Koshiro Yamamuro

Koshiro Yamamuro doesn't have a flashy Wikipedia page packed with stats and trophies, and honestly that kind of understated profile says something in itself. A guy from Seya, Kanagawa — that quiet suburban corner of Yokohama — who made it all the way to Aoyama Gakuin University and kept swinging, kept grinding on the diamond. At 183cm he's got the build you'd expect, and there's something almost stubbornly earnest about a Cancer born in 1987 who just kept showing up to practice long after plenty of others drifted away. Baseball in Japan at the university level is no joke — the commitment alone is a statement. I don't know his career stats, and the public record is thin, but I've got a soft spot for athletes who clearly did the work without needing a spotlight to do it.

Koshiro Yamamuro is a Japanese baseball player born on July 14, 1987, in Seya Ward, Kanagawa Prefecture. He stands 183 cm tall and pursued his baseball career through Aoyama Gakuin University. Most personal and career details remain private or have not been publicly disclosed.

Name (English)

Koshiro Yamamuro

Name (Japanese)

山室公志郎

Reading

やまむろ こうしろう

Born

July 14, 1987 (age 39)

Zodiac / Chinese zodiac

Cancer / Rabbit (卯)

Origin

Seya Ward, Kanagawa Prefecture, Japan

Height

183cm

Occupation

Baseball player

University

Aoyama Gakuin University

Motto

Private

• Wikipedia (Japanese)https://ja.wikipedia.org/wiki/%E5%B1%B1%E5%AE%A4%E5%85%AC%E5%BF%97%E9%83%8E

Tags

• From Kanagawa Prefecture
• Baseball player

Last updated

2026-06-02

Facts are limited to publicly available information up to 2024; non-public or unconfirmed items are omitted. English text is machine-assisted (facts translated by Sonnet, "My Take" written by Opus 4.8). The Japanese page is the source of record.