Brazilian Jiu Jitsu Academy

Dedicated to Excellence in Jiu Jitsu

Call 414-801-5524 for more information

Fluid Jiu-Jitsu--Kids-BJJ-Class

-Class every night at 7:00 pm
– Adult beginner curriculum Thursdays at 7:00 pm
– Kids kickboxing at 5:00 pm on Fridays
– for other class times

Free Trial Class

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Come to the Mixed Martial Arts Academy the Whole Family Can Enjoy

Whether you’re looking for self-defense classes for you or your kids or a way to increase your physical activity, you’ll find the classes and instructors you’re looking for at Fluid Jiu Jitsu. Owned by a 1st degree black belt, our academy located in Greenfield, WI (right next door to Old Country Buffet) is the perfect place for you or your child to learn self-defense techniques that will benefit you or them for a lifetime. Our Academy is offering your first class FREE to see if Fluid is right for you and your family. Call or email us today to enroll!

Kids’ Jiu Jitsu Class

Jiu jitsu training is more vigorous than many other martial arts due to its intense nature. Let our instructors teach your kids the proper way to participate in the demanding sport.

Adult Jiu Jitsu Class

Our academy specializes in jiu jitsu classes for adults. Get signed up today and receive a discounted rate if you’re a first responder, a veteran, or under the age of 25.

Muay Thai Class

Much like kickboxing, Muay Thai is the challenging but fun national sport of Thailand. Take on the challenge by participating in one of our classes today!

Kids’ Kickboxing Class

Give your kids the chance to channel their energy and build their physical and mental strength. Enroll your child into our kids’ kickboxing class now.

Fitness Classes at Fluid Jiu Jitsu

Fitness Classes

Take your workout and fitness routine to the next level with one of our fitness classes. Learn from our experienced fitness professionals and certified personal trainers!

Fluid Jiu Jitsu - Experienced Instructors

Experienced Instructors

You’ll learn from the best when you come to Fluid Jiu Jitsu. Our instructors are determined to provide top-notch training to each of their students.

Enroll Today - Fluid Jiu Jitsu - Greenfield WI

Enroll Today

Are you ready to sign up for a class? Call us at 414-801-5524 to enroll or complete our short online form and we’ll give you a call back with more information.


What People are Saying

“Awesome school!!!”

Professor is an awesome teacher and great school of colleagues!!! Really glad to have signed up for a membership

Maurice Minner

“Best Decision”

Joining Fluid was one of the best decisions of my life. I joined 3 years ago, and am one of the oldest team members. My friends thought I was crazy. But training at Fluid has made me stronger physically, mentally, and emotionally. It has helped me find a balance in my life. Professor Brenton is an expert at jiu jitsu and a fantastic teacher. My Fluid teammates have become great friends (not just training partners). Such a supportive welcoming atmosphere, I wouldn’t train anyplace else! “

Tracy Stuckert

“Incredible Instruction”

Perfectly suited for both casual and competitive training in the martial arts. Allows for growth in sport and practical self defense. I recommend this school to anyone that even shows a passing interest in the martial arts. The group of people are extremely friendly and welcoming as well.”

Chris Wunsch


“Great martial art and taught by a dedicated and knowledgeable person. Brent Fitzgerald”

Bill Fitzgerald

Get started with Fluid Jiu Jitsu!

Visit Us

Fluid Jiu Jitsu
4908 S. 74th St
Greenfield, WI 53220
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A BJJ Marriage Vlog-Podcast-Fluid Jiu Jitsu


11:00 am - 1:30 pm, 5:30 pm - 9:30 pm
6:00 am - 7:30 am, 5:30 pm - 9:30 pm
4:00 pm - 9:30 pm
6:00 am - 7:30 am, 5:30 pm - 9:30 pm
11:00 am - 1:30 pm, 4:30 pm - 9:00 pm
9:30 am - 1:30 pm
10:30 am - 1:30 pm

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Fluid Jiu Jitsu Podcast featuring Professor Brenton image