Masahiro Doi

Masahiro Doi, born December 8, 1943, in Kashiwara, Osaka Prefecture, entered Nippon Professional Baseball with the Kintetsu Buffaloes in 1962 — as a teenager straight out of high school. He stayed with Kintetsu through 1974, then moved to the franchise that cycled through the names Taiheiyo Club, Crown Lighter, and finally Seibu, retiring in 1981. That's roughly two decades of top-flight professional hitting, which is the part I keep coming back to. Careers that long aren't built on talent alone; they require surviving injuries, managerial changes, and in his case an organization that literally kept changing its identity around him. It's also worth noting what he didn't get. Kintetsu in that era was not a winning club, so much of his prime was spent producing for teams that weren't going anywhere. A 181 cm outfielder who arrived as a teenage phenom and was still in the lineup nineteen seasons later — the longevity impresses me more than any single number would.

Name (English)

Masahiro Doi

Name (Japanese)

土井正博

Reading

どい まさひろ

Born

December 8, 1943 (age 82)

Zodiac / Chinese zodiac

Sagittarius / Goat

Origin

Kashiwara, Osaka Prefecture, Japan

Height

181 cm

Occupation

baseball player

• Wikipedia (English)https://en.wikipedia.org/wiki/Masahiro%20Doi
• Wikipedia (Japanese)https://ja.wikipedia.org/wiki/%E5%9C%9F%E4%BA%95%E6%AD%A3%E5%8D%9A
• Wikidatahttps://www.wikidata.org/wiki/Q5357314

Tags

• Osaka 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.