Igarashi, Junpei
Current rating: 1587
Record: 44-38-1
| Regional Championships Aichi 2023 (pioneer) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 18 | Takeo, Shin (1501) | Won 2-1 | +171579 |
| 2pioneer | 9 | Imai, Kenta (1681) | Won 2-1 | +201599 |
| 3pioneer | 17 | Yokokawa, Yuta (1433) | Lost 0-2 | -211578 |
| 4pioneer | 25 | Ma, Noah (1856) | Draw 1-1 | +51583 |
| 5pioneer | 37 | Koshimoto, Haruki (1551) | Won 2-1 | +171600 |
| 6pioneer | 24 | Ishiguro, Satoshi (1715) | Won 2-1 | +201620 |
| 7pioneer | 14 | Takagi, Yuma (1642) | ID | 01620 |
| 8pioneer | 21 | Matsuda, Hideyuki (1506) | Won 2-1 | +161636 |
| 9pioneer | 17 | Park, Geon-Wook (1720) | Lost 0-2 | -161620 |
| 10pioneer | 23 | Morishita, Yukitaka (1578) | Lost 1-2 | -191601 |
| 11pioneer | 25 | Okamura, Marei (1821) | Lost 0-2 | -141587 |
| top | average opponent: 1637record: 5-4-2 | new rating: 1587 | ||
| Regional Championships Chiba 2023 (pioneer) | starting rating: 1594 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 7 | Saito, Shinya (1845) | Lost 1-2 | -141580 |
| 2pioneer | 109 | Hori, Masataka (1753) | Lost 0-2 | -141566 |
| 3pioneer | 108 | Leem, Chaiwon (1463) | Won 2-1 | +161582 |
| 4pioneer | 82 | IWAMOTO, YUTA (1480) | Lost 0-2 | -201562 |
| top | average opponent: 1635record: 1-3 | new rating: 1562 | ||
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1622 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 400 | Ooi, Yuichi (1391) | Won 2-1 | +141636 |
| 2pioneer | 90 | Katsuraguchi, Koichi (1518) | Lost 0-2 | -201616 |
| 3pioneer | 484 | Yamamoto, Shintaro (1407) | Lost 1-2 | -221594 |
| top | average opponent: 1439record: 1-2 | new rating: 1594 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1598 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 121 | Takanuki, Akito (1500) | Lost 1-2 | -201578 |
| 2standard | 480 | Ono, Yasuaki (1483) | Won 2-1 | +171595 |
| 3standard | 476 | Hazu, Masaki (1491) | Won 2-0 | +161611 |
| 4standard | 494 | Masui, Norioki (1573) | Won 2-1 | +171628 |
| 5standard | 282 | Ikeda, Tomohiko (1425) | Won 2-1 | +141642 |
| 6standard | 191 | Omi, Tatsuya (1600) | Lost 1-2 | -181624 |
| 7standard | 329 | Fukudome, Yuu (1686) | Won 2-0 | +191643 |
| 8standard | 212 | Miyamoto, Keisuke (1493) | Lost 1-2 | -211622 |
| top | average opponent: 1531record: 5-3 | new rating: 1622 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1622 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 293 | Nakamura, Kouki 9697 (1454) | Lost 0-2 | -221600 |
| 2standard | 653 | Nakano, Atsushi (1607) | Won 2-1 | +191619 |
| 3standard | 549 | Aoki, Yuki (1571) | Lost 1-2 | -191600 |
| 4standard | 700 | Sakamoto, Satoshi (1635) | Won 2-1 | +181618 |
| 5standard | 697 | Kishi, Daisuke (1492) | Lost 0-2 | -201598 |
| top | average opponent: 1552record: 2-3 | new rating: 1598 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1613 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 771 | Shin, Takahiro (1504) | Won 2-0 | +161629 |
| 2modern | 149 | Nitta, Yusuke (1519) | Lost 1-2 | -201609 |
| 3modern | 767 | Nishiyama, Takahiro (1517) | Lost 1-2 | -201589 |
| 4modern | 989 | Mori, Akihiro (1486) | Won 2-0 | +161605 |
| 5modern | 853 | Yamada, Hiroki (1611) | Won 2-0 | +181623 |
| 6modern | 762 | Ishiwata, Ryohei (1468) | Won 2-1 | +161639 |
| 7modern | 390 | Miyagawa, Yuuta (1595) | Won 2-0 | +171656 |
| 8modern | 190 | Imura, Satoshi (1610) | Lost 1-2 | -191637 |
| 9modern | 387 | Kyohei, Watanabe (1505) | Won 2-0 | +161653 |
| 10modern | 275 | Kawahara, Ryouta (1782) | Lost 0-2 | -161637 |
| 11modern | 350 | Tamura, Ryo (1780) | Lost 0-2 | -151622 |
| top | average opponent: 1580record: 6-5 | new rating: 1622 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 209 | Kurata, Shintaro (1559) | Won 2-1 | +191530 |
| 4standard | 157 | Hiyama, Syunsuke (1507) | Won 2-0 | +171547 |
| 5standard | 101 | Moriya, Toshihiko (1639) | Lost 0-2 | -161531 |
| 6standard | 339 | Sakai, Ryou (1585) | Won 2-0 | +191550 |
| 7standard | 188 | Kitaoka, Takaaki (1728) | Lost 1-2 | -151535 |
| 8standard | 202 | Matsuyama, Ryousuke (1646) | Won 2-0 | +201555 |
| 9standard | 128 | Katou, Masaya (1439) | Lost 0-2 | -201535 |
| 10standard | 336 | Dai, Xiangjun (1553) | Won 2-0 | +181553 |
| 11standard | 259 | Nishimoto, Sosuke (1552) | Won 2-1 | +181571 |
| 12standard | 115 | Nagai, Kousuke (1666) | Lost 0-2 | -161555 |
| 13standard | 181 | Inazawa, Ryo (1611) | Won 2-1 | +191574 |
| 14standard | 148 | Maki, Shuuichirou (1594) | Won 2-0 | +191593 |
| 15standard | 73 | Honda, Atsuo (1718) | Won 2-1 | +201613 |
| top | average opponent: 1600record: 9-4 | new rating: 1613 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 426 | Watanabe, Nobuyuki (1459) | Won 2-0 | +171549 |
| 2sealed | 506 | Serizawa, Hiroki (1553) | Won 2-0 | +181567 |
| 3sealed | 392 | Motoshi, Takahashi (1501) | Lost 0-2 | -201547 |
| 4sealed | 330 | Kobayashi, Tatsurou (1580) | Lost 1-2 | -171530 |
| 5sealed | 876 | Narita, Chisato (1464) | Won 2-0 | +171547 |
| 6sealed | 580 | Deguchi, Keizou (1504) | Lost 1-2 | -191528 |
| 7sealed | 593 | Matsushita, Takahiro (1579) | Lost 0-2 | -171511 |
| top | average opponent: 1520record: 3-4 | new rating: 1511 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 250 | Heaton, Robert (1558) | Lost 0-2 | -171494 |
| 2standard | 656 | Yokoyama, Kenichi (1518) | Won 2-0 | +181512 |
| 3standard | 937 | Kurihara, Shota (1502) | Won 2-0 | +181530 |
| 4standard | 599 | Nakamura, Taro (1462) | Won 2-0 | +171547 |
| 5standard | 378 | Miyamoto, Kento (1534) | Won 2-1 | +181565 |
| 6standard | 178 | Shibuya, Ryosuke (1514) | Won 2-0 | +171582 |
| 7standard | 86 | Horiike, Shinya (1574) | Lost 0-2 | -181564 |
| 8standard | 267 | Tsumura, Kenji (1846) | Lost 1-2 | -131551 |
| 9standard | 341 | Hamada, Keisuke (1504) | Lost 0-2 | -191532 |
| top | average opponent: 1557record: 5-4 | new rating: 1532 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1141 | Nakakura, Satoshi (1454) | Lost 0-2 | -191497 |
| 2sealed | 1402 | Hino, Tomoaki (1421) | Won 2-1 | +161513 |
| 3sealed | 1085 | Yanagisawa, Makoto (1420) | Won 2-0 | +161529 |
| 4sealed | 1126 | Maezono, Kenta (1507) | Won 2-1 | +181547 |
| 5sealed | 878 | Sasaki, Yasuhiro (1561) | Lost 0-2 | -181529 |
| 6sealed | 1071 | Ando, Masanori9484 (1519) | Lost 1-2 | -181511 |
| top | average opponent: 1480record: 3-3 | new rating: 1511 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 731 | Ishiguro, Kenta (1509) | Won 2-1 | +181518 |
| 2modern | 836 | Kondou, Masayuki (1483) | Lost 0-2 | -181500 |
| 3modern | 996 | Mizuno, Yuta (1502) | Won 2-1 | +181518 |
| 4modern | 1034 | Kato, Takanori (1426) | Won 2-1 | +161534 |
| 5modern | 882 | Tanaka, Tomoyuki (1499) | Lost 0-2 | -191515 |
| 6modern | 954 | Nakata, Tatsuya (1580) | Won 2-1 | +191534 |
| 7modern | 847 | Shimizu, Haruki (1493) | Lost 1-2 | -181516 |
| top | average opponent: 1499record: 4-3 | new rating: 1516 | ||