Players › Osamu Katsuura

Osamu Katsuura

Player No.	96
Rank	9-dan
Date of birth	May 8, 1946
Birthplace	Hokkaido
Teacher	Touichi Watanabe Honorary 9-dan (deceased)

Junisen terms29

Career record172W-137L

Win rate0.557

Deviation score (FY1999)43.1

Best deviation score64.4
FY1984

Rating history and all games →

Junisen record

Term	Class	Rank	Record	Up/down	Deviation
55th term	Class B2	17	1W-9L	Demerit	41.8
54th term	Class B2	14	4W-6L		43.0
53rd term	Class B2	5	4W-6L		45.3
52nd term	Class B2	4	6W-4L		53.3
51st term	Class B2	3	7W-3L		51.2
50th term	Class B2	9	7W-3L		55.7
49th term	Class B2	2	5W-5L		57.0
48th term	Class B1	6	3W-9L	Relegated	50.3
47th term	Class B1	4	5W-6L		59.8
46th term	Class B1	8	8W-4L		62.2
45th term	Class B1	2	5W-8L		53.2
44th term	Class A	5	4W-6L	Relegated	64.1
43rd term	Class A	9	5W-3L		64.4
42nd term	Class B1	5	9W-3L	Promoted	57.7
41st term	Class B1	1	7W-5L		57.0
40th term	Class A	3	2W-7L	Relegated	64.4
39th term	Class A	6	6W-3L		63.5
38th term	Class A	8	4W-5L		63.3
37th term	Class A	2	3W-6L		62.9
36th term	Class A	9	5W-3L		57.6
30th term	Class B1	5	10W-3L	Promoted	62.2
29th term	Class B1	10	8W-5L		56.7
28th term	Class B1	14	6W-7L		61.2
27th term	Class B2	4	8W-2L	Promoted	59.5
26th term	Class B2	15	5W-3L		50.9
25th term	Class C1	2	10W-2L	Promoted	53.5
24th term	Class C1	15	9W-3L		56.8
23rd term	Class C2	5	9W-3L	Promoted	56.2
22nd term	Class C2	13	7W-5L		47.7

How the deviation score is calculated: see here.

Terms in each class

Class A	7 terms
Class B1	9 terms
Class B2	9 terms
Class C1	2 terms
Class C2	2 terms

Promotion history

Nov 1, 1985	9-dan
Apr 1, 1976	8-dan
Apr 1, 1973	7-dan
Apr 1, 1971	6-dan
Apr 1, 1969	5-dan
Apr 1, 1967	4-dan
1963	1-dan

Career win milestones

100 wins	Oct 16, 1972 Junisen
200 wins	Jun 1, 1976 Oi-sen
300 wins	Aug 8, 1980 Kachinuki-sen
400 wins	Jun 8, 1984 Kio-sen
500 wins	Jul 13, 1988 All-Japan Pro
600 wins	May 14, 1993 Ryuo-sen
700 wins	Sep 8, 2010 Oi-sen

Best wins (highest-rated opponents)

Oct 14, 1976	Makoto Nakahara 1959	Meisho-sen
Oct 3, 1989	Yoshiharu Habu 1953	Kisei-sen
Sep 16, 1976	Makoto Nakahara 1953	Oi-sen
Jun 10, 1980	Kunio Yonenaga 1948	Judan-sen
Dec 21, 1979	Yasuharu Ooyama 1938	Osho-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

Kunio Yonenaga	14W-30L	Head-to-head
Kazuyoshi Nishimura	29W-10L	Head-to-head
Hifumi Katoh	16W-21L	Head-to-head
Yasuharu Ooyama	12W-23L	Head-to-head
Makoto Nakahara	9W-26L	Head-to-head
Keiji Mori	12W-20L	Head-to-head
Nobuyuki Oouchi	10W-21L	Head-to-head
Kiyozumi Kiriyama	17W-13L	Head-to-head
Kazuo Ishida	16W-11L	Head-to-head
Kazuo Manabe	13W-14L	Head-to-head
Hidemitsu Moriyasu	12W-14L	Head-to-head
Tatsuya Futakami	15W-8L	Head-to-head

Head-to-head with other players →