Judan
Established in 1962 by the Sankei Shimbun newspaper, the Judan ("Tenth Dan") is the fourth-oldest of Japan's seven major titles, with a winner's prize of approximately 14 million yen. Its name evokes the pinnacle of Go rank -- historically, 9-dan was the highest official grade, so "Tenth Dan" symbolically places the champion beyond even that ceiling. The Judan stands out for its unusual double-elimination preliminary format: a player who loses in the winners' bracket drops to a losers' bracket rather than being eliminated, and the two bracket winners face off to determine who challenges the defending champion in a best-of-five title match.
Country Japan
Type Title Match
Format Knockout Title
Cycle 1y
Komi 6.5
Editions 65
2026 · Edition #65
Champion:
Kyo Kagen
· Runner-up:
Fujita Akihiko
Preliminary Final
2 games
Final Preliminary, Group Final
3 games
A Preliminary, Group Final
6 games
Challengers' Final
1 game
Preliminary C
18 games
Jan 29
Awaji Shuzo
B+2.5
Hoshiai Shiho
Jan 29
Shuto Shun
B+R
Yoda Norimoto
Feb 2
Mimura Tomoyasu
B+R
Xiong Feng
Feb 2
Toyoda Hirohito
B+R
Mukai Chiaki
Feb 2
Akiyama Jiro
B+0.5
Onishi Kenya
Feb 2
Takayama Nonoka
W+R
Inaba Takahiro
Feb 5
Takemiya Masaki
B+1.5
フィトラ
Feb 5
Cho Chikun
B+R
Ishikura Noboru
Mar 5
Komatsu Hideki
B+R
Miyazawa Goro
Mar 5
Yoshida Touma
B+R
Cho Zuiketsu
Mar 9
Okada Shinichiro
B+3.5
Rin Kaiho
Mar 9
Yo Chito
B+R
Ando Kazushige
Mar 9
Ishida Yoshio
W+R
Takekiyo Isamu
Mar 9
Mannami Kana
B+R
Ryu Shikun
Mar 12
Hane Ayaka
B+R
Tsukuda Akiko
Mar 12
Okuda Aya
W+R
Shuto Shun
Mar 12
Cho Chikun
W+2.5
Chin Hakusho
Mar 12
Takemiya Masaki
W+7.5
Kuwabara Yoko
Preliminary B
23 games
Apr 6
Moro Arisa
B+R
I Ryo
Apr 9
Mori Chisaki
B+R
Nyu Eiko
Apr 9
Nakaonoda Tomomi
B+R
Yanagihara Saki
Apr 13
Tsuji Hana
B+R
Ogaki Yusaku
Apr 13
Chin Hakusho
W+7.5
Sho Gyokuyo
Apr 15
Mori Chisaki
B+R
Nyu Eiko
Apr 15
Moro Arisa
W+R
I Ryo
Apr 23
Jo Bunen
B+R
Yoshihara Yukari
Apr 30
Onishi Ryuhei
B+R
I Ryo
Apr 30
Li Yixiu
B+R
Yoshida Touma
May 7
Ogaki Yusaku
W+R
Tsuruyama Atsushi
May 7
Rin Shien
W+R
Mimura Tomoyasu
May 7
Mizokami Tomochika
W+R
Sho Gyokuyo
May 11
Mitani Tetsuya
B+R
Okada Shinichiro
May 11
Komatsu Hideki
W+R
Mochizuki Kenichi
May 11
Cho Sonjin
W+1.5
Jo Bunen
May 14
Kobayashi Satoru
W+R
Rin Kanketsu
May 14
Muramoto Wataru
W+6.5
Yamada Kimio
May 18
Miura Taro
B+R
Shuto Shun
May 18
So Yokoku
B+5.5
Takanashi Seiken
May 18
Tsuneishi Takashi
W+R
Suzuki Ayumi
May 25
Oomote Takuto
W+R
Kuwabara Itsuki
May 25
Takao Shinji
B+R
Kono Mitsuki
Preliminary A
48 games
Apr 15
Tanaka Koyu
B+R
Mishima Hibiki
Apr 21
Tanaka Koyu
B+R
Mishima Hibiki
Apr 22
Sakakibara Masateru
W+R
Kawabata Atsushi
May 4
Kurahashi Masayuki
B+R
Hasegawa Sunao
May 11
Kumaki Teruya
B+R
Francis Meyer
May 11
Son Hideyo
W+R
Watanabe Kandai
May 24
Hashimoto Kan
B+R
Ono Ayako
May 27
Omote Yuto
B+R
Hatanaka Hoshinobu
May 27
Kurahashi Masayuki
W+R
U Boi
May 27
Hara Masakazu
B+R
Yokota Shigeaki
May 28
Okuma Yuto
W+1.5
Imabun Taro
May 31
Kimu Pyonmin
B+0.5
Kiyonari Tetsuya
Jun 4
Jo Bunen
B+R
Son Makoto
Jun 6
Jo Bunen
W+R
Son Makoto
Jun 6
Abe Yoshiki
W+R
Furuya Yutaka
Jun 6
Yuki Satoshi
B+R
Inoue Naoki
Jun 6
Kawabata Atsushi
W+0.5
Yata Naoki
Jun 6
Seto Taiki
B+R
Nishimura Jin
Jun 11
Shida Tatsuya
B+R
Nakano Hironari
Jun 11
Xie Yimin
B+0.5
Onishi Ryuhei
Jun 15
Hane Naoki
B+5.5
Yanagisawa Satoshi
Jun 15
Anzai Nobuaki
W+R
Yo Chito
Jun 15
Terayama Rei
W+R
Ito Masashi
Jun 15
Rin Kanketsu
W+R
Hirose Yuichi
Jun 15
Yokotsuka Riki
B+13.5
Kato Atsushi
Jun 17
Kumaki Teruya
B+R
Kimu Pyonmin
Jun 18
Kuwabara Itsuki
W+R
Takao Shinji
Jun 18
Matsumoto Takehisa
W+R
Han Zenki
Jun 18
Sho Gyokuyo
B+3.5
Morita Michihiro
Jun 18
Sakai Yuki
B+2.5
Yoda Ozora
Jun 18
Adachi Toshimasa
B+R
Miura Taro
Jun 18
Takao Mari
W+R
Tsuruta Kazushi
Jun 20
Nishi Takenobu
B+R
Tanaka Kentaro
Jun 22
Kikkawa Hajime
W+R
Otake Yu
Jun 22
Hashimoto Yujiro
W+R
Cho U
Jun 22
Tsuruyama Atsushi
W+1.5
Cho Riyu
Jun 24
Yuki Satoshi
W+R
Fujii Shuya
Jul 6
Ueno Risa
W+R
Kono Rin
Jul 6
Takeuchi Kosuke
B+R
Takao Shinji
Jul 13
Yokotsuka Riki
B+R
Mimura Tomoyasu
Jul 16
Shida Tatsuya
B+R
Hane Naoki
Jul 16
Otake Yu
B+1.5
Yamashiro Hiroshi
Jul 16
Fujii Koki
B+R
Adachi Toshimasa
Jul 23
Yo Chito
W+2.5
Uchida Shuhei
Jul 23
Hirose Yuichi
W+R
Cho Riyu
Jul 23
Hamakado Hibiki
W+3.5
Ko Iso
Jul 27
Sakai Yuki
B+R
Xie Yimin
Jul 27
Yokotsuka Riki
B+R
Mimura Tomoyasu
Preliminary
15 games
Feb 20
Oya Koichi
W+4.5
Jo Bunen
Feb 20
Izawa Akino
W+R
Moro Arisa
Jun 1
Ueno Risa
B+R
Awaji Shuzo
Jun 8
O Rissei
B+R
Kataoka Satoshi
Jun 15
Suzuki Ayumi
W+0.5
Ueno Asami
Jul 2
Ueno Risa
W+R
Kono Rin
Jul 13
O Rissei
W+R
Ueno Asami
Jul 30
Cho U
B+R
Sho Gyokuyo
Aug 6
Yokotsuka Riki
B+R
Takeuchi Kosuke
Aug 10
U Boi
W+R
Ito Masashi
Aug 20
Nishi Takenobu
W+5.5
Ko Iso
Aug 24
Yamashita Keigo
B+4.5
Shida Tatsuya
Sep 7
O Meien
W+R
Mutsuura Yuta
Sep 14
Ko Iso
W+R
Ida Atsushi
Sep 14
Tanaka Yuki
B+R
Cho U
C Preliminary
1 game
A Preliminary
1 game
2026-09-03
1 game
2026-08-27
1 game
2026-03-16
1 game
2026-03-04
2 games
2026-02-20
2 games