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Koshiro Yamamuro

山室公志郎 / やまむろ こうしろう

Japanese baseball player from Kanagawa

July 14, 1987 (age 38) ・ Seya Ward, Kanagawa Prefecture, Japan

  • From Kanagawa Prefecture
  • Baseball player

My Take

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.

Overview

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.

1. Profile

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 38)
Zodiac / Chinese zodiac
Cancer / Rabbit (卯)
Origin
Seya Ward, Kanagawa Prefecture, Japan
Blood type
Private
Height
183cm
Agency
Private
Active years
Unknown
Occupation
Baseball player

2. Background

Elementary school
Private
Junior high
Private
High school
Private
University
Aoyama Gakuin University
Debut
Unknown

3. Relationships

Spouse
Private
Children
Private
Parents
Private
Siblings
Private

4. Personality

Motto

Private

7. About this entry

Tags

  • From Kanagawa Prefecture
  • Baseball player
Last updated
2026-06-02

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