Weon Seong-chin
Follow
879
Games
55%
Win rate
4
Titles
19–24
2009 Record
44.2%
Win Rate
43
Games
5W
Best Streak
As Black: 8/18 (44%)
As White: 11/25 (44%)
Key rivalries
Kang Dongyun
18–16
Choi Cheolhan
13–18
Lee Sedol
12–15
Pak Yeong-hun
11–13
Lee Changho
12–12
Park Junghwan
6–18
Tournaments
Myeongin #37
Runner-up
8W–4L
12 games
2009-12-10
Final, Game 4 · Final, Game 3 · Final, Game 2 · Final, Game 1 · Semifinal, Game 3 · Semifinal, Game 2 · Semifinal, Game 1 · B League
Korean Baduk League
5W–6L
11 games
2009-11-14
Post-season, Semi-final · Round 1
GS Caltex Cup #14
Out
2W–4L
6 games
2009-10-16
League
KBS Baduk King
Out
2W–2L
4 games
2009-12-14
Losers' Section, Round 3 · Losers' Section, Round 1 · Winners' Section, Round 2 · Winners' Section, Round 1
37th Korean Myeongin
0W–2L
2 games
2009-12-10
title match #3 · title match #4
BC Card Cup
Out
1W–1L
2 games
2009-04-05
Round 3 · Round 2
LG Cup World Baduk Championship #14
Out
1W–1L
2 games
2009-05-21
Round 2 · Round 1
Chunlan Cup #8
Out
0W–1L
1 game
2009-02-19
Korean qualifier, Semi-final
Fujitsu Cup #22
Out
0W–1L
1 game
2009-04-11
Round 1
Maxim Cup #10
Out
0W–1L
1 game
2009-01-07
Semi-final
Sipdan
Out
0W–1L
1 game
2009-09-18
Round 1
Key Opponents in 2009
| Opponent | Games | Record | Split |
|---|---|---|---|
| Lee Changho 🇰🇷 | 8 | 2–6 | |
| Hong Seong-chi 🇰🇷 | 5 | 2–3 | |
| Choi Cheolhan 🇰🇷 | 3 | 1–2 | |
| Han Sang-hun 🇰🇷 | 2 | 1–1 | |
| Park Junghwan 🇰🇷 | 2 | 2–0 | |
| Han Ung-kyu 🇰🇷 | 1 | 1–0 | |
| Yun Junsang 🇰🇷 | 1 | 0–1 | |
| Hong Ki-p'yo 🇰🇷 | 1 | 1–0 | |
| Ch'oe Myeong-hun 🇰🇷 | 1 | 1–0 | |
| Kim Hyeong-u 🇰🇷 | 1 | 1–0 |
Games
| Date | Opponent | Color | Result | Event | Round |
|---|---|---|---|---|---|
| 2009-12-14 | Lee Changho | W | B+R | KBS Baduk King | Losers' Section, Round 3 |
| 2009-12-10 | Lee Changho | W | B+0.5 | Myeongin | Final, Game 4 |
| 2009-12-10 | Lee Changho | W | B+0.5 | 37th Korean Myeongin | title match #4 |
| 2009-12-08 | Lee Changho | B | W+3.5 | 37th Korean Myeongin | title match #3 |
| 2009-12-08 | Lee Changho | B | W+3.5 | Myeongin | Final, Game 3 |
| 2009-12-03 | Lee Changho | W | W+1.5 | Myeongin | Final, Game 2 |
| 2009-12-01 | Lee Changho | B | B+R | Myeongin | Final, Game 1 |
| 2009-11-14 | Han Ung-kyu | W | W+R | Korean Baduk League | Post-season, Semi-final |
| 2009-11-13 | Hong Seong-chi | W | W+1.5 | Myeongin | Semifinal, Game 3 |
| 2009-11-12 | Hong Seong-chi | B | B+3.5 | Myeongin | Semifinal, Game 2 |
| 2009-11-10 | Hong Seong-chi | W | B+R | Myeongin | Semifinal, Game 1 |
| 2009-10-25 | Lee Changho | W | B+5.5 | Myeongin | B League |
| 2009-10-16 | Yun Junsang | B | W+R | GS Caltex Cup | League |
| 2009-10-07 | Hong Ki-p'yo | B | B+R | GS Caltex Cup | League |
| 2009-10-01 | Choi Cheolhan | W | B+R | Korean Baduk League | |
| 2009-09-29 | Ch'oe Myeong-hun | B | B+R | Myeongin | B League |
| 2009-09-20 | Kim Hyeong-u | W | W+R | Korean Baduk League | |
| 2009-09-18 | Choi Cheolhan | B | W+R | Sipdan | Round 1 |
| 2009-09-15 | Han Sang-hun | W | W+R | Myeongin | B League |
| 2009-08-31 | Paek Tae-hyeon | W | W+R | KBS Baduk King | Losers' Section, Round 1 |
| 2009-08-29 | Park Junghwan | W | W+R | Korean Baduk League | |
| 2009-08-22 | Hong Seong-chi | B | W+4.5 | Korean Baduk League | |
| 2009-08-20 | Yun Seong-hyeon | W | W+R | Myeongin | B League |
| 2009-08-15 | Mok Chin-seok | B | W+0.5 | Korean Baduk League | |
| 2009-07-30 | An Hyeong-chun | B | B+R | Myeongin | B League |
| 2009-07-27 | Han Sang-hun | W | B+3.5 | KBS Baduk King | Winners' Section, Round 2 |
| 2009-07-09 | Chin Tong-kyu | W | W+R | Korean Baduk League | |
| 2009-07-07 | Choi Cheolhan | B | B+R | GS Caltex Cup | League |
| 2009-06-28 | Kang Yu-t'aek | B | B+R | Korean Baduk League | |
| 2009-06-21 | Yi T'ae-hyeon | W | B+R | Korean Baduk League | |
| 2009-06-05 | Yi Yeong-ku | W | B+R | GS Caltex Cup | League |
| 2009-05-30 | Ko Keun-t'ae | B | W+R | Korean Baduk League | |
| 2009-05-24 | Hong Seong-chi | B | W+5.5 | Korean Baduk League | Round 1 |
| 2009-05-21 | Hu Yaoyu | W | B+1.5 | LG Cup World Baduk Championship | Round 2 |
| 2009-05-18 | Yamashita Keigo | W | W+6.5 | LG Cup World Baduk Championship | Round 1 |
| 2009-05-11 | Cho Han-seung | W | B+0.5 | GS Caltex Cup | League |
| 2009-04-11 | Iyama Yuta | B | W+R | Fujitsu Cup | Round 1 |
| 2009-04-05 | Lee Sedol | W | B+R | BC Card Cup | Round 3 |
| 2009-03-27 | An Cho-yeong | W | B+R | GS Caltex Cup | League |
| 2009-03-23 | Park Junghwan | B | B+R | KBS Baduk King | Winners' Section, Round 1 |
| 2009-03-20 | Wang Lei Sr. | W | W+R | BC Card Cup | Round 2 |
| 2009-02-19 | Heo Yeong-ho | B | W+0.5 | Chunlan Cup | Korean qualifier, Semi-final |
| 2009-01-07 | Pak Yeong-hun | W | B+R | Maxim Cup | Semi-final |