My Take
There's something quietly compelling about Masato Kumashiro's story — a kid who grew up in Kumakogen, a small mountain town tucked deep in Ehime Prefecture, and turned his whole life into baseball. Imabari Nishi High School is no joke as a baseball program, so just making the cut there says something about his early commitment. He's a 1989 baby, Aries energy, and at 175cm he was never going to be the guy scouts drool over on raw physical tools alone — which honestly makes you respect the grind more. What I find interesting is that he's now on the coaching side too, passing down whatever he figured out over the years on a diamond. That shift from player to teacher doesn't happen unless you genuinely love the game beyond your own career. Not a flashy name, not a household face, but the kind of baseball lifer who keeps the sport's foundation solid.
Overview
Masato Kumashiro is a Japanese baseball player and coach born on April 18, 1989, in Kumakogen, Ehime Prefecture. He attended Imabari Nishi High School in Ehime, a school known for its baseball program. Standing 175 cm tall, he has pursued a career both as a player and, in a coaching capacity, working to pass on his knowledge of the game to the next generation.
1. Profile
- Name (English)
- Masato Kumashiro
- Name (Japanese)
- 熊代聖人
- Reading
- くましろ まさと
- Born
- April 18, 1989 (age 37)
- Zodiac / Chinese zodiac
- Aries / Snake (Mi)
- Origin
- Kumakogen, Ehime Prefecture, Japan
- Blood type
- Private
- Height
- 175cm
- Agency
- Private
- Active years
- Unknown
- Occupation
- Baseball player / Baseball coach
2. Background
- Elementary school
- Private
- Junior high
- Private
- High school
- Ehime Prefectural Imabari Nishi High School
- University
- Private
- Debut
- Unknown
3. Relationships
- Spouse
- Private
- Children
- Private
- Parents
- Private
- Siblings
- Private
4. Personality
Motto
Private
6. Links
- Instagramhttps://www.instagram.com/kumashiro58/
- Wikipedia (Japanese)https://ja.wikipedia.org/wiki/%E7%86%8A%E4%BB%A3%E8%81%96%E4%BA%BA
7. About this entry
Tags
- 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.