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Players › Reo Koyama

Reo Koyama

Player No.335
Rank4-dan
Date of birthJul 2, 1993
BirthplaceIwate
TeacherTadao Kitajima 7-dan
Junisen terms2
Career record9W-6L
Win rate0.600
Deviation score (FY2025)58.4
Best deviation score58.4
FY2025

Rating history and all games →

Junisen record

TermClassRankRecordUp/downDeviation
85th termClass C2172W-3L
84th termClass C2527W-3L58.4

How the deviation score is calculated: see here.

Terms in each class

Class C22 terms

Promotion history

Apr 1, 20234-dan

Best wins (highest-rated opponents)

Feb 7, 2025Wataru Yashiro 1837Osho-sen
Feb 10, 2026Wataru Yashiro 1798NHK Cup
Aug 21, 2025Hirotaka Kajiura 1774Junisen
Dec 9, 2022Shota Chida 1774Asahi Cup
Apr 10, 2025Mirai Aoshima 1773Kio-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

Reo Okabe1W-4LHead-to-head
Ryuma Yoshiike0W-5LHead-to-head
Naohiro Ishida2W-2LHead-to-head
Masaki Izumi1W-2LHead-to-head
Kazuharu Shoshi3W-0LHead-to-head
Takuma Oikawa3W-0LHead-to-head
Yuichi Tanaka3W-0LHead-to-head
Shinichi Satoh2W-1LHead-to-head
Wataru Yashiro2W-1LHead-to-head
Tatsuya Sanmaido0W-3LHead-to-head
Junpei Ide2W-1LHead-to-head
Hiroki Taniai2W-1LHead-to-head

Head-to-head with other players →