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Duncan MMA

5 ★★★★★ 58 Google reviews · Muay thai gym in Kingsport, Tennessee

Free trial Beginners welcome Kids & teens Fitness classes

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
  • Beginner-friendly all levels welcome, including total beginners — you don't need to be fit or have any experience to start
  • Kids & youth classes kids and youth muay thai classes (ages 4–14) — built around discipline, focus, and confidence
  • Fitness & conditioning muay thai fitness and cardio classes — a serious workout you can do without ever having to spar
  • Sparring & clinch sparring and clinch sessions for members ready for controlled contact — always optional and coach-supervised
  • Today see hours ·
  • Website & schedule duncanmma.com — book classes and see the live schedule
  • Phone +1 423-408-8260

Hours

Monday 6–7 am, 5–8 pm
Tuesday 4:30–8 pm
Wednesday 6–7 am, 5–8 pm
Thursday 5–8 pm
Friday 4:30–8 pm
Saturday 10 am–1 pm
Sunday Closed

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 Duncan MMA, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🌱 Beginner Muay Thai 3 mentions

“I was a complete beginner when I came to Duncan and I have learned so much in this short time.”

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🧒 Kids Muay Thai 8 mentions

“Duncan MMA is by far the best Jujitsu program in the area, as of now we have only been to 2 sessions and he does great with the kids and also my teens.”

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💪 Women's Muay Thai

“We belonged to two gyms before we joined Duncan MMA and this was the only one I was comfortable joining as a woman.”

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Teen Muay Thai

“Duncan MMA is by far the best Jujitsu program in the area, as of now we have only been to 2 sessions and he does great with the kids and also my teens.”

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🛡️ Self-Defense 2 mentions

“Would highly recommend to any and all who are interested in self defense!”

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Other martial arts here

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

🦵 Kickboxing 2 mentions

“I have seen such positive change in my children since they started kickboxing.”

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🥋 Brazilian Jiu-Jitsu (BJJ) 7 mentions

“Being new to jiu jitsu, and wanting something for my family and I to do together, we came here as an invite from our friends at church and it has been such a great atmosphere.”

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

🏟️ MMA 8 mentions

“Duncan MMA is by far the best Jujitsu program in the area, as of now we have only been to 2 sessions and he does great with the kids and also my teens.”

Other gyms that also teach mma →

🎽 Karate

“Both my boys enjoy BJJ & Karate Kickboxing at Duncan MMA.”

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 58 Google reviews — in their own words.

🧑‍🏫 expert, authentic coaching 4 mentions

“The coaches have been so great to break it all down and make me feel comfortable when this was totally outside my comfy zone!”

🌱 welcoming to beginners 4 mentions

“I was a complete beginner when I came to Duncan and I have learned so much in this short time.”

🤝 no-ego, friendly gym 20 mentions

“The environment is clean and healthy, the participants are lovely, the gym is female friendly (I'm never the only girl in the class!”

📘 real technique & fundamentals 4 mentions

“They are patient, friendly, and good at teaching techniques no matter the experience level.”

🧼 clean, well-equipped gym 3 mentions

“The environment is clean and healthy, the participants are lovely, the gym is female friendly (I'm never the only girl in the class!”

💵 good value / fair pricing 2 mentions

“Duncan MMA also teaches the kids and adult class good morals and family plans are definitely very affordable compared to most!”

From the reviews

Duncan academy of martial arts has been such a great and inviting experience for my family and I. Being new to jiu jitsu, and wanting something for my family and I to do together, we came here as an invite from our friends at church and it has been such a great atmosphere. The instructors are great!

★★★★★ — Joseph, Feb 2023

When we moved here a few months ago, one of our biggest hopes was to find a Jiu-Jitsu school where our 6-year-old son could continue his training. He had been part of a great program before, and the bar was set very high — so we were a bit worried about finding a place that would match that experience.

★★★★★ — Anna, May 2025

I am a student here at the gym. I am a father of four, who was overweight and out of shape a little over six months ago. I took the first step in walking through the door and since then I haven’t looked Back. I started with the weight of 230lbs and am down to 195lbs.

★★★★★ — Ryan, May 2025

Duncan MMA is by far the best Jujitsu program in the area, as of now we have only been to 2 sessions and he does great with the kids and also my teens. They are very welcoming and patient with everyone.

★★★★★ — Steven, Jan 2026

Excerpts from public Google reviews. Read all 58 reviews →

New to muay thai? Start at Duncan MMA

Duncan MMA comes up as a beginner-friendly gym — noted on their own site. If you've never thrown a punch or a kick, that's exactly who a good beginners program is for. A few things worth knowing before your first week. First, you don't need to be fit to start — you get in shape by training, not before it, and coaches scale the conditioning to you. Second, you won't be thrown into sparring — reputable gyms build fundamentals (stance, footwork, and the basic strikes of the "art of eight limbs") for weeks before any contact, and sparring stays optional. Third, all levels really are welcome — ask about a dedicated beginners or fundamentals class time so your first session is alongside others who are also starting out. Most gyms are happy to let you watch or try a class first, so reach out before you commit.

See their beginner class info

Your first muay thai class at Duncan MMA

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 Duncan MMA

1133 N Eastman Rd, Kingsport, TN37664

Get directions Instagram

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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.