The Ryusei tournament is a knockout lightning tournament, organized by the Nihon Ki-in. It was established in 1991.
Time is 30 secs/move, 10 times 1 minute. Komi is 6.5. The winner earns around 5,000,000 Yen ($45.000).
| Ryu-sei Tournament
(竜星戦, 龍星戦)
| ||||
|---|---|---|---|---|
| Edition | Final | Details | ||
| 29th | 2020 | Ichiriki Ryo | Iyama Yuta | 1-0 |
| 28th | 2019 | Ichiriki Ryo | Ueno Asami | 1-0 |
| 27th | 2018 | Ichiriki Ryo | Motoki Katsuya | 1-0 |
| 26th | 2017 | Shibano Toramaru | Yu Zhengqi | 1-0 |
| 25th | 2016 | Ichiriki Ryo | Iyama Yuta | 1-0 |
| 24th | 2015 | Yuki Satoshi | Cho Chikun | W+F |
| 23rd | 2014 | Kono Rin | Yu Zhengqi | 1-0 |
| 22nd | 2013 | Yamashita Keigo | Kono Rin | 1-0 |
| 21st | 2012 | Iyama Yuta | Rin Kanketsu | 1-0 |
| 20th | 2011 | Iyama Yuta | Yuki Satoshi | 1-0 |
| 19th | 2010 | Yamashita Keigo | Nakano Hironari | 1-0 |
| 18th | 2009 | Iyama Yuta | Cho U | 1-0 |
| 17th | 2008 | Kono Rin | Cho U | 1-0 |
| 16th | 2007 | Cho U | Yuki Satoshi | 1-0 |
| 15th | 2006 | Cho U | Yuki Satoshi | 1-0 |
| 14th | 2005 | Yuki Satoshi | Cho U | 1-0 |
| 13th | 2004 | Takao Shinji | Yamada Kimio | 1-0 |
| 12th | 2003 | Kobayashi Koichi | Hane Naoki | 1-0 |
| 11th | 2002 | Kobayashi Koichi | O Meien | 1-0 |
| 10th | 2001 | Kato Masao | Cho U | 1-0 |
| 9th | 2000 | Takao Shinji | Takagi Shoichi | 1-0 |
| 8th | 1999 | Yamada Kimio | Morita Michihiro | 1-0 |
| 7th | 1997 | Kato Masao | Cho Chikun | 1-0 |
| 6th | 1996 | Kobayashi Koichi | Komatsu Hideki | 1-0 |
| 5th | 1995 | Kobayashi Satoru | Nakaonoda Tomomi | 1-0 |
| 4th | 1994 | Morita Michihiro | Rin Kaiho | 1-0 |
| 3rd | 1993 | Cho Chikun | Ryu Shikun | 1-0 |
| 2nd | 1992 | Otake Hideo | Cho Chikun | 1-0 |
| 1st | 1991 | Cho Chikun | Ishida Yoshio | 1-0 |
