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Greubel's Mixed Martial Arts

4.9 ★★★★★ 262 Google reviews · Kickboxing gym in Martinez, Georgia

Kickboxing gym Free trial Beginners welcome Kids & teens Cardio kickboxing Private lessons

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 — built around confidence, focus, and fun
  • Private lessons one-on-one coaching available — a focused way to start or to work around a busy schedule; ask about availability and rates
  • Sparring sparring and partner work for members who want it — always optional, eased in gradually, with the coach controlling the contact
  • Today see hours ·
  • Website & schedule gmma.ninja — book classes and see the live schedule
  • Phone +1 706-737-0911

Hours

Monday 6–7 am, 4–8:30 pm
Tuesday 6–7 am, 4–8:30 pm
Wednesday 6–7 am, 4–8:30 pm
Thursday 6–7 am, 4–8:30 pm
Friday 6–7 am, 4:30–6:30 pm
Saturday 10 am–1 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 Greubel's Mixed Martial Arts, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🔥 Cardio Kickboxing 4 mentions

“Striking classes are a great workout, on top of a curriculum that combines elements of Kick boxing, Karate, Muah Thai, etc.”

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🧒 Kids Kickboxing 11 mentions

“Coach Bernard , coach Edgar and coach Ronaldo go above and beyond to teach the kids and my kids just think so highly of them .”

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🌱 Beginners 4 mentions

“He went from being a sparring superstar in his old school to starting Greubel's in the beginner class, and it was the best decision we could have made for him.”

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🤜 Sparring 2 mentions

“He went from being a sparring superstar in his old school to starting Greubel's in the beginner class, and it was the best decision we could have made for him.”

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🥊 Boxing 7 mentions

“You won’t find any kickboxing, boxing, or jiujitsu coach in the area with more experience and passion for their craft than Mark, Ronaldo, and Bernard.”

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👤 Private Lessons

“No matter how large the classes can be, the instructors are all really good at giving each person one-on-one time, almost like having a personal session.”

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Other martial arts here

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

🥊 Boxing 7 mentions

“You won’t find any kickboxing, boxing, or jiujitsu coach in the area with more experience and passion for their craft than Mark, Ronaldo, and Bernard.”

Other gyms that also teach boxing →

🏟️ MMA 4 mentions

“Great community, great programs (striking, BJJ, boxing, mma & fitness), and great facility.”

Other gyms that also teach mma →

🥋 Brazilian Jiu-Jitsu 6 mentions

“They have an excellent variety of striking, grappling, and cardio courses at different experience levels, which offers a lot of flexibility no matter what you want to do.”

Other gyms that also teach brazilian jiu-jitsu →

🥋 Karate

“Striking classes are a great workout, on top of a curriculum that combines elements of Kick boxing, Karate, Muah Thai, etc.”

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 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 262 Google reviews — in their own words.

🧑‍🏫 expert, motivating coaching 3 mentions

“I tried multiple schools nearby, and this school stands out for having great instructors for kids.”

🌱 welcoming to beginners 7 mentions

“He went from being a sparring superstar in his old school to starting Greubel's in the beginner class, and it was the best decision we could have made for him.”

🎉 fun, high-energy classes 4 mentions

“Striking classes are a great workout, on top of a curriculum that combines elements of Kick boxing, Karate, Muah Thai, etc.”

💦 killer cardio workout 5 mentions

“Striking classes are a great workout, on top of a curriculum that combines elements of Kick boxing, Karate, Muah Thai, etc.”

🧼 clean, well-equipped gym 3 mentions

“Great community, great programs (striking, BJJ, boxing, mma & fitness), and great facility.”

🧠 builds confidence & relieves stress 2 mentions

“My child’s confidence has increased immensely.”

From the reviews

You won’t find any kickboxing, boxing, or jiujitsu coach in the area with more experience and passion for their craft than Mark, Ronaldo, and Bernard. I’ve trained on and off my whole life. I’m in the Army so I often move around a lot and have been a member at multiple gyms throughout my lifetime.

★★★★★ — Davon, Sep 2024

I have been going to Greubel's for 4 months now and I feel like I am part of the family. The instructors are simply amazing. No matter how large the classes can be, the instructors are all really good at giving each person one-on-one time, almost like having a personal session.

★★★★★ — Opwell, Apr 2018

My teenage son switched from another martial arts school to Greubel's exactly one year ago because he wanted to attend a school that would challenge him more in his favorite format, kickboxing.

★★★★★ — Mickey, Jan 2024

This place has gotten me into the best shape of my life. Been working out for over a decade in the “regular gym” and it doesn’t even compare to the results I’ve gotten here. Everybody there is very down to earth, helpful, and fun to be around.

★★★★★ — Barrett, Jan 2024

Excerpts from public Google reviews. Read all 262 reviews →

New to kickboxing? Start at Greubel's Mixed Martial Arts

Greubel's Mixed Martial Arts 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 Greubel's Mixed Martial Arts

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 Greubel's Mixed Martial Arts

4014 Columbia Rd, Martinez, GA30907

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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.