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United Martial Arts Center

5 ★★★★★ 25 Google reviews · Muay thai gym in Centennial, Colorado

Free trial Kids & teens Fight team

Plan your first class

  • Free trial or intro class most gyms welcome new members with a free trial or intro class — check their site or give them a call to book your first session
  • Kids & youth classes kids and youth muay thai classes (ages 3–6) — built around discipline, focus, and confidence
  • Fight team a competition team for members who want to test themselves as amateur fighters
  • Today see hours ·
  • Website & schedule kicksrus.com — book classes and see the live schedule
  • Phone (303) 783-9632

Hours

Monday 3–7 PM
Tuesday 3–7 PM
Wednesday 3–7 PM
Thursday 3–7 PM
Friday 5:30–7 PM
Saturday 8:30 AM–1 PM
Sunday 9:30–11 AM

Hours shift for holidays, seminars, and open-gym times — worth a quick check before a special trip.

The classes they run

Muay thai classes on the schedule at United Martial Arts Center, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids Muay Thai 14 mentions

“As a newcomer to a group that seems to have been attending for a while, they have been really accepting and patient with the "new kid" on the block.”

All gyms that run kids muay thai →

🛡️ Self-Defense 2 mentions

“Highly recommend for anyone looking to learn practical self-defense techniques and get a great workout in as well.”

All gyms that run self-defense →

Other martial arts here

Muay thai gyms are usually multi-discipline. Here's what else members mention training under the same roof at United Martial Arts Center — mined from their reviews and the gym's own info.

🦵 Kickboxing 2 mentions

“United Marshall Arts and Fitness is the best marshall arts and kick boxing studio I've ever visited.”

Other gyms that also teach kickboxing →

🥊 Boxing 2 mentions

“United Marshall Arts and Fitness is the best marshall arts and kick boxing studio I've ever visited.”

Other gyms that also teach boxing →

🥋 Brazilian Jiu-Jitsu (BJJ)

“Perfect place to begin your journey into Striking or Grappling.”

Other gyms that also teach brazilian jiu-jitsu (bjj) →

🎽 Karate 2 mentions

“UMAC is the place you want to take your kids for karate!”

Other gyms that also teach karate →

Disciplines are mined from reviews and the gym's own info — they show what members have trained, not a formal class guarantee. If you specifically want BJJ, boxing, or MMA alongside muay thai, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 25 Google reviews — in their own words.

🌱 welcoming to beginners 3 mentions

“Very welcoming, informative and skilled coaches, fairly priced programs and open and clean facility.”

🤝 no-ego, friendly gym 9 mentions

“Very welcoming, informative and skilled coaches, fairly priced programs and open and clean facility.”

📘 real technique & fundamentals 5 mentions

“The instructors (Mark and Johnny) are thorough on technique and challenge me to focus on fundamentals and improve my form.”

🧒 strong kids program 2 mentions

“My son has learned confidence, teamwork, fitness, and developed his mind and body together at UMAC.”

🧠 builds confidence & discipline 9 mentions

“They are very empathetic and were able to get our son (who has a hard time focusing) to enjoy karate in such a way that he is very focused and looks forward to each lesson.”

From the reviews

United Marshall Arts and Fitness is the best marshall arts and kick boxing studio I've ever visited. Theresa, Byrne, the owner, takes great care to meet students where they are in their pursuit of fitness and marshal arts.

★★★★★ — Kimbirly, Sep 2014

Have been attending their JKD classes for a number of weeks now and am loving it. The instructors (Mark and Johnny) are thorough on technique and challenge me to focus on fundamentals and improve my form.

★★★★★ — Paul, Jan 2025

Kicks Martial Arts is the best place to bring your child to learn Taekwondo and build leadership skills. The classes are interactive, kids are having fun, and build confidence with each belt level. Curriculum is well balanced and builds on gradually.

★★★★★ — Desi, Feb 2024

JKD/Kali at UMAC is taught by certified Guro Dan Inosanto instructors and includes many combat disciplines. The instruction is excellent and the classes fly by. I could not recommend these classes more highly, a solid 5.

★★★★★ — John, Feb 2024

Excerpts from public Google reviews. Read all 25 reviews →

Your first muay thai class at United Martial Arts Center

Nervous about walking into a muay thai gym for the first time? Almost everyone is, and good coaches expect beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling the basics on pads and bags — not fighting. Rest whenever you need to; no one will bat an eye. What to wear: shorts or athletic wear and a t-shirt; you'll train barefoot on the mats. What to bring: water and hand wraps if you have them — many gyms lend gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves, wraps, a mouthguard, and shin guards. Sparring is optional and comes later, once your fundamentals are solid. Arrive 10–15 minutes early to sign a waiver and meet the coach. It gets easier fast — most people feel far more at home by their third class.

Muay thai is a contact sport. Ease in, listen to your coaches, and if you have any injuries or health concerns, mention them before class and check with a doctor if you're unsure.

Where to find United Martial Arts Center

2450 E Arapahoe Rd Ste A-2450, Centennial, CO80122

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Listing verified July 2026 from public business records and member reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.