Masahiro Tateishi

Masahiro Tateishi is at the stage of a career where honesty matters more than commentary. Born in Hōfu, Yamaguchi in 2003, he came up through Takagawa Gakuen and continued playing baseball at Sōka University. That is genuinely most of what I can confirm, and I would rather say so than dress up thin information as insight. Still, the outline itself carries weight. Staying in competitive Japanese baseball from middle school through university means years of early mornings and a body shaped entirely around one game, in a system that quietly filters out almost everyone. Whether that becomes a professional career is not something I can predict, and anyone who claims otherwise is guessing. What I like about writing an entry like this one is that it is a record of a player before the world has decided who he is. If his name grows, this page will be the place to check what was true at the beginning — and if it doesn't, the years he put in still happened.

Name (English)

Masahiro Tateishi

Name (Japanese)

立石正広

Born

November 1, 2003 (age 22)

Zodiac / Chinese zodiac

Scorpio / Goat

Origin

Hōfu-shi, Yamaguchi Prefecture, Japan

Occupation

baseball player

University

Sōka University

• Instagramhttps://www.instagram.com/masa.20032019/
• Wikipedia (Japanese)https://ja.wikipedia.org/wiki/%E7%AB%8B%E7%9F%B3%E6%AD%A3%E5%BA%83
• Wikidatahttps://www.wikidata.org/wiki/Q136653077

Tags

• Yamaguchi Prefecture
• baseball player

Last updated

2026-08-07

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.