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Undisputed

4.4 ★★★★☆ 60 Google reviews · Muay thai gym in San Diego, California

Muay Thai gym Authentic Thai Kids & teens Fight team

Authentic Thai — reviews and the gym's own info point to coaching rooted in Thailand's muay thai tradition. If lineage matters to you, ask where the coaches trained and about their kru.

Gym offering boxing and muay thai classes for all ages, plus sanctioned fights.

Plan your first class

  • Kids & youth classes kids and youth muay thai classes — built around discipline, focus, and confidence
  • Sparring & clinch sparring and clinch sessions for members ready for controlled contact — always optional and coach-supervised
  • Fight team a competition team for members who want to test themselves as amateur fighters
  • Today see hours ·
  • Website & schedule undisputedusa.com — book classes and see the live schedule
  • Phone (619) 299-2699

Hours

Monday 8 AM–9 PM
Tuesday 8 AM–9 PM
Wednesday 8 AM–9 PM
Thursday 8 AM–9 PM
Friday 8 AM–8 PM
Saturday 9 AM–1 PM
Sunday 8:30 AM–2:30 PM

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

🧒 Kids Muay Thai 9 mentions

“Great boxing, muay thai program especially for kids!”

All gyms that run kids muay thai →

🥊 Sparring

“Not food just drink and working out with sparring official ring”

All gyms that run sparring →

Other martial arts here

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

🥊 Boxing 3 mentions

“Great boxing, muay thai program especially for kids!”

Other gyms that also teach boxing →

🥋 Brazilian Jiu-Jitsu (BJJ)

“The weekend kids may program is also very good way to get some wrestling, BJJ training.”

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

🏟️ MMA

“A jujitsu / mixed martial Arts gym.”

Other gyms that also teach mma →

🤸 Wrestling

“The weekend kids may program is also very good way to get some wrestling, BJJ training.”

Other gyms that also teach wrestling →

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 60 Google reviews — in their own words.

🧑‍🏫 expert, authentic coaching 2 mentions

“coaches are amazing and they always push you to your limits staff are kind and always friendly and helpful.”

🤝 no-ego, friendly gym 12 mentions

“coaches are amazing and they always push you to your limits staff are kind and always friendly and helpful.”

📘 real technique & fundamentals 4 mentions
🥊 legit sparring & fight team 4 mentions

“Not food just drink and working out with sparring official ring”

From the reviews

My daughter stated going here about 7 months ago, she dint have much of a passion for anything, so we decided to give box a try, she was nervous at first but she got the hang of it. Now she gets her stuff ready for practice a day before.

★★★★★ — Mlc, Feb 2022

Good gym! Good peeps ! They my family ! Dave, the owner has a heart of gold and the coaches care for everyone!!

★★★★★ — Etaj1232, Sep 2020

Undisputed been family owned and been making others feel welcomed like family. I highly recommend undisputed to really have a great work out and getting in shape . coaches really take there time in teaching each an individual. That's what makes it awesome.

★★★★★ — Lizeth, Nov 2019

Great boxing, muay thai program especially for kids! Been coming here for a year and highly recommend it. The weekend kids may program is also very good way to get some wrestling, BJJ training.

★★★★★ — Patrick, Jan 2023

Excerpts from public Google reviews. Read all 60 reviews →

Your first muay thai class at Undisputed

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 Undisputed

4151 University Ave, San Diego, CA92105

Get directions

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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.