Players › Michio Ariyoshi

Michio Ariyoshi

Player No.	66
Rank	9-dan
Date of birth	Jul 27, 1935
Birthplace	Okayama
Teacher	Yasuharu Ooyama15th Lifetime Meijin (deceased)

Junisen terms54

Career record278W-284L

Win rate0.495

Deviation score (FY2009)35.6

Best deviation score69.7
FY1972

Rating history and all games →

Junisen record

Term	Class	Rank	Record	Up/down	Deviation
68th term	Class C2	32	2W-8L	Relegated	35.6
67th term	Class C2	39	4W-6L		36.7
66th term	Class C2	10	0W-10L	Demerit	22.8
65th term	Class C2	43	7W-3L		42.7
64th term	Class C2	3	1W-9L	Demerit	36.3
63rd term	Class C1	29	1W-9L	Relegated	28.2
62nd term	Class C1	7	2W-8L	Demerit	40.8
61st term	Class C1	1	6W-4L		46.1
60th term	Class B2	21	3W-7L	Relegated	38.0
59th term	Class B2	7	3W-7L	Demerit	53.0
58th term	Class B2	10	5W-5L		47.5
57th term	Class B2	2	5W-5L		46.4
56th term	Class B1	7	2W-10L	Relegated	41.4
55th term	Class B1	2	5W-7L		48.3
54th term	Class A	8	1W-8L	Relegated	50.8
53rd term	Class A	5	3W-6L		54.2
52nd term	Class A	7	4W-5L		54.2
51st term	Class A	5	4W-5L		49.9
50th term	Class A	8	5W-4L		56.0
49th term	Class A	9	4W-5L		61.9
48th term	Class B1	4	10W-2L	Promoted	60.4
47th term	Class B1	2	6W-5L		57.7
46th term	Class A	8	1W-8L	Relegated	60.9
45th term	Class A	7	3W-6L		59.7
44th term	Class A	9	5W-5L		59.5
43rd term	Class B1	4	9W-3L	Promoted	69.0
42nd term	Class B1	4	7W-5L		59.9
41st term	Class B1	10	8W-4L		61.3
40th term	Class B1	4	4W-8L		55.9
39th term	Class B1	3	7W-5L		60.6
38th term	Class B1	3	8W-4L		63.8
37th term	Class B1	1	6W-5L		66.1
36th term	Class A	3	1W-7L	Relegated	60.0
30th term	Class A	7	6W-3L		67.1
29th term	Class A	6	5W-5L		58.9
28th term	Class A	7	5W-5L		62.7
27th term	Class A	9	5W-5L		69.7
26th term	Class A	4	2W-6L		60.5
25th term	Class A	2	4W-4L		61.6
24th term	Class A	1	5W-3L		66.3
23rd term	Class A	5	8W-2L	Challenger	67.0
22nd term	Class A	5	5W-4L		59.7
21st term	Class A	7	4W-4L		60.7
20th term	Class A	10	4W-5L		65.7
19th term	Class B1	7	10W-4L	Promoted	58.0
18th term	Class B1	5	5W-6L
17th term	Class B1	2	8W-5L
16th term	Class B1	5	6W-4L
15th term	Class B1	12	6W-5L
14th term	Class B2	4	9W-3L	Promoted
13th term	Class B2	12	8W-4L
12th term	Class C1	11	10W-2L	Promoted
11th term	Class C2 (West)	7	10W-2L	Promoted
10th term	Class C2	17	11W-5L

How the deviation score is calculated: see here.

Titles won

Kisei-sen	1 terms (21st term)

Ryuo-sen and Eio-sen from 2007 only; others are all-time records.

Terms in each class

Class A	21 terms
Class B1	16 terms
Class B2	6 terms
Class C1	4 terms
Class C2	6 terms

Promotion history

Apr 1, 1979	9-dan
Apr 1, 1965	8-dan
Apr 1, 1960	7-dan
Apr 1, 1958	6-dan
Apr 1, 1957	5-dan
May 15, 1955	4-dan
1953	1-dan

Career win milestones

100 wins	Nov 12, 1965 Osho-sen
200 wins	Nov 24, 1969 Osho-sen
300 wins	Mar 8, 1974 Junisen
400 wins	Sep 30, 1977 Osho-sen
500 wins	Jan 29, 1981 Judan-sen
600 wins	Aug 16, 1984 Kisei-sen
700 wins	Feb 6, 1988 Hayazashi-sen
800 wins	Jan 31, 1994 Kisei-sen
900 wins	Dec 21, 2001 Junisen

Best wins (highest-rated opponents)

Jan 12, 1973	Makoto Nakahara 2021	Kisei-sen
Jan 22, 1973	Makoto Nakahara 2014	Kisei-sen
Feb 5, 1973	Makoto Nakahara 2008	Kisei-sen
Jan 6, 1972	Makoto Nakahara 1988	Osho-sen
Feb 2, 1971	Makoto Nakahara 1983	Junisen

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 Naitou	38W-47L	Head-to-head
Yasuharu Ooyama	28W-37L	Head-to-head
Makoto Nakahara	18W-41L	Head-to-head
Tatsuya Futakami	30W-23L	Head-to-head
Hifumi Katoh	23W-30L	Head-to-head
Kunio Yonenaga	15W-38L	Head-to-head
Kiyozumi Kiriyama	29W-19L	Head-to-head
Hidemitsu Moriyasu	23W-24L	Head-to-head
Koji Tanigawa	12W-28L	Head-to-head
Kenji Kobayashi	16W-19L	Head-to-head
Bungo Fukusaki	18W-16L	Head-to-head
Kaishu Tanaka	21W-11L	Head-to-head

Head-to-head with other players →