Skip to main content
Boston Spring IO 2026 - Mat 09 (Day 1)

Boston Spring IO 2026 - Mat 09 (Day 1)

From IBJJF

May 21, 2026

Boston Spring IO 2026 (Mat #9) - May 9th

Fights from the 2026 Boston Spring International Open IBJJF Jiu-Jitsu Championship located at the Reggie Lewis Track and Athletic Center in Boston, MA.

Published by

IBJJF

More from IBJJF

View all

Report an Issue

Found outdated information, a broken link, or incorrect data? Let us know and we'll fix it.

0 characters (minimum 10)

We'll use this to follow up if needed

It's a mess, I know.

My goal is to build the most comprehensive BJJ encyclopedia anywhere — but good, accurate data is genuinely hard to come by. Records, gyms, belts and nationalities are pieced together from public and community sources, so some of it is incomplete, outdated, or flat-out wrong.

That's where you come in. If you spot something off, tell me and I'll fix it — every correction makes this better for everyone. This website wouldn't be possible without the community.