Seigo Nakayama

Seigo Nakayama is one of those guys who makes you stop and think about the quiet grind behind a pro baseball career. Born in 1999 in Utsunomiya — yeah, the city famous for gyoza — he came up through Seirantaito High School and then Hakuoh University before making it to the pros, which is a pretty deliberate, no-shortcuts path. He keeps basically everything about himself off the record — height, blood type, social media, all of it — so you can't really box him in, which I kind of respect. I find myself genuinely curious where he ends up; the low-profile types in Japanese baseball sometimes turn out to be the steadiest players on the roster, the ones you suddenly notice have been quietly producing for years.

This take was written by generative AI, one per person, from publicly reported facts (editorial policy). It is a reading of the record, not reporting.

Seigo Nakayama is a Japanese professional baseball player born on May 9, 1999, in Utsunomiya, Tochigi Prefecture. He attended Seirantaito High School before going on to study at Hakuoh University. Many personal details, including his agency and physical measurements, remain private.

Name (English)

Seigo Nakayama

Name (Japanese)

中山誠吾

Reading

なかやま せいご

Born

May 9, 1999 (age 27)

Origin

Utsunomiya, Tochigi Prefecture, Japan

Occupation

Professional Baseball Player

Zodiac / Chinese zodiac

Taurus / Rabbit

High school

Seirantaito High School

University

Hakuoh University

• Wikipedia (Japanese)https://ja.wikipedia.org/wiki/%E4%B8%AD%E5%B1%B1%E8%AA%A0%E5%90%BE
• Wikidatahttps://www.wikidata.org/wiki/Q110403122

Tags

• From Tochigi Prefecture
• Professional Baseball Player

Last updated

September 18, 2026

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.