Japan Open 2025 Challengers Participants
The Japan Open 2025 will take place from September 19 to September 23 in Tokyo, Japan. This tournament is separated into 2 categories – Masters and Challengers. The Challengers section is a 9-round Swiss system tournament with time control of 90 min + 30 sec/move. For more events from Japan, check out The Asian Chess Calendar, which is part of The Chess Calendar.
The top-seeded players are Nguyen Tuan Anh (1988), Gishi Takeshi (1971), Tran Duc Hung Long (1969), Planche Pierre-Francois (1958), Xue Shixuan (1920), Otake Sakae (1916), Baisynov Islambek (1914), Kuroda Yunosuke (1903), Nodon Jeremi (1897), Tanaka Satoshi (1885), Kitagami Show (1879), Saito Hiromasa (1877), Shishido Yusuke (1873), Abe Taro (1860), Tanaka Ryosuke (1859), Kim Taewoo A (1857), Erkoc Vedat (1854), Chen Yueyi (1852), Young Steven D (1849), Summerville Nathan (1847). Scroll down for the full participants list.
Categories: Masters
More Asian events: 23rd RCC International Fide Rated Classical Cup / 24th RCC International Fide Rated Rapid Cup / 25th RCC International Fide Rated Blitz Cup / Tsaghkadzor Open 2025 / Dasman Classical Chess Championship 2025 / Sukanun Chess 2025 / 20th Dato Arthur Tan Malaysian Open Chess Championship
Japan Open 2025 Challengers Participants
| No. | Name | FED | RtgI | RtgN | |
| 1 | Nguyen, Tuan Anh | VIE | 1988 | 1897 | |
| 2 | Gishi, Takeshi | JPN | 1971 | 1926 | |
| 3 | Tran, Duc Hung Long | VIE | 1969 | 1840 | |
| 4 | Planche, Pierre-Francois | FRA | 1958 | 1958 | |
| 5 | Xue, Shixuan | CHN | 1920 | 0 | |
| 6 | Otake, Sakae | JPN | 1916 | 1681 | |
| 7 | Baisynov, Islambek | KGZ | 1914 | 0 | |
| 8 | Kuroda, Yunosuke | JPN | 1903 | 1863 | |
| 9 | Nodon, Jeremi | JPN | 1897 | 1906 | |
| 10 | Tanaka, Satoshi | JPN | 1885 | 1812 | |
| 11 | Kitagami, Show | JPN | 1879 | 1836 | |
| 12 | Saito, Hiromasa | JPN | 1877 | 1871 | |
| 13 | Shishido, Yusuke | JPN | 1873 | 1724 | |
| 14 | Abe, Taro | JPN | 1860 | 1783 | |
| 15 | Tanaka, Ryosuke | JPN | 1859 | 1815 | |
| 16 | Kim, Taewoo A | KOR | 1857 | 0 | |
| 17 | Erkoc, Vedat | TUR | 1854 | 1869 | |
| 18 | Chen, Yueyi | GER | 1852 | 0 | |
| 19 | Young, Steven D | USA | 1849 | 0 | |
| 20 | Summerville, Nathan | JPN | 1847 | 1835 | |
| 21 | Patil, Rushad | JPN | 1846 | 1843 | |
| 22 | Thapa, Lekha Bahadur | NEP | 1845 | 1889 | |
| 23 | Araki, Dai | JPN | 1828 | 1747 | |
| 24 | Sugimoto, Koichi | JPN | 1826 | 1852 | |
| 25 | Kanda, Daigo | JPN | 1820 | 1792 | |
| 26 | Shakuya, Keita | JPN | 1819 | 1708 | |
| 27 | Wu, Chen- Hao | TPE | 1818 | 0 | |
| 28 | Song, Jihu | KOR | 1815 | 0 | |
| 29 | Clark, Domenic | JPN | 1812 | 1768 | |
| 30 | Kato, Ami | JPN | 1810 | 1725 | |
| 31 | Ogasa, Seiichi | JPN | 1798 | 1668 | |
| 32 | Zhu, Alicia | USA | 1792 | 0 | |
| 33 | Nakanishi, Yuuma | JPN | 1790 | 1848 | |
| 34 | Jang, Seojun | KOR | 1786 | 0 | |
| 35 | Ursely, Arthur | FRA | 1781 | 0 | |
| 36 | Onuma, Kota | JPN | 1779 | 1764 | |
| 37 | Karasawa, Yuta | JPN | 1778 | 1648 | |
| 38 | WCM | Kojima, Natsumi | JPN | 1769 | 1753 |
| 39 | Zhou, Tony | HKG | 1769 | 0 | |
| 40 | Mamatkulov, Azizjon | JPN | 1766 | 1625 | |
| 41 | Yokota, Yoshiaki | JPN | 1765 | 1801 | |
| 42 | Nguyen, Cong Khen | VIE | 1762 | 1731 | |
| 43 | Bhatia, Praveen | JPN | 1761 | 1698 | |
| 44 | WCM | Mitsuyama, Rikka | JPN | 1758 | 1743 |
| 45 | WCM | Hasegawa, Emi | JPN | 1745 | 1678 |
| 46 | Lopez de Anda, Edgar | USA | 1743 | 0 | |
| 47 | Koyama, Nobuyuki | JPN | 1739 | 1748 | |
| 48 | Kawamura, Takuto | JPN | 1735 | 1747 | |
| 49 | Curtis, Toby | JPN | 1731 | 1565 | |
| 50 | Mukai, Hiroyuki | JPN | 1729 | 1633 | |
| 51 | Burgess, Joseph | JPN | 1729 | 1553 | |
| 52 | Kakishima, Hinata | JPN | 1717 | 1630 | |
| 53 | Lee, Donghyun C | KOR | 1714 | 0 | |
| 54 | AGM | Zhang, Yicheng | JPN | 1708 | 1613 |
| 55 | Chen, Yuefan | GER | 1704 | 0 | |
| 56 | Fukuda, Toyoaki | JPN | 1703 | 1716 | |
| 57 | Sun, Chang Jyu | TPE | 1699 | 1675 | |
| 58 | Takayama, Tadayoshi | JPN | 1690 | 1607 | |
| 59 | Mooi, Kok Onn Osric | SGP | 1688 | 0 | |
| 60 | Noda, Ryo | JPN | 1682 | 1671 | |
| 61 | WCM | Misawa, Yuki | JPN | 1682 | 1614 |
| 62 | Pichon, Mathieu | FRA | 1678 | 0 | |
| 63 | Takase, Hayato | JPN | 1676 | 1477 | |
| 64 | Lee, Onbin | KOR | 1676 | 0 | |
| 65 | Kim, Dohyun D | KOR | 1672 | 0 | |
| 66 | Huang, Aaron Yu-Hsi | TPE | 1668 | 0 | |
| 67 | Ishii, Hibiki | JPN | 1667 | 1590 | |
| 68 | Lau, Tsz Yiu Christ | HKG | 1667 | 0 | |
| 69 | Nukui, Michitaka | JPN | 1663 | 1398 | |
| 70 | Abe, Masahiro | JPN | 1649 | 1481 | |
| 71 | Kaur, Ravneet | IND | 1643 | 1604 | |
| 72 | Matsumoto, Shinji | JPN | 1636 | 1393 | |
| 73 | Cha, Tony | JPN | 1631 | 1636 | |
| 74 | Toyota, Yusuke | JPN | 1630 | 1537 | |
| 75 | ACM | Ramkumar, Aravindh | JPN | 1623 | 1437 |
| 76 | Jiang, Luning | CHN | 1621 | 0 | |
| 77 | Lam, Lok Sum | HKG | 1621 | 0 | |
| 78 | Chen, Zixi | CHN | 1620 | 0 | |
| 79 | WCM | Wong, Linda Jane | TPE | 1619 | 1716 |
| 80 | Wu, Sinian | CHN | 1619 | 0 | |
| 81 | Kumasaka, Akiho | JPN | 1616 | 1510 | |
| 82 | Hung, I-Hsuan | TPE | 1616 | 0 | |
| 83 | WCM | You, Garam | KOR | 1608 | 0 |
| 84 | Chung, Frederick H. | TPE | 1607 | 0 | |
| 85 | Niori, Toma | JPN | 1606 | 1630 | |
| 86 | Kothakota, Satya Sandesh | JPN | 1603 | 1431 | |
| 87 | Karimov, Ismail | KGZ | 1600 | 0 | |
| 88 | Aritro, Dhar | BAN | 1599 | 0 | |
| 89 | Aditya, Mohajan | BAN | 1593 | 0 | |
| 90 | Chongstitwattana, Cholapat | THA | 1592 | 0 | |
| 91 | Liang, Zhuobin | CHN | 1579 | 0 | |
| 92 | Zawad, Hussain | BAN | 1576 | 0 | |
| 93 | Furuse, Mizuki | JPN | 1575 | 1584 | |
| 94 | Yen, Yu-Ting | TPE | 1570 | 0 | |
| 95 | Kanehara, Hiromichi | JPN | 1564 | 1385 | |
| 96 | Hehir, Stephen | JPN | 1557 | 1457 | |
| 97 | Deno, Masahiko | JPN | 1554 | 1293 | |
| 98 | N, Murugappan | IND | 1550 | 1649 | |
| 99 | Xu, Xiaodi | CHN | 1547 | 0 | |
| 100 | Wang, Minrui | JPN | 1545 | 1457 | |
| 101 | Lim, Howe Luong | MAS | 1528 | 0 | |
| 102 | Ishitsu, Mike | JPN | 1525 | 0 | |
| 103 | Itokazu, Antonio | JPN | 1510 | 1474 | |
| 104 | Inoue, Satomi | JPN | 1507 | 1395 | |
| 105 | Wang, Yifan(BJ) | CHN | 1505 | 0 | |
| 106 | Du, Jonathan | USA | 1489 | 1461 | |
| 107 | Li, Chengfei | CHN | 1486 | 0 | |
| 108 | Jang, Seungwoo | KOR | 1455 | 0 | |
| 109 | Khamkuer, Thanthorn | THA | 1453 | 0 | |
| 110 | Anobadyo, Shristi Ghosh | BAN | 1448 | 0 | |
| 111 | Akiyama, Kairi | JPN | 1432 | 1443 | |
| 112 | Yoshida, Sou | JPN | 0 | 1690 | |
| 113 | Kihara, Taira | JPN | 0 | 1678 | |
| 114 | Sato, Keito | JPN | 0 | 1581 | |
| 115 | AFM | Handika, Rangga | JPN | 0 | 1531 |
| 116 | Takahashi, Taiga | JPN | 0 | 1495 | |
| 117 | Jie, Jingfei | JPN | 0 | 1473 | |
| 118 | Chong, Wing Hei | JPN | 0 | 1416 | |
| 119 | Tsai, Nicholas | USA | 0 | 1355 | |
| 120 | Okita, Ken | JPN | 0 | 1342 | |
| 121 | Nakamura, Junko | JPN | 0 | 1299 | |
| 122 | Kitahara, Fumihiro | JPN | 0 | 1251 | |
| 123 | Solanki, Shambhavi | JPN | 0 | 1246 | |
| 124 | Takano, Shun | JPN | 0 | 1239 | |
| 125 | Hernandez, Jino | JPN | 0 | 1230 | |
| 126 | Biju Pillai, Nanma | JPN | 0 | 1167 | |
| 127 | Watanabe, Timofei | JPN | 0 | 1134 | |
| 128 | Ramkumar, Aaradh | 0 | 1011 | ||
| 129 | Ono, Yukiko | JPN | 0 | 1000 | |
| 130 | Elena, Mishra | IND | 0 | 0 | |
| 131 | Ismailov, Bolotbek | KGZ | 0 | 0 | |
| 132 | Li, Yu Tung | HKG | 0 | 0 | |
| 133 | Liang, Haoyang | CHN | 0 | 0 | |
| 134 | Lin, Yu-Fei | TPE | 0 | 0 | |
| 135 | Lo, Gareth | HKG | 0 | 0 | |
| 136 | Noda, Kyohei | JPN | 0 | 0 | |
| 137 | Tavakalov, Doolatbek | KGZ | 0 | 0 | |
| 138 | Visvanathan, Kieran Chang | TPE | 0 | 0 | |
| 139 | Wada, Ryotaro | JPN | 0 | 0 | |
| 140 | Wang, Alison | TPE | 0 | 0 | |
| 141 | Wang, Mason | TPE | 0 | 0 | |
| 142 | Xu, Hongyuan | JPN | 0 | 0 | |
| 143 | Zhao, Ming | CHN | 0 | 0 |