Free Trial Class. No Experience.No Uniform. No Commitment.Just Show Up.
Brazilian Jiu-Jitsu classes for adults in Keller, TX — no experience required. Just show up ready to learn, sweat, and surprise yourself.
Classes for all levels — complete beginners welcome
Real self-defense you can actually use
Build strength, endurance, and mental toughness
Certified Checkmat academy — world-class instruction in Keller, TX
We'll reach out within minutes to get you scheduled.
No experience needed. No long-term commitment. Just one free class.
CheckMat JRoots Academy
This Isn't Just a Workout.It's a Complete Lifestyle Upgrade.
People who start BJJ don't just get fitter. They get sharper, more confident, and part of something that genuinely matters.
ADULT BJJ & SELF-DEFENSE PROGRAM
Real Self-Defense – Techniques that actually work when it matters, regardless of your size or strength.
Sharper Mind, Stronger Body — Better focus, discipline, and physical conditioning that carries into every area of your life.
Real Self-Defense Skills
BJJ is proven to work in real situations, regardless of your size or strength. You'll learn how to handle yourself — and that confidence changes how you move through the world.
The Body Transformation Is Real
BJJ works muscles you didn't know you had. Strength, flexibility, cardio — it all improves, without ever feeling like punishment.
Mental Toughness Built Session by Session
Every class teaches you how to stay calm under pressure. That carries into every area of your life — work, relationships, everything.
A Workout That Doesn't Feel Like Work
Rolling on the mat burns more calories than most gym sessions — but you're too focused on solving the puzzle in front of you to notice.
A Community That Shows Up for You
The people you train with become your people. JRoots is the kind of gym where everyone remembers your name and cheers for your progress.
A Clear Path Forward
From white belt to black belt, you always know where you stand and what to work on next. Progress is visible, earned, and deeply satisfying.
Meet Lukas Aguiar
Checkmat Black Belt · Head Instructor, JRoots Keller
Lukas Aguiar started training Jiu-Jitsu at age 7, inspired by his older brother — a world-class competitor who taught him that a champion's mindset shapes every area of life.
By blue belt, Lukas had already claimed double gold at the 2015 IBJJF World Championship — winning both his weight division and the absolute. He went on to add Pan-American and European titles to his record, competing at the highest levels of the sport.
But his greatest achievement isn't on the medal stand. Graciemag — the world's most respected BJJ publication — featured Professor Lukas for his philosophy of teaching: "I form people before I form champions. Character, discipline, and respect are non-negotiable."
At JRoots Keller, he brings that same standard to every class — with patience, structure, and genuine care for every child on the mat.
People before champions — character, discipline, and respect come first. Always.
Ego-free environment — everyone belongs here. From your very first class to black belt, JRoots is a place where beginners are respected, growth is celebrated, and no one is left behind.
Every child gets individual attention — Lukas reads each person's pace, potential, and goals. Whether your child needs patience or you need a push, the instruction adapts to you — not the other way around.
Thinking About Starting?Here's What Most People Wonder.
I've never done any martial art. Is that okay?
It's actually the best time to start. You have no bad habits to unlearn. Our beginner program is designed specifically for adults starting from zero — and Professor Lukas is known for making that transition feel natural and welcoming.
I'm not in good shape / I'm not athletic enough.
BJJ is a martial art built for people who aren't the biggest or strongest in the room. Technique beats strength — always. You will get fit through training, not before it. Show up as you are.
I'm worried about getting hurt.
Safety is the first thing Professor Lukas builds into every class. Beginners train with controlled partners and there's zero ego culture at JRoots — you're here to learn, not to survive.
I don't have time — I have a busy schedule.
We offer classes at multiple times throughout the week, including early mornings and evenings. Most members train 2–3x per week and see real progress within weeks.
What if I try it and it's not for me?
That's why we offer the free trial. One class. No commitment. If you don't love it, you walk away with nothing lost. But most people who try it come back for the second class before we even have to ask.
Weekly Schedule
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Find Out What’s Waiting for You!
The Best Time to Start Was Yesterday.The Second Best Time Is Right Now.
Every week you wait is a week behind on the mat.