Arai, Shuhei
Current rating: 1523
Record: 22-21-1
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2pioneer | 38 | Tamura, Yuta (1496) | Won 2-1 | +181518 |
| 3pioneer | 351 | Hayashi, Takatomo (1720) | Won 2-0 | +211539 |
| 4pioneer | 31 | Horibe, Kenji (1636) | Won 2-0 | +201559 |
| 5pioneer | 55 | Kawamura, Naoki (1506) | Draw 1-1 | -11558 |
| 6pioneer | 52 | Suganuma, Kathuhiro (1471) | Lost 1-2 | -201538 |
| 7pioneer | 148 | Iwabuchi, Daisuke (1552) | Won 2-1 | +191557 |
| 8pioneer | 87 | Kojima, Youichiro (1582) | Won 2-1 | +181575 |
| 9pioneer | 50 | Watanabe, Takuya (1481) | Lost 0-2 | -201555 |
| 10pioneer | 113 | Takahashi, Masato 3726 (1545) | Lost 0-2 | -181537 |
| 11pioneer | 142 | Akase, Kousuke (1472) | Lost 0-2 | -191518 |
| 12pioneer | 149 | Kawai, Kentaro (1389) | Won 2-0 | +161534 |
| 13pioneer | 121 | Fukuoka, Sou (1828) | Lost 0-2 | -131521 |
| 14pioneer | 125 | Sawahata, Atsushi (1605) | Won 1-0 | +191540 |
| 15pioneer | 109 | Sano, Takumi (1582) | Lost 0-2 | -171523 |
| top | average opponent: 1562record: 7-6-1 | new rating: 1523 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 44 | Fujii, Takahisa (1537) | Won 2-1 | +171558 |
| 2standard | 250 | Takano, Kodai (1817) | Won 2-1 | +231581 |
| 3standard | 310 | Morimine, Seiya (1502) | Lost 1-2 | -191562 |
| 4standard | 467 | Nakai, Yoshiharu (1570) | Lost 0-2 | -181544 |
| 5standard | 569 | Fukaya, Yuta (1490) | Won 2-1 | +171561 |
| 6standard | 451 | Ohshiba, Atsushi (1293) | Lost 0-2 | -231538 |
| 7standard | 451 | Inoue, Hiroki (1483) | Lost 0-2 | -191519 |
| 8standard | 487 | Zhu, Junfei (1443) | Lost 1-2 | -191500 |
| top | average opponent: 1517record: 3-5 | new rating: 1500 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 535 | Watanabe, Shinichiro (1618) | Won 2-1 | +201528 |
| 2sealed | 44 | Suda, Makoto (1466) | Won 2-0 | +171545 |
| 3sealed | 53 | Saitou, Takaya (1489) | Won 2-1 | +171562 |
| 4sealed | 273 | Shimadu, Naofumi (1588) | Lost 0-2 | -181544 |
| 5sealed | 160 | Kurokawa, Yuuki (1462) | Lost 1-2 | -191525 |
| 6sealed | 467 | Hayashi, Hisaaki (1476) | Won 2-1 | +171542 |
| 7sealed | 390 | Kakimoto, Yuki (1422) | Lost 0-2 | -201522 |
| 8sealed | 462 | Takimoto, Yusuke (1570) | Won 2-1 | +191541 |
| top | average opponent: 1511record: 5-3 | new rating: 1541 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 108 | Takahashi, Masato 3726 (1477) | Lost 1-2 | -201523 |
| 4modern | 768 | Tinen, Kousuke (1699) | Lost 0-2 | -141509 |
| 5modern | 659 | Shishibori, Kohei (1472) | Won 2-1 | +171526 |
| 6modern | 550 | Mitani, Kazuki (1524) | Lost 0-2 | -181508 |
| 7modern | 597 | Oku, Daisaku (1525) | Lost 0-2 | -181490 |
| 8modern | 618 | Hattori, Taiki (1477) | Won 2-0 | +181508 |
| top | average opponent: 1529record: 2-4 | new rating: 1508 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 191 | Kurihara, Akihiro (1461) | Won 2-0 | +171517 |
| 2standard | 497 | Otsuka, Tomohito (1692) | Won 2-0 | +211538 |
| 3standard | 302 | Hasebe, Sho (1513) | Lost 0-2 | -181520 |
| 4standard | 549 | Okamura, Takumi (1486) | Lost 0-2 | -191501 |
| 5standard | 659 | Shimazaki, Ryota (1763) | Won 2-0 | +231524 |
| 6standard | 443 | Hiroyama, Tomoki (1539) | Won 2-1 | +181542 |
| 7standard | 213 | Oginuma, Kiichi (1561) | Lost 0-2 | -171525 |
| 8standard | 340 | Morishima, Noriaki (1519) | Won 2-1 | +181543 |
| top | average opponent: 1567record: 5-3 | new rating: 1543 | ||