Koshiro Hirata
As of 2026-10-12, Koshiro Hirata is ranked #540 of 688 active men in gi by The Grappling Index.
#540Gi rank
#919Overall rank
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<a href="https://grapplingindex.com/athletes/koshiro-hirata"><img src="https://grapplingindex.com/badge/koshiro-hirata.svg" alt="Koshiro Hirata — Grappling Index rank" height="76"></a>