Seigi Tanaka

Seigi Tanaka carries one of the heaviest names in Japanese baseball. Written out, it reads as "justice," and he arrived in professional baseball in 2016 as a first-round pick of the Fukuoka SoftBank Hawks with the sort of hype that name almost invites. Born in Yokohama in 1994 and developed at Sōka University, he stood 186 centimetres and threw the kind of fastball that makes scouts lean forward. What interests me is not that beginning but everything that followed. The straight line from can't-miss prospect to established ace is the exception, not the rule, and Tanaka's path bent. Injuries and rough patches ate into the years when he was supposed to be dominating. He now pitches for the Hokkaido Nippon-Ham Fighters, which means the story kept going past the point where a lot of hyped arms quietly disappear. I find that more compelling than the draft night. Anyone can be brilliant when everything cooperates. Rebuilding yourself after the plan fails is the part that actually tells you who a pitcher is.

Name (English)

Seigi Tanaka

Name (Japanese)

田中正義

Reading

たなか せいぎ

Born

July 19, 1994 (age 32)

Zodiac / Chinese zodiac

Cancer / Dog

Origin

Yokohama, Kanagawa Prefecture, Japan

Height

186 cm

Occupation

baseball player

University

Sōka University

• Instagramhttps://www.instagram.com/tanaka_justice_baseball/
• Xhttps://x.com/Seigi_Tanaka
• Wikipedia (English)https://en.wikipedia.org/wiki/Seigi%20Tanaka
• Wikipedia (Japanese)https://ja.wikipedia.org/wiki/%E7%94%B0%E4%B8%AD%E6%AD%A3%E7%BE%A9
• Wikidatahttps://www.wikidata.org/wiki/Q27151308

Tags

• Kanagawa 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.