Mezger Martial Arts at Hidden Gym · Richardson & North Dallas
Real Martial Arts.Taught by SomeoneWho Did It.
Muay Thai, Boxing, Brazilian Jiu-Jitsu, Wrestling, and Kids programs led by Guy Mezger and his black-belt coaching staff, inside Hidden Gym in Richardson and North Dallas.
- ■30+ Years Coaching
- ■4.9★ from 580+ Reviews
- ■All Levels · No Sparring Required
- ■Ages 5 to Adult
- ■2 North Texas Locations
Watch
Meet the
Mezger Program.
Richardson training footage and archival competition footage from Guy's career — what the program is, who teaches it, and what your first weeks look like. About two and a half minutes.
Program Finder
What are you here for?
The Philosophy
A Fighter's Gym.
Built for Everyone.
Guy Mezger fought the best in the world when the sport was being invented — Ultimate Fighting Champion, three times crowned King of Pancrase in Japan, six world titles across four full-contact sports. He's spent the 30 years since teaching North Texas the way he wishes he'd been taught: technique before toughness, patience before pressure, and a room where the newest beginner is protected by the most experienced hand.
Mezger Martial Arts is the martial arts program at Hidden Gym. Your membership is a Hidden Gym membership, which includes full access to the gym floor, strength equipment, and open mat.
Technique Over Ego
Nobody here has anything to prove. The best training rooms in the world are the calmest ones — that's how Guy trained with world champions, and it's how this gym runs. Leave the ego in the parking lot and you'll learn twice as fast.
Safety First, Always
No one is forced to spar. Not on day one, not ever. Contact is a choice you make when you're ready — and most members never make it, and get world-class training anyway. Thirty years, one rule: the gym is where you get better, not hurt.
Respect On and Off the Mat
Bow to the room's standards: partners protected, beginners welcomed, kids held to the same code as adults. Martial arts without respect is just violence with a schedule. That's not what we build here.
Programs
Pick Your Discipline
Muay Thai / Kickboxing
All levels · Ages 13+
Learn the art of eight limbs — punches, kicks, knees, and elbows — through pad work and partner drills. Every class builds real conditioning. No experience needed, no sparring required. Guy has coached world-class strikers for three decades; beginners get the same technique, at their pace.
Book a Free Trial
Boxing
All levels · Ages 13+
Classical boxing and our Combat Boxing track: footwork, head movement, combinations, and ring craft taught with the same detail Guy used preparing for world-level competition. Great cardio, sharper reflexes, zero pressure to compete.
Book a Free Trial
Brazilian Jiu-Jitsu
All levels · Gi & No-Gi · Ages 13+
Grappling that lets a smaller person control and submit a bigger one through leverage and position. Gi and no-gi classes, black-belt instruction, and a mat culture built on technique over ego. The single best martial art for real self-defense on the ground.
Book a Free Trial
Wrestling
All levels · Ages 13+
Takedowns, top control, and the conditioning that made wrestling the most successful base in MMA. Taught for adults who never wrestled in school — and for grapplers who want to stop getting taken down.
Book a Free Trial
MMA / Combat Sports
Intermediate — coach approval · Ages 16+
Where striking meets grappling. Integrated MMA training built on Guy's own career blueprint — Pancrase, UFC, PRIDE — for students with fundamentals in at least one discipline who want to put the pieces together. Competition is available, never required.
Book a Free Trial
Kids Combat Sports (7+)
Beginner to advanced · Ages 7–14
Striking, grappling, and discipline for ages 7 and up — structured classes where kids earn progress, learn to focus, and build real confidence. Parents watch every class. Bullyproofing without teaching kids to be bullies.
Book a Free Trial
Lion Cubs (Ages 5–6)
Introductory · Ages 5–6
A first martial arts experience for 5 and 6 year olds: balance, coordination, listening skills, and mat confidence taught through structured games by coaches who love working with little ones. Short classes, big smiles, real foundations.
Book a Free Trial
Private Lessons
All levels · Ages All ages
One-on-one coaching with Guy or his senior staff. The fastest way to build technique, fix a specific problem, or train on your own schedule. Available in every discipline at both locations. Tell us your goal — we'll match you with the right coach.
Book a Free TrialWhy Train Here
Not a Franchise. A Lineage.
Coached by a former world champion
Not a weekend-certified franchise instructor. Guy competed against the best on earth, and his coaches teach his system.
Real fitness, built in
Conditioning, strength, and mobility are woven into every class — you get in shape by learning something worth knowing.
Practical self-defense
Distance, control, and composure under pressure. Skills that work because they've been tested where it matters.
Confidence and discipline
The kind that comes from earned skill — for adults under stress and kids finding their footing.
A serious, kind community
People who take training seriously and treat each other well. The two are connected.
Full Hidden Gym access included
One membership covers unlimited classes plus the whole gym floor, strength equipment, and open mat.
Your First Class
What to Expect
- 1
Book your free trial through Hidden Gym — takes two minutes.
- 2
Arrive 15 minutes early, sign the waiver, meet the front desk. (read the waiver)
- 3
Wear athletic clothes. Gloves and pads are provided for trials.
- 4
A coach walks you through warm-up, fundamentals, and drills at your level.
- 5
No sparring on day one. Ever.
- 6
Leave with a plan — and a membership offer from Hidden Gym.
Schedule Preview
This Week on the Mats
Official Hidden Gym schedule (v9.28.2026). Level 2 & 3 classes require coach approval — trial guests join Level 1 / fundamentals classes.
Location
Discipline
Day
Level
Age Group
Membership
One Membership. The Whole Gym.
Membership is handled by Hidden Gym and includes unlimited martial arts classes plus full facility access. Current offers below — every button takes you to Hidden Gym's signup.
Free Trial Class
Your first class is free at either location. No card, no commitment — just show up ready to train.
Includes gloves & pads · Any fundamentals class
Book Free TrialMonthly Unlimited
Unlimited martial arts classes plus full Hidden Gym access — gym floor, strength equipment, and open mat.
Current rates at Hidden Gym — inquire below
Join at Hidden GymKids Membership
Kids Combat Sports (7+) or Lion Cubs (5–6), with coach-tracked progression and family-friendly scheduling.
Current rates at Hidden Gym — inquire below
Enroll Your KidPrivate Lesson Packs
One-on-one sessions with Guy or senior coaches. Tell us your goal and we'll match you with the right coach.
Rates vary by coach — inquire
InquireReviews
580+ People Said It Better
"Hidden Gym is the ultimate destination for anyone serious about boxing, kickboxing, or MMA. The trainers and coaches are top-notch, boasting impressive credentials and extensive experience."
Google review · Richardson
"Amazing classes for both jiu jitsu and thai boxing. The coaches are great and have several competing champions, and the head coach is a former UFC champion. Everyone is very wholesome and welcoming. I came in off the street and found it very easy to jump in and start training for the first time in my mid 30s."
Google review · Richardson
"Guy is a pro athlete, pro fighter and passionate teacher! My son works with him, and every minute is a valuable lesson! He explains everything he does, he makes workouts age appropriate. Highly recommend him, and his classes!"
Google review · Richardson
Real excerpts from public Google reviews. Read them all on Google
The Coaches
Learn From People Who Lived It
Locations
Two Gyms. One Standard.
Mezger Martial Arts at Hidden Gym Richardson
235 N Central Expy, Richardson, TX 75080
Mon–Fri 6 AM–10 PM · Sat 7 AM–8 PM · Sun 8 AM–8 PM
Free surface lot directly in front of the building.
Programs: Muay Thai / Kickboxing · Boxing · Brazilian Jiu-Jitsu · Wrestling · MMA / Combat Sports · Kids Combat Sports · Lion Cubs · Private Lessons
★ 4.9 from 461 Google reviews
Mezger Martial Arts at Hidden Gym North Dallas
17390 Preston Rd, Ste 360, Dallas, TX 75252
Mon–Fri 5 AM–10 PM · Sat 7 AM–8 PM · Sun 8 AM–8 PM
Free parking in the Preston Road shopping center lot.
Programs: Muay Thai / Kickboxing · Boxing · Brazilian Jiu-Jitsu · MMA / Combat Sports · Kids Combat Sports · Private Lessons
★ 5.0 from 102 Google reviews