Yo Seiki
Follow
664
Games
61%
Win rate
12
Titles
25–21
2026 Record
54.3%
Win Rate
46
Games
1W
Current Streak
As Black: 16/22 (73%)
As White: 9/24 (38%)
Best this year: 7W
Key rivalries
Iyama Yuta
11–25
Kyo Kagen
11–25
Ichiriki Ryo
10–23
Shibano Toramaru
6–20
Yamashita Keigo
15–8
Murakawa Daisuke
16–5
Tournaments
Japanese National Squad Training
Active
8W–6L
14 games
2026-10-10
Meijin #51
Out
3W–4L
7 games
2026-07-27
League
Kisei #51
Out
2W–3L
5 games
2026-08-27
S League
NHK Cup #73
Runner-up
3W–1L
4 games
2026-03-15
Final · Semifinal · Quarterfinal · Round 3
Gosei #52
Out
2W–1L
3 games
2026-10-07
A Preliminary, Group Final · Preliminary A · A Preliminary
Nongshim Cup #28
Out
2W–1L
3 games
2026-09-11
Game 3 · Preliminary
Oza #74
Out
2W–1L
3 games
2026-07-23
Main Draw Semifinal · Main Draw
Tengen #52
Out
1W–1L
2 games
2026-04-30
Main Draw · Round 1
Chunlan Cup #16
Out
0W–1L
1 game
2026-03-27
Preliminary
Honinbo #82
Out
0W–1L
1 game
2026-09-24
A Preliminary
Judan #65
Out
1W–0L
1 game
2026-09-28
Preliminary Final
Kansai vs Haifeng Exchange
Active
1W–0L
1 game
2026-02-20
LG Cup World Baduk Championship #30
Out
0W–1L
1 game
2026-04-14
Preliminary Round 1
Key Opponents in 2026
| Opponent | Games | Record | Split |
|---|---|---|---|
| Fukuoka Kotaro 🇯🇵 | 5 | 1–4 | |
| Omote Yuto 🇯🇵 | 4 | 4–0 | |
| Ida Atsushi 🇯🇵 | 4 | 0–4 | |
| Kyo Kagen 🇯🇵 | 4 | 2–2 | |
| Motoki Katsuya 🇯🇵 | 3 | 2–1 | |
| Iyama Yuta 🇯🇵 | 3 | 0–3 | |
| Takao Shinji 🇯🇵 | 2 | 2–0 | |
| Hirata Tomoya 🇯🇵 | 2 | 2–0 | |
| Ha Yeong-il 🇰🇷 | 1 | 0–1 | |
| Yokotsuka Riki 🇯🇵 | 1 | 1–0 |
Games
| Date | Opponent | Color | Result | Event | Round |
|---|---|---|---|---|---|
| 2026-10-10 | Omote Yuto | B | B+R | Japanese National Squad Training | |
| 2026-10-07 | Ha Yeong-il | W | B+1.5 | Gosei | A Preliminary, Group Final |
| 2026-09-28 | Yokotsuka Riki | B | B+R | Judan | Preliminary Final |
| 2026-09-24 | Tanaka Kentaro | W | B+0.5 | Honinbo | A Preliminary |
| 2026-09-11 | Yang Dingxin | W | B+R | Nongshim Cup | Game 3 |
| 2026-08-27 | Motoki Katsuya | W | B+1.5 | Kisei | S League |
| 2026-08-22 | Fukuoka Kotaro | B | W+R | Japanese National Squad Training | |
| 2026-08-13 | Takao Shinji | B | B+R | Kisei | S League |
| 2026-08-01 | Ida Atsushi | W | B+R | Japanese National Squad Training | |
| 2026-07-27 | Ida Atsushi | W | B+R | Meijin | League |
| 2026-07-25 | Sakai Yuki | W | B+1.5 | Japanese National Squad Training | |
| 2026-07-23 | Fukuoka Kotaro | W | B+R | Oza | Main Draw Semifinal |
| 2026-07-21 | Motoki Katsuya | W | W+R | Nongshim Cup | Preliminary |
| 2026-07-21 | Kyo Kagen | B | B+R | Nongshim Cup | Preliminary |
| 2026-07-16 | Motoki Katsuya | B | B+R | Meijin | League |
| 2026-07-09 | Takao Shinji | B | B+R | Oza | Main Draw |
| 2026-07-04 | Otake Yu | B | B+R | Japanese National Squad Training | |
| 2026-07-02 | Kyo Kagen | B | W+R | Kisei | S League |
| 2026-06-27 | Ida Atsushi | B | W+R | Japanese National Squad Training | |
| 2026-06-24 | Mine Yasuhiro | B | B+R | Gosei | Preliminary A |
| 2026-06-18 | Iyama Yuta | W | B+R | Kisei | S League |
| 2026-06-10 | Imamura Toshiya | B | B+R | Gosei | A Preliminary |
| 2026-06-06 | Omote Yuto | W | W+3.5 | Japanese National Squad Training | |
| 2026-06-04 | Kyo Kagen | B | B+R | Meijin | League |
| 2026-05-28 | Ichiriki Ryo | W | W+2.5 | Kisei | S League |
| 2026-05-16 | Omote Yuto | W | W+R | Japanese National Squad Training | |
| 2026-05-13 | Fujita Akihiko | W | W+R | Oza | Main Draw |
| 2026-05-02 | Fujisawa Rina | B | B+R | Japanese National Squad Training | |
| 2026-04-30 | Murakawa Daisuke | B | W+R | Tengen | Main Draw |
| 2026-04-18 | Hirata Tomoya | W | W+R | Japanese National Squad Training | |
| 2026-04-16 | Shibano Toramaru | B | W+R | Meijin | League |
| 2026-04-14 | Kyo Kagen | W | B+R | LG Cup World Baduk Championship | Preliminary Round 1 |
| 2026-04-04 | Omote Yuto | B | B+R | Japanese National Squad Training | |
| 2026-04-03 | Ueno Risa | W | W+R | Japanese National Squad Training | |
| 2026-03-27 | Fukuoka Kotaro | B | W+R | Chunlan Cup | Preliminary |
| 2026-03-21 | Ida Atsushi | W | B+0.5 | Japanese National Squad Training | |
| 2026-03-16 | Fukuoka Kotaro | W | B+R | Meijin | League |
| 2026-03-15 | Iyama Yuta | W | B+2.5 | NHK Cup | Final |
| 2026-03-14 | Miura Taro | W | B+R | Japanese National Squad Training | |
| 2026-03-08 | Fukuoka Kotaro | W | W+R | NHK Cup | Semifinal |
| 2026-02-23 | Kurabara Itsuki | W | W+R | Meijin | League |
| 2026-02-22 | Yamashita Keigo | B | B+R | NHK Cup | Quarterfinal |
| 2026-02-20 | Lin Yancheng | B | B+R | Kansai vs Haifeng Exchange | |
| 2026-02-16 | Hirata Tomoya | B | B+R | Tengen | Round 1 |
| 2026-01-22 | Iyama Yuta | W | B+R | Meijin | League |
| 2026-01-18 | Koyama Kuya | B | B+R | NHK Cup | Round 3 |