HomeMississippiColumbus › Relentless MMA & Fitness

Relentless MMA & Fitness

4.4 ★★★★☆ 91 Google reviews · Kickboxing gym in Columbus, Mississippi

Kickboxing gym Beginners welcome Kids & teens Cardio kickboxing Competition team

Plan your first class

  • 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
  • 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 relentless-mma.com — book classes and see the live schedule
  • Phone (662) 574-6487

Hours

Monday 3–8 PM
Tuesday 3–8 PM
Wednesday 3–8 PM
Thursday 3–8 PM
Friday 3–6 PM
Saturday Closed
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 Relentless MMA & Fitness, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids Kickboxing 8 mentions

“My son and I have trained at Relentless for over two years and we have never had anything at but positive experiences at the gym!”

All gyms that run kids kickboxing →

🤜 Sparring

“It’s not just a boring workout on a treadmill, which is why I enjoy it so much.”

All gyms that run sparring →

🏆 Competition Team 2 mentions

“Becoming Champions, repetitive competitors, or overall great martial artists.”

All gyms that run competition team →

Teens Kickboxing

“I've played two sports in high school and one in college, and I've been part of many clubs.”

All gyms that run teens kickboxing →

🌱 Beginners

“I was looking for a gym that offered mixed martial arts classes for beginners and happened upon relentless!”

All gyms that run beginners →

Other martial arts here

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

🏟️ MMA 8 mentions

“Jake has created a special gym environment and I highly encourage anyone interested in MMA or jiu jitsu to give them gym a try!”

Other gyms that also teach mma →

🥋 Brazilian Jiu-Jitsu 9 mentions

“Jake has created a special gym environment and I highly encourage anyone interested in MMA or jiu jitsu to give them gym a try!”

Other gyms that also teach brazilian jiu-jitsu →

🛡️ Self-Defense

“I would recommend the gym to anyone wanting to learn self defense or get in shape.”

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 91 Google reviews — in their own words.

🌱 welcoming to beginners 6 mentions

“Having moved and joined Relentless recently, I have found both members and staff to be exceedingly welcoming and friendly.”

💦 killer cardio workout 2 mentions

“They encourage you to be better, help you learn at your own pace, and provide you with amazing workouts.”

🧠 builds confidence & relieves stress 2 mentions

“I have seen such a boost in confidence.”

🤝 friendly, family gym 21 mentions

“I recently left due to moving out of state for a job, and aside from my family, this gym and the people therein are EASILY the thing I miss most about Mississippi.”

From the reviews

This isn’t just a gym, it is a family. My son and I have been members with Relentless for the last 7 years. It is a wonderful atmosphere and the staff make the work outs enjoyable!

★★★★★ — Julie, Apr 2018

I was hesitant at first to even try reaching out as I was just seeing what hobbies I could start during an intermittent work move. Although the initial phone queries feel a bit disconnected from the establishment and odd, I decided to just go in person for the introductory class.

★★★★★ — Ronald, Jul 2025

It’s been a year since I joined the Relentless MMA family and I wanted to share my thoughts on it. Relentless MMA is a amazing gym where you find people from different places with different goals having a great time and being like a family. All the instructors at the gym are absolutely amazing.

★★★★★ — Darius, Jul 2022

Relentless is really a place for everyone! I enrolled my two boys (6 and 8) into their kids Jiu-Jitsu and MMA class. They LOVE it! I have seen such a boost in confidence. Plus they are focused! They can actually remember what they have learned in a previous class. I have joined their BJJ class and love the atmosphere.

★★★★★ — A, Nov 2018

Excerpts from public Google reviews. Read all 91 reviews →

New to kickboxing? Start at Relentless MMA & Fitness

Relentless MMA & Fitness 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 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 Relentless MMA & 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 Relentless MMA & Fitness

128 S McCrary Rd, Columbus, MS39702

Get directions Instagram · Facebook

More kickboxing gyms near Columbus

Summit Fitness Kickboxing & Jiu Jitsu

4.8 ★★★★★ 42 reviews

400 Industrial Park Rd G, Starkville, MS

🥊 Free trial / intro class — check their site

Kickboxing gym Free trial Beginners welcome Kids & teens Cardio kickboxing Competition team Affiliated expert, motivating coachingkiller cardio workoutstrong kids program

26.6 miles away

All kickboxing gyms in Columbus, MS →

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.