Chunlan Cup

The Chunlan Cup, officially the Chunlan Cup World Professional Weiqi Championship (Chinese: 春兰杯世界职业围棋锦标赛), is an international Go competition.

Outline

The Chunlan Cup is an international Go tournament sponsored and hosted by the Chunlan Group of China. 24 players are chosen as follows:

• 3 top players of last tournament
• 8 from  China
• 5 from  Japan
• 4 from  South Korea
• 2 from  Chinese Taipei
• 1 from North America
• 1 from Europe

The 24 players are reduced to 16 after the first round. The top 8 players are qualified for the next round while the bottom 8 play each other in a knockout tournament.

Each player has 2 hours and 30 minutes of time with five 60-second byoyomi periods, since the 12th cup.^[1] (Formerly, the time limit was 3 hours with five 60-second byoyomi periods.^[2]) The komi is 7.5 points. The winner's prize is US$150,000.

Past winners and runners-up

Edition	Year	Winner	Score	Runner-up
1st	1998–1999	Cho Hunhyun	2–1	Lee Chang-ho
2nd	1999–2000	O Rissei	2–1	Ma Xiaochun
3rd	2000–2001	Yoo Changhyuk	2–1	O Rissei
4th	2002–2003	Lee Chang-ho	2–0	Hane Naoki
5th	2003–2005	Lee Chang-ho	2–1	Zhou Heyang
6th	2006–2007	Gu Li	2–0	Chang Hao
7th	2008–2009	Chang Hao	2–0	Lee Chang-ho
8th	2010–2011	Lee Sedol	2–1[3]	Xie He
9th	2012–2013	Chen Yaoye	2–1[4]	Lee Sedol
10th	2014–2015	Gu Li	2–0	Zhou Ruiyang
11th	2016–2017	Tan Xiao	2–1[2]	Park Yeong-hun
12th	2018–2019	Park Junghwan	2–0[1]	Park Yeong-hun
13th	2020–2021	Shin Jin-seo	2–0[5]	Tang Weixing
14th	2022–2023	Byun Sang-il	2–0[6]	Li Xuanhao

By nation

Nation	Winners	Runners-up
South Korea	8	5
China	5	7
Japan	1	2