Rating › Ehoto Osogaguchi

Rating of Ehoto Osogaguchi

Player page　Last game 2026-10-29

Current rating1547

Peak1607
2025-01-16

Games56

By fiscal year

FY	Age	Annual rank	Rank	Junisen	Ryuo-sen	Rating	Deviation	Change	W	L	Win rate
FY2026	age 27	114th	4-dan	Class C2	Group 6	1547		-12	6	9	0.400
FY2025	age 26	114th	4-dan	Class C2	Group 6	1559	41.9	-24	15	18	0.455
FY2024	age 25	98th	4-dan		Group 6	1584		-15	4	4	0.500

Games by fiscal year

FY2026 results6W-9L

Win rate0.400

Rating1547

Annual rank114th

Rank/title at FY end / age4-dan / age 27

No	Date	Before	Change	After	Opponent (before game)	Tournaments	Side	Result
1	5/7	1549	-3	1546	Takuya Nishida6-dan / age 34 1809	Ryuo-sen Group 6 Ranking Round 5	Sente	●
2	6/11	1546	+8	1555	Hiromu Watanabe6-dan / age 37 1564	Junisen Class C2 Round 1	Sente	○
3	6/24	1555	-6	1548	Eiji Iijima8-dan / age 46 1626	Asahi Cup Prelim 1 Round 2	Sente	●
4	7/2	1548	+9	1557	Jodai Furui4-dan / age 21 1595	Kisei-sen Prelim 1 Round 1	Gote	○
5	7/2	1548	+10	1558	Shinya Satoh7-dan / age 48 1629	Kisei-sen Prelim 1 Round 2	Sente	○
6	7/16	1567	-7	1560	Shuji Muranaka7-dan / age 45 1620	Junisen Class C2 Round 2	Gote	●
7	8/6	1560	+13	1573	Kanta Masegi5-dan / age 28 1796	Junisen Class C2 Round 3	Gote	○
8	8/18	1573	-7	1566	Akira Nishio7-dan / age 46 1613	Kisei-sen Prelim 1 Round 3	Gote	●
9	8/27	1566	-6	1560	Taiki Yamakawa4-dan / age 28 1647	Junisen Class C2 Round 4	Sente	●
10	9/16	1560	+6	1566	Shuji Satoh8-dan / age 59 1483	Oi-sen Prelims Round 1	Gote	○
11	9/24	1566	-6	1560	Taiki Yamakawa4-dan / age 28 1661	Ryuo-sen Group 6 Promotion playoff Round 6	Gote	●
12	10/1	1560	-6	1555	Taiki Yamakawa4-dan / age 28 1666	Eio-sen 4-dan section Round 2	Sente	●
13	10/6	1555	-6	1549	Kouru Abe7-dan / age 31 1650	Oi-sen Prelims Round 2	Gote	●
14	10/16	1549	+9	1558	Ao Kokubo4-dan / age 21 1599	Oza-sen Prelim 1 Round 2	Sente	○
15	10/29	1558	-11	1547	Michio Takahashi9-dan / age 66 1429	Junisen Class C2 Round 6	Gote	●

FY2025 results15W-18L

Win rate0.455

Rating1559

Annual rank114th

Rank/title at FY end / age4-dan / age 26

No	Date	Before	Change	After	Opponent (before game)	Tournaments	Side	Result
1	5/1	1579	-8	1571	Yuta Komori5-dan / age 29 1598	Ryuo-sen Group 6 Ranking Round 5	Gote	●
2	5/22	1571	-11	1560	Michio Takahashi9-dan / age 65 1436	Kisei-sen Prelim 1 Round 1	Sente	●
3	6/19	1560	+10	1570	Kenshi Tokuda4-dan / age 27 1644	Junisen Class C2 Round 1	Sente	○
4	6/29	1570	-13	1558	古田龍生アマ 1348	Asahi Cup Prelim 1 Round 1	Sente	●
5	7/3	1558	-11	1547	Keiichi Sanada8-dan / age 52 1438	Junisen Class C2 Round 2	Gote	●
6	7/9	1547	+9	1556	内山あや 1574	Kakogawa Seiryu-sen Main Round 2	Gote	○
7	7/25	1556	+4	1560	Eisaku Tomioka9-dan / age 61 1362	Oi-sen Prelims Round 1	Sente	○
8	7/31	1560	-11	1549	Yoshiyuki Kubota7-dan / age 53 1435	Junisen Class C2 Round 3	Gote	●
9	8/6	1549	-4	1544	Ryuma Yoshiike4-dan / age 20 1713	Kakogawa Seiryu-sen Main Round 3	Sente	●
10	8/12	1544	-7	1538	Issei Takazaki7-dan / age 38 1597	Oi-sen Prelims Round 2	Sente	●
11	8/18	1538	+6	1544	Yoshiyuki Matsumoto7-dan / age 53 1469	Oza-sen Prelim 1 Round 1	Gote	○
12	8/28	1544	+10	1554	Yujirou Takahashi4-dan / age 26 1627	Junisen Class C2 Round 4	Sente	○
13	9/10	1554	-9	1545	Kota Kanai6-dan / age 39 1521	Oza-sen Prelim 1 Round 2	Sente	●
14	9/17	1545	+6	1551	Masakazu Kondoh7-dan / age 54 1441	Ginga-sen Prelims Round 1	Sente	○
15	9/17	1545	-4	1541	Masataka Goda9-dan / age 54 1755	Ginga-sen Prelims Final	Gote	●
16	9/22	1547	+11	1558	Reo Koyama4-dan / age 32 1706	Eio-sen 4-dan section Round 1	Sente	○
17	9/22	1547	+10	1557	Yujirou Takahashi4-dan / age 26 1626	Eio-sen 4-dan section Round 2	Sente	○
18	10/1	1568	-4	1565	Yusei Koga6-dan / age 24 1778	Ryuo-sen Group 6 Promotion playoff Round 6	Gote	●
19	10/16	1565	+5	1570	Tadao Kitajima7-dan / age 59 1425	Junisen Class C2 Round 5	Sente	○
20	11/6	1570	+7	1577	Kota Kanai6-dan / age 39 1534	Junisen Class C2 Round 6	Gote	○
21	11/21	1577	-4	1572	Ryuma Yoshiike4-dan / age 21 1750	Eio-sen 4-dan section Round 3	Gote	●
22	12/11	1572	+9	1582	Kouru Abe7-dan / age 31 1638	Junisen Class C2 Round 7	Gote	○
23	1/6	1582	+7	1589	西山朋佳 1521	Ryuo-sen Group 6 Ranking Round 2	Sente	○
24	1/15	1589	-5	1584	Satoshi Takano6-dan / age 32 1732	Junisen Class C2 Round 8	Sente	●
25	1/23	1584	-7	1576	Shiryu Katayama4-dan / age 21 1616	Kio-sen Prelims Round 1	Sente	●
26	1/29	1576	-9	1567	Yuya Saito4-dan / age 28 1514	Junisen Class C2 Round 9	Gote	●
27	2/4	1567	+5	1572	Hisashi Ogura8-dan / age 57 1422	Ryuo-sen Group 6 Ranking Round 3	Sente	○
28	2/10	1572	-6	1566	Kenta Miyajima4-dan / age 26 1675	Shinjin-o-sen Main Round 2	Sente	●
29	2/26	1566	+9	1575	Hiroki Iizuka8-dan / age 56 1593	NHK Cup Prelims Round 1	Gote	○
30	2/26	1566	-6	1560	Ayumu Matsuo8-dan / age 45 1632	NHK Cup Prelims Round 2	Gote	●
31	3/2	1568	+7	1575	Keiichi Sanada8-dan / age 53 1525	Ryuo-sen Group 6 Ranking Round 4	Gote	○
32	3/10	1575	-7	1568	Naoki Koyama4-dan / age 26 1624	Junisen Class C2 Round 10	Sente	●
33	3/16	1568	-9	1559	Keita Kadokura6-dan / age 38 1529	Osho-sen Prelim 1 Round 1	Sente	●

FY2024 results4W-4L

Win rate0.500

Rating1584

Annual rank98th

Rank/title at FY end / age4-dan / age 25

No	Date	Before	Change	After	Opponent (before game)	Tournaments	Side	Result
1	12/21	1599	+4	1602	荒田敏史アマ 1383	Ryuo-sen Group 6 Ranking Round 1	Sente	○
2	1/16	1602	+5	1607	Hideyuki Takano7-dan / age 52 1456	Ryuo-sen Group 6 Ranking Round 2	Gote	○
3	1/22	1607	-13	1594	Eisaku Tomioka9-dan / age 60 1380	Osho-sen Prelim 1 Round 1	Gote	●
4	1/25	1594	-11	1584	関矢寛之アマ 1473	Kio-sen Prelims Round 1	Gote	●
5	1/31	1584	-4	1580	Reo Okabe4-dan / age 25 1790	Shinjin-o-sen Main Round 2	Gote	●
6	2/13	1580	-6	1575	Hiroaki Yokoyama7-dan / age 44 1691	NHK Cup Prelims Round 1	Sente	●
7	2/18	1575	+6	1580	Akira Shima9-dan / age 61 1466	Ryuo-sen Group 6 Ranking Round 3	Gote	○
8	3/21	1580	+4	1584	Ryo Shimamoto6-dan / age 44 1369	Ryuo-sen Group 6 Ranking Round 4	Gote	○

Unofficial Elo rating calculated by this site from available game results (each fiscal year is shifted so that the average player is 1600). Up to FY1963 only Junisen games are included; from FY1964 all official games. Games without dates are ordered by estimated term and round.Method
How the deviation score is calculated: see here.