The countdown is officially on.

On September 19, the Jeff Curran Invitational returns to The MAC in Crystal Lake, Illinois for our biggest night yet:

JCI 4: A NIGHT OF CHAMPIONS

Six championships will be decided in one night, alongside more than 20 submission-only superfights featuring elite jiu-jitsu athletes.

No points. No advantages. Submission-only jiu-jitsu.

SIX JCI CHAMPIONSHIPS

LIGHTWEIGHT CHAMPIONSHIP

Kyle Perkins vs. Alex Seaver

HEAVYWEIGHT CHAMPIONSHIP

Justin Andrews vs. Colton Folliard

FEATHERWEIGHT CHAMPIONSHIP

Raphael Ferreira vs. Mando Gutierrez

FLYWEIGHT CHAMPIONSHIP

Tayla Meredith vs. Ashley Yoder

BANTAMWEIGHT CHAMPIONSHIP

Diehl vs. Watanabe

MIDDLEWEIGHT CHAMPIONSHIP

Jeff Serafin vs. Mutter

And that’s just the championship card.

JCI 4 will feature 20+ additional submission-only superfights, bringing athletes together for an entire night of high-level Brazilian Jiu-Jitsu.

Doors Open: 4:00 PM Matches Begin: 6:00 PM

The MAC 1310 Ridgefield Rd. Crystal Lake, IL

WATCH JIU-JITSU LIVE

JCI was created to give athletes a platform, showcase exciting submission-focused jiu-jitsu, and put the competitors first.

If you’ve joined us for an XFO, attended one of the first three JCIs, traveled with us for a Big Frog BJJ Retreat, or followed Jeff “Big Frog” Curran throughout the years, we want you there for this one.

JCI 4 tickets are on sale NOW.

And when you purchase your tickets, don’t forget to select the athlete you’re coming to support at checkout.

A portion of every qualifying ticket sold goes directly back to that athlete.

Your ticket doesn’t just get you in the building. It supports the athletes stepping onto the JCI mats.

GET YOUR TICKETS

Grab your teammates. Bring your family. Support your athlete.

Come experience submission-only jiu-jitsu the way it was meant to be experienced:

LIVE.

September 19, 2026

JCI 4: A Night of Champions

ATHLETES FIRST. ALWAYS.

Jeff Curran Invitational Big Frog Nation BigFrogBJJ.com