Lost 0-2 | -181535 |
| 12pioneer | 112 | Endo, Akiteru (1573) | Lost 1-2 | -181517 |
| 13pioneer | 131 | Tanaka, Mami (1437) | Won 2-0 | +171534 |
| 14pioneer | 113 | Okumura, Takaaki (1548) | Lost 1-2 | -181516 |
| 15pioneer | 119 | He, Kerr (1404) | Won 2-0 | +161532 |
| top | average opponent: 1555record: 7-6 | new rating: 1532 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 101 | Miyazaki, Ryunosuke (1484) | Lost 0-2 | -191549 |
| 3modern | 643 | Shinya, Takeshi (1343) | Lost 1-2 | -221527 |
| 4modern | 980 | Iida, Ryunosuke (1385) | Lost 0-2 | -211506 |
| top | average opponent: 1404record: 0-3 | new rating: 1506 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 469 | Nishiyama, Takashi (1489) | Won 2-1 | +171561 |
| 3standard | 61 | Masuda, Tomohito (1508) | Won 2-1 | +171578 |
| 4standard | 163 | Tanaka, Yu 6006 (1617) | Lost 0-2 | -171561 |
| 5standard | 401 | Arakawa, Yusuke (1470) | Won 2-1 | +161577 |
| 6standard | 87 | Matsuyama, Ryousuke (1756) | Lost 0-2 | -141563 |
| 7standard | 204 | Yajima, Hiromichi (1584) | Won 2-0 | +181581 |
| 8standard | 267 | Law, Albertus Hui Chin (1862) | Lost 0-2 | -131568 |
| top | average opponent: 1612record: 4-3 | new rating: 1568 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1566 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 224 | Kosaka, Kazune (1681) | Lost 0-2 | -161550 |
| 3standard | 791 | Yamauchi, Yousuke (1472) | Lost 1-2 | -191531 |
| 4standard | 813 | Nishimura, Shinji (1479) | Lost 1-2 | -191512 |
| 5standard | 991 | Itou, Tomoya (1520) | Lost 1-2 | -181494 |
| 6standard | 893 | Miyoshi, Tomohito (1499) | Won 2-0 | +181512 |
| 7standard | 795 | Tan, Xiangsheng (1386) | Won 2-1 | +161528 |
| 8standard | 685 | Takeyama, Maya (1438) | Won 2-1 | +161544 |
| top | average opponent: 1496record: 3-4 | new rating: 1544 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 88 | Matsumoto, Kazuma 0580 (1586) | Won 2-0 | +191587 |
| 3legacy | 52 | Hirayama, Masamichi (1567) | Lost 0-2 | -191568 |
| 4legacy | 188 | Ohba, Hiroshi (1528) | Lost 0-2 | -181550 |
| 5legacy | 428 | Hasegawa, Tatuya (1563) | Lost 1-2 | -181532 |
| 6legacy | 423 | Hamada, Yuusai (1492) | Won 2-1 | +171549 |
| 7legacy | 341 | Yanagawa, Tomoyuki (1506) | Won 2-1 | +171566 |
| top | average opponent: 1540record: 3-3 | new rating: 1566 | ||
| Grand Prix Hong Kong 2018 (modern) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 140 | Yat Hin, Lau (1516) | Won 2-0 | +171604 |
| 3modern | 20 | Kuo, Tzu-Ching (1963) | Lost 1-2 | -121592 |
| 4modern | 156 | Zhou, Zhiqi (1530) | Won 2-1 | +171609 |
| 5modern | 98 | Kelley, Chris (1573) | Lost 1-2 | -191590 |
| 6modern | 138 | Tay, Daryl (1529) | Lost 1-2 | -191571 |
| 7modern | 210 | Tong, Jesse (1499) | Lost 0-2 | -191552 |
| 8modern | 271 | Cui, Chuanwei (1484) | Won 2-0 | +161568 |
| top | average opponent: 1585record: 3-4 | new rating: 1568 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1605 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 97 | Kamizono, Naoki (1742) | Won 2-0 | +201625 |
| 3sealed | 66 | Omiya, Takahiro (1647) | Lost 0-2 | -171608 |
| 4sealed | 499 | Yohara, Tosho (1566) | Lost 1-2 | -191589 |
| 5sealed | 735 | Kurihara, Mitsuaki (1570) | Won 2-0 | +171606 |
| 6sealed | 641 | Hirokawa, Tatsuya 1725 (1517) | Lost 0-2 | -191587 |
| top | average opponent: 1608record: 2-3 | new rating: 1587 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1456 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 344 | Yoshioka, Kousuke (1436) | Won 2-1 | +171473 |
| 3modern | 315 | Furukawa, Takuto (1491) | Won 2-0 | +191492 |
| 4modern | 248 | Higono, Naoki (1690) | Lost 0-2 | -151477 |
| 5modern | 393 | Abe, Kazuhiro (1575) | Won 2-0 | +201497 |
| 6modern | 354 | Ueda, Tadahiko (1519) | Won 2-1 | +181515 |
| 7modern | 57 | Kamei, Kazuhiko (1443) | Won 2-1 | +171532 |
| 8modern | 94 | Muto, Shogo (1538) | Won 2-1 | +181550 |
| 9modern | 57 | Ito, Shinichi (1712) | Won 2-1 | +211571 |
| 10modern | 18 | Ito, Jin (1595) | Draw 1-1 | +11572 |
| 11modern | 28 | Okamura, Ryoma (1798) | Lost 0-2 | -141558 |
| 12modern | 70 | Allard, Jason (1733) | Won 2-0 | +211579 |
| 13modern | 44 | Yamano, Nobuteru (1586) | Won 2-0 | +181597 |
| 14modern | 28 | Yanase, Kaname (1766) | Won 2-1 | +211618 |
| 15modern | 16 | Shiozaki, Toshinori (1883) | Lost 1-2 | -131605 |
| top | average opponent: 1626record: 10-3-1 | new rating: 1605 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 379 | Kang, Yameng (1508) | Won 2-1 | +181499 |
| 3standard | 56 | Lu, Bo (1697) | Lost 1-2 | -141485 |
| 4standard | 602 | Mizutani, Yuki (1465) | Lost 0-2 | -191466 |
| 5standard | 990 | Handa, Fumiya (1500) | Lost 1-2 | -171449 |
| 6standard | 1032 | Suzuki, Kyou (1659) | Won 2-1 | +221471 |
| 7standard | 708 | Ito, Shinichi (1598) | Lost 0-2 | -161455 |
| 8standard | 823 | Mita, Hiroki (1486) | Won 2-0 | +191474 |
| 9standard | 687 | Horibe, Satoshi (1472) | Lost 1-2 | -181456 |
| top | average opponent: 1548record: 3-5 | new rating: 1456 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 222 | Ochiai, Yusuke (1652) | Lost 1-2 | -151473 |
| 4legacy | 647 | Suganuma, Takayuki (1608) | Lost 1-2 | -161457 |
| 5legacy | 637 | Goshima, Akito (1726) | Lost 1-2 | -131444 |
| 6legacy | 871 | Sugita, Tsubasa (1395) | Won 2-1 | +171461 |
| 7legacy | 831 | Keisuke, Nakadera (1498) | Lost 0-2 | -171444 |
| 8legacy | 794 | Sawada, Tsubasa (1478) | Won 2-1 | +181462 |
| 9legacy | 668 | Kobayashi, Souma (1483) | Won 2-0 | +191481 |
| top | average opponent: 1548record: 3-4 | new rating: 1481 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 588 | Emori, Shinichi (1594) | Lost 1-2 | -161512 |
| 3standard | 1216 | Shindo, Yuto (1501) | Lost 1-2 | -191493 |
| 4standard | 1198 | Kamachi, Naoki (1481) | Lost 1-2 | -181475 |
| 5standard | 1460 | Takahashi, Masayoshi (1417) | Won 2-1 | +171492 |
| 6standard | 1062 | Tasugi, Keigo (1435) | Lost 0-2 | -191473 |
| 7standard | 1198 | Ikeda, Kengo (1460) | Won 2-0 | +181491 |
| 8standard | 973 | Yougai, Aiki (1481) | Lost 0-2 | -181473 |
| 9standard | 872 | Tanaka, Makoto (1313) | Won 2-1 | +151488 |
| top | average opponent: 1460record: 3-5 | new rating: 1488 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 525 | Narita, Yuusuke (1511) | Won 2-1 | +171548 |
| 2sealed | 314 | Kawamura, Akihiro (1590) | Draw 1-1 | +11549 |
| 3sealed | 610 | Higashida, Tetsuaki (1511) | Lost 1-2 | -191530 |
| 4sealed | 836 | Maruno, Takaaki (1544) | Lost 1-2 | -171513 |
| 5sealed | 999 | Saegusa, Nobuyuki (1619) | Lost 1-2 | -161497 |
| 6sealed | 1034 | Sasaki, Tsuyoshi (1452) | Won 2-0 | +171514 |
| 7sealed | 874 | Ihara, Akihiro (1363) | Won 2-0 | +151529 |
| 8sealed | 698 | Suzuki, Kazuto (1498) | Draw 1-1 | -11528 |
| top | average opponent: 1511record: 3-3-2 | new rating: 1528 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 516 | Yasuda, Takaaki (1500) | Lost 0-2 | -181496 |
| 2standard | 869 | Morokuma, Daisuke (1482) | Lost 1-2 | -181478 |
| 3standard | 1197 | Matsuda, Kenta (1435) | Won 2-0 | +171495 |
| 4standard | 909 | Kobayashi, Akihiro (1458) | Won 2-0 | +171512 |
| 5standard | 811 | Tanabe, Atsushi (1473) | Lost 0-2 | -181494 |
| 6standard | 797 | Oonishi, Takahisa (1542) | Lost 1-2 | -181476 |
| 7standard | 743 | Watabe, Tetsuro (1449) | Won 2-0 | +181494 |
| 8standard | 647 | Nakano, Yuta (1481) | Won 2-1 | +181512 |
| 9standard | 416 | Yokoyama, Takaya (1563) | Won 2-1 | +191531 |
| top | average opponent: 1487record: 5-4 | new rating: 1531 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2165 | Ohno, Naoki (1515) | Won 2-1 | +181518 |
| 2sealed | 2061 | Ogura, Tomomasa (1480) | Lost 1-2 | -181500 |
| 3sealed | 2349 | Takaya, Akio (1479) | Draw 1-1 | -11499 |
| 4sealed | 2314 | Hata, Hideaki (1455) | Won 2-0 | +171516 |
| 5sealed | 2206 | Kubota, Taiga (1383) | Won 2-1 | +161532 |
| 6sealed | 2131 | Lee, Hung (1547) | Lost 1-2 | -181514 |
| top | average opponent: 1476record: 3-2-1 | new rating: 1514 | ||