Players › Mamoru Hatakeyama

Mamoru Hatakeyama

Player No.	192
Rank	8-dan
Date of birth	Jun 3, 1969
Birthplace	Kanagawa
Teacher	Masayuki Moriyasu 7-dan

Junisen terms37

Career record215W-176L

Win rate0.550

Deviation score (FY2025)40.4

Best deviation score62.4
FY2005

Rating history and all games →

Junisen record

Term	Class	Rank	Record	Up/down	Deviation
85th term	Class C1	24	3W-2L
84th term	Class C1	15	3W-7L		40.4
83rd term	Class C1	3	5W-5L		42.3
82nd term	Class B2	27	3W-7L	Relegated	43.2
81st term	Class B2	8	2W-8L	Demerit	37.5
80th term	Class B2	7	6W-4L		41.8
79th term	Class B2	2	6W-4L		48.1
78th term	Class B1	11	3W-9L	Relegated	44.0
77th term	Class B1	13	5W-7L		49.7
76th term	Class B2	1	9W-1L	Promoted	53.2
75th term	Class B1	11	3W-9L	Relegated	52.5
74th term	Class B1	9	4W-8L		49.1
73rd term	Class B1	9	5W-7L		53.3
72nd term	Class B1	7	5W-7L		52.2
71st term	Class B1	11	6W-6L		54.3
70th term	Class B1	10	5W-7L		57.6
69th term	Class B1	11	5W-7L		51.1
68th term	Class B1	8	4W-8L		52.9
67th term	Class B1	6	6W-6L		57.3
66th term	Class B1	7	6W-6L		50.2
65th term	Class B1	12	7W-5L		57.4
64th term	Class B2	5	10W-0L	Promoted	62.4
63rd term	Class B2	7	6W-4L		50.5
62nd term	Class B2	2	6W-4L		55.3
61st term	Class B2	20	8W-2L		53.8
60th term	Class C1	8	8W-2L	Promoted	59.3
59th term	Class C1	3	6W-4L		55.2
58th term	Class C1	11	8W-2L		55.6
57th term	Class C1	6	6W-4L		60.4
56th term	Class C1	20	7W-3L		54.4
55th term	Class C2	7	9W-1L	Promoted	55.0
54th term	Class C2	11	7W-3L		56.4
53rd term	Class C2	19	7W-3L		51.9
52nd term	Class C2	14	6W-4L		59.4
51st term	Class C2	5	6W-4L		55.2
50th term	Class C2	23	8W-2L		53.1
49th term	Class C2	50	6W-4L		54.9

How the deviation score is calculated: see here.

Terms in each class

Class B1	13 terms
Class B2	9 terms
Class C1	8 terms
Class C2	7 terms

Promotion history

Sep 12, 2019	8-dan
Apr 1, 2006	7-dan
Apr 27, 1999	6-dan
Dec 24, 1993	5-dan
Oct 1, 1989	4-dan
1986	1-dan

Career win milestones

100 wins	Dec 24, 1993 Ryuo-sen
200 wins	Jul 28, 1998 Kisei-sen
300 wins	Feb 14, 2003 Junisen
400 wins	Apr 13, 2009 Osho-sen
500 wins	Jun 6, 2016 Kio-sen
600 wins	Jun 11, 2025 Tatsujin-sen

Best wins (highest-rated opponents)

Apr 17, 2006	Yoshiharu Habu 2028	Ryuo-sen
May 21, 2008	Yasumitsu Satoh 1941	Oza-sen
Nov 27, 2023	Masayuki Toyoshima 1922	Kisei-sen
Mar 14, 2008	Koichi Fukaura 1919	Junisen
Jul 27, 2001	Masataka Goda 1918	Ryuo-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

Keita Inoue	15W-18L	Head-to-head
Takashi Abe	12W-19L	Head-to-head
Masataka Sugimoto	15W-16L	Head-to-head
Takayuki Yamasaki	6W-22L	Head-to-head
Koji Tanigawa	6W-13L	Head-to-head
Toshiaki Kubo	5W-13L	Head-to-head
Kozo Arimori	11W-6L	Head-to-head
Kenji Kanzaki	8W-9L	Head-to-head
Hisashi Namekata	8W-9L	Head-to-head
Kazuki Kimura	6W-11L	Head-to-head
Masahiko Urano	14W-2L	Head-to-head
Hiroshi Naganuma	9W-7L	Head-to-head

Head-to-head with other players →