Seonghyeon Joo
As of 2026-10-12, Seonghyeon Joo is ranked #158 of 688 active men in gi by The Grappling Index.
#158Gi rank
#251Overall rank
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<a href="https://grapplingindex.com/athletes/seonghyeon-joo"><img src="https://grapplingindex.com/badge/seonghyeon-joo.svg" alt="Seonghyeon Joo — Grappling Index rank" height="76"></a>