Players › Ayumu Matsuo

Ayumu Matsuo

Player No.	231
Rank	8-dan
Date of birth	Mar 29, 1980
Birthplace	Aichi
Teacher	Kazuharu Shoshi 8-dan

Junisen terms28

Career record168W-131L

Win rate0.562

Deviation score (FY2025)49.3

Best deviation score68.2
FY2014

Rating history and all games →

Junisen record

Term	Class	Rank	Record	Up/down	Deviation
85th term	Class B2	15	3W-2L
84th term	Class B2	26	5W-5L		49.3
83rd term	Class B2	8	1W-9L	Demerit	41.8
82nd term	Class B2	10	6W-4L		55.9
81st term	Class B2	2	5W-5L		53.0
80th term	Class B1	9	3W-9L	Relegated	57.8
79th term	Class B1	9	5W-7L		51.6
78th term	Class B1	10	5W-7L		58.1
77th term	Class B1	11	5W-7L		56.0
76th term	Class B1	5	3W-7L		60.9
75th term	Class B1	3	6W-6L		59.9
74th term	Class B1	3	7W-5L		61.2
73rd term	Class B1	4	8W-4L		68.2
72nd term	Class B1	4	8W-4L		59.2
71st term	Class B1	8	7W-5L		60.2
70th term	Class B1	4	5W-7L		58.7
69th term	Class B1	5	7W-5L		56.8
68th term	Class B1	12	8W-4L		68.1
67th term	Class B2	4	8W-2L	Promoted	58.8
66th term	Class B2	20	7W-3L		64.8
65th term	Class C1	5	8W-2L	Promoted	59.3
64th term	Class C1	11	7W-3L		57.8
63rd term	Class C1	14	6W-4L		54.7
62nd term	Class C1	4	5W-5L		54.1
61st term	Class C1	26	8W-2L		58.9
60th term	Class C2	20	10W-0L	Promoted	66.8
59th term	Class C2	7	5W-5L		48.9
58th term	Class C2	44	7W-3L		55.1

How the deviation score is calculated: see here.

Terms in each class

Class B1	13 terms
Class B2	7 terms
Class C1	5 terms
Class C2	3 terms

Promotion history

Jul 2, 2015	8-dan
Sep 27, 2007	7-dan
Apr 21, 2006	6-dan
Apr 1, 2002	5-dan
Apr 1, 1999	4-dan
1997	1-dan

Career win milestones

100 wins	Mar 17, 2003 Kachinuki-sen
200 wins	Jun 15, 2007 Junisen
300 wins	Apr 8, 2011 Osho-sen
400 wins	Jul 2, 2015 Junisen
500 wins	Oct 29, 2020 Junisen

Best wins (highest-rated opponents)

Jul 29, 2014	Yoshiharu Habu 2070	Ginga-sen
Oct 29, 2020	Takuya Nagase 2011	Junisen
Sep 13, 2011	Akira Watanabe 1985	Kio-sen
Jan 8, 2010	Toshiaki Kubo 1963	Junisen
Jun 7, 2002	Kazuki Kimura 1940	Oi-sen

Career wins and ratings are counted from the games recorded on this site (official games from FY1964, and Junisen games before that) and may differ from official records.

Frequent opponents

Chikara Akutsu	15W-21L	Head-to-head
Kazuki Kimura	15W-17L	Head-to-head
Takayuki Yamasaki	11W-18L	Head-to-head
Tadahisa Maruyama	11W-13L	Head-to-head
Masataka Goda	12W-10L	Head-to-head
Hisashi Namekata	8W-12L	Head-to-head
Nobuyuki Yashiki	9W-10L	Head-to-head
Koichi Fukaura	12W-7L	Head-to-head
Takeshi Fujii	10W-8L	Head-to-head
橋本崇載	9W-8L	Head-to-head
Toshiaki Kubo	8W-8L	Head-to-head
Daisuke Suzuki	12W-4L	Head-to-head

Head-to-head with other players →