Players › Yoshiyuki Kubota

Yoshiyuki Kubota

Player No.	210
Rank	7-dan
Date of birth	May 18, 1972
Birthplace	Ibaraki
Teacher	Motoji Hanamura 9-dan (deceased)

Junisen terms33

Career record148W-177L

Win rate0.455

Deviation score (FY2025)35.8

Best deviation score59.8
FY2010

Rating history and all games →

Junisen record

Term	Class	Rank	Record	Up/down	Deviation
85th term	Class C2	47	2W-3L
84th term	Class C2	3	2W-8L	Demerit	35.8
83rd term	Class C1	33	3W-7L	Relegated	31.3
82nd term	Class C1	17	2W-8L	Demerit	40.6
81st term	Class C1	2	4W-6L		37.2
80th term	Class B2	19	0W-10L	Relegated	45.0
79th term	Class B2	23	4W-6L		46.9
78th term	Class B2	11	3W-7L	Demerit	41.3
77th term	Class B2	10	6W-4L		49.6
76th term	Class B2	11	5W-5L	Demerit cleared	45.4
75th term	Class B2	18	5W-5L		50.1
74th term	Class B2	18	4W-6L		43.6
73rd term	Class B2	23	4W-6L		46.5
72nd term	Class B2	5	3W-7L	Demerit	36.1
71st term	Class B2	15	7W-3L		52.2
70th term	Class B2	14	5W-5L		45.7
69th term	Class B2	19	5W-5L		59.8
68th term	Class B2	22	4W-6L		54.1
67th term	Class C1	3	8W-2L	Promoted	51.2
66th term	Class C1	8	7W-3L		48.4
65th term	Class C1	7	6W-4L		56.4
64th term	Class C1	27	7W-3L	Demerit cleared	51.8
63rd term	Class C1	25	3W-7L	Demerit	52.5
62nd term	Class C1	25	3W-7L		46.5
61st term	Class C2	35	9W-1L	Promoted	52.8
60th term	Class C2	30	3W-7L	Demerit	34.7
59th term	Class C2	39	4W-6L		32.3
58th term	Class C2	29	1W-9L	Demerit	21.9
57th term	Class C2	15	4W-6L		47.9
56th term	Class C2	23	6W-4L		50.1
55th term	Class C2	12	5W-5L		54.4
54th term	Class C2	6	6W-4L		57.1
53rd term	Class C2	47	8W-2L		55.7

How the deviation score is calculated: see here.

Terms in each class

Class B2	13 terms
Class C1	9 terms
Class C2	11 terms

Promotion history

Jun 1, 2016	7-dan
Jan 22, 2007	6-dan
Aug 1, 1998	5-dan
Apr 1, 1994	4-dan
1988	1-dan

Career win milestones

100 wins	Jun 23, 1998 Ryuo-sen
200 wins	Jun 6, 2006 Junisen
300 wins	Sep 29, 2011 Kisei-sen
400 wins	Mar 30, 2020 Ryuo-sen

Best wins (highest-rated opponents)

Mar 7, 2006	Akira Watanabe 1958	Junisen
Aug 27, 2006	Tadahisa Maruyama 1932	NHK Cup
Oct 18, 2010	Takayuki Yamasaki 1902	Kio-sen
Dec 13, 2014	Yasumitsu Satoh 1892	Asahi Cup
Oct 1, 2002	Toshiaki Kubo 1868	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

Keiichi Sanada	5W-9L	Head-to-head
Hiroki Iizuka	3W-11L	Head-to-head
Kosuke Tamura	3W-10L	Head-to-head
Masamitsu Tachi	7W-5L	Head-to-head
Isao Nakata	8W-4L	Head-to-head
Daisuke Nakagawa	6W-6L	Head-to-head
Manabu Senzaki	3W-9L	Head-to-head
Takahiro Toyokawa	5W-7L	Head-to-head
Tadao Kitajima	6W-6L	Head-to-head
Ichiro Hiura	6W-5L	Head-to-head
Takeshi Fujii	5W-6L	Head-to-head
Hirotaka Nozuki	5W-6L	Head-to-head

Head-to-head with other players →