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OMNI Martial Arts & Fitness

5 ★★★★★ 119 Google reviews · Kickboxing gym in Boulder, Colorado

Kickboxing gym Free trial Beginners welcome Kids & teens Cardio kickboxing Competition 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
  • Beginner-friendly all fitness levels welcome, including total beginners — no experience needed, and you get in shape by training, not before
  • Cardio kickboxing classes high-energy cardio kickboxing on the bags and pads — a fun, sweaty workout built for fitness and weight loss, at your own pace
  • Kids & teen classes kids and teen kickboxing classes (ages 4–13) — built around confidence, focus, and fun
  • Sparring sparring and partner work for members who want it — always optional, eased in gradually, with the coach controlling the contact
  • Competition team a competition team for members who want to test themselves in the ring — amateur kickboxing, muay thai, or K-1
  • Today see hours ·
  • Website & schedule omniboulder.com — book classes and see the live schedule
  • Phone +1 303-402-9460

Hours

Monday 12–1 pm, 4–7:30 pm
Tuesday 12–1 pm, 4–7:30 pm
Wednesday 12–1 pm, 4–7:30 pm
Thursday 12–1 pm, 4–7:30 pm
Friday Closed
Saturday 9 am–12 pm
Sunday Closed

Hours shift for holidays and class-schedule changes — worth a quick check before a special trip.

The classes they run

Kickboxing classes on the schedule at OMNI Martial Arts & Fitness, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids Kickboxing 9 mentions

“It's amazing to watch a room full of little kids running around one second and jump in line, ready to learn, the next second.”

All gyms that run kids kickboxing →

🌱 Beginners 3 mentions

“Their professionalism shines through in every class, ensuring that both beginners and experienced martial artists feel challenged and supported.”

All gyms that run beginners →

🤜 Sparring

“Both in class and sparring you definitely feel like everyone is trying to help you improve.”

All gyms that run sparring →

🏆 Competition Team

“We met some of the coaches with OMNI at a PKB tournament today.”

All gyms that run competition team →

🦵 Muay Thai 14 mentions

“Kru Z and Kru Allison know each individual child and family and have created a wonderful, supportive community.”

All gyms that run muay thai →

Other martial arts here

Kickboxing gyms are usually multi-discipline. Here's what else members mention training under the same roof at OMNI Martial Arts & Fitness — mined from their reviews and the gym's own info.

🦵 Muay Thai 4 mentions

“I would highly recommend them for anyone looking to get started in Muay Thai or find a gym to call home.”

Other gyms that also teach muay thai →

🛡️ Self-Defense 4 mentions

“They have made huge strides no only in their martial arts and self defense skills, but also in their fitness, confidence and, development good humans.”

Other gyms that also teach self-defense →

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 muay thai, boxing, or MMA alongside your kickboxing, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 119 Google reviews — in their own words.

🌱 welcoming to beginners 6 mentions

“There’s a real sense of community and the coaches and other gym trainees are very supportive of all levels!”

🎉 fun, high-energy classes 2 mentions

“The coaches run an engaging and fun class that will allow you to get in some good work if it’s your 1st day or your 1000th.”

🧒 strong kids program 2 mentions

“Both of my sons (15 yrs and 7 yrs) love attending class at Omni Martial Arts.”

🧼 clean, well-equipped gym 5 mentions

“If you are looking for a clean gym that emphasizes humility and respect while pushing you challenge yourself, this is the place for you!”

💗 welcoming to women 3 mentions

“From the moment you walk in, you’re greeted with a clean, well-maintained space that reflects their high standards of professionalism.”

🧠 builds confidence & relieves stress 3 mentions

“They have made huge strides no only in their martial arts and self defense skills, but also in their fitness, confidence and, development good humans.”

From the reviews

I always appreciate when I walk into a gym and the first thing I notice is how clean & nice it smells. I had a blast learning with a strong group of ladies. We all got to expand our skills. It was such good energy, and the coaches were great.

★★★★★ — Tawnie, Feb 2025

I can't say enough great things about TMA Boulder! From the moment you walk in, you’re greeted with a clean, well-maintained space that reflects their high standards of professionalism. The gym is spotless, well-organized, and always has a welcoming atmosphere.

★★★★★ — Lucie, Feb 2025

I have been a member of Omni Martial Arts for the last year and I can honestly say that this place is one of a kind. The space held by Greg, Alison and the rest of the coaching staff in unmatched.

★★★★★ — Alexander, Sep 2025

I have had a very positive experience with this program and the team is authentically family friendly, and clearly know how to teach. My 10 year old daughter found a community of girls that are as interested in martial arts as she is and this has been an absolute game changer.

★★★★★ — Daniel, Jun 2024

Excerpts from public Google reviews. Read all 119 reviews →

New to kickboxing? Start at OMNI Martial Arts & Fitness

OMNI Martial Arts & Fitness comes up as a beginner-friendly gym, going by their listing and members’ reviews. If you've never thrown a punch or a kick, that's exactly who a good beginners class is for. A few things worth knowing before your first week. First, you don't need to be fit or coordinated to start — you get in shape by training, not before it, and coaches scale every drill to you. Second, you won't be thrown into hard sparring — reputable gyms build the basics (stance, footwork, and punches and kicks on pads and bags) first, and any contact eases in gradually under a coach's control. Third, all fitness 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.

Check beginner classes on their site

Your first kickboxing class at OMNI Martial Arts & Fitness

Nervous about walking into a kickboxing 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 — stance, footwork, and punches and kicks on pads or a heavy bag — not hard sparring. Go at your own pace and rest whenever you need to; no one will bat an eye. What to wear: comfortable athletic clothes you can move and sweat in, and supportive trainers. What to bring: water, and hand wraps and gloves if you have them — many gyms lend loaner gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves and wraps (and shin guards once you start sparring). Sparring is optional and eases in gradually, once your basics 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.

Kickboxing is a contact sport. Warm up, pace yourself, 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 OMNI Martial Arts & Fitness

3101 1/2 28th St, Boulder, CO80301

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.