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Underdog Mixed Martial Arts

5 ★★★★★ 79 Google reviews · Kickboxing gym in West Hartford, Connecticut

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 — 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 underdogmma.com — book classes and see the live schedule
  • Phone (860) 616-1365

Hours

Monday 6 AM–1 PM, 5–9 PM
Tuesday 6 AM–1 PM, 5–9 PM
Wednesday 6 AM–1 PM, 5–9 PM
Thursday 6 AM–1 PM, 5–9 PM
Friday 6 AM–1 PM, 5–9 PM
Saturday 8 AM–3 PM
Sunday 9 AM–2 PM

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

🧒 Kids Kickboxing 8 mentions

“They offer multiple classes all day (including the best strength & conditioning program), running in parallel for both adults and kids, and professional instructors.”

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🌱 Beginners 4 mentions

“I’ve dabbled in a couple areas of martial arts, and can say the instruction is on point and the other athletes are super friendly and helpful for me as a beginner.”

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🤜 Sparring

“I dropped in for a sparring session and was met with high-level fighters and top-tier etiquette — something I truly respect in a gym.”

All gyms that run sparring →

🏆 Competition Team 2 mentions

“Whether your goals are to simply get exercise, learn martial arts as a hobby, or compete at any level (amateur to professional), everyone is welcome.”

All gyms that run competition team →

Teens Kickboxing

“Underdog keeps its edge while cultivating a safe environment for kids, teens and those stepping into a gym for the first time.”

All gyms that run teens kickboxing →

Kickboxing Bootcamp 2 mentions

“They offer multiple classes all day (including the best strength & conditioning program), running in parallel for both adults and kids, and professional instructors.”

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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 Underdog Mixed Martial Arts — mined from their reviews and the gym's own info.

🏟️ MMA 12 mentions

“Their BJJ program is run by two of the top black belts in the state, and their MMA program produces some of the best fighters that have come out of CT.”

Other gyms that also teach mma →

🥋 Brazilian Jiu-Jitsu 9 mentions

“Their BJJ program is run by two of the top black belts in the state, and their MMA program produces some of the best fighters that have come out of CT.”

Other gyms that also teach brazilian jiu-jitsu →

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 79 Google reviews — in their own words.

🧑‍🏫 expert, motivating coaching 5 mentions

“Thoughtful, knowledgeable coaches on both the gym side and the martial arts side.”

🌱 welcoming to beginners 13 mentions

“I’ve dabbled in a couple areas of martial arts, and can say the instruction is on point and the other athletes are super friendly and helpful for me as a beginner.”

💦 killer cardio workout 2 mentions

“They offer multiple classes all day (including the best strength & conditioning program), running in parallel for both adults and kids, and professional instructors.”

🏆 active competition / fight team 2 mentions

“Whether your goals are to simply get exercise, learn martial arts as a hobby, or compete at any level (amateur to professional), everyone is welcome.”

🧼 clean, well-equipped gym 6 mentions

“Underdog is a great gym with top instructors and a friendly, welcoming atmosphere.”

🤝 friendly, family gym 24 mentions

“I’ve dabbled in a couple areas of martial arts, and can say the instruction is on point and the other athletes are super friendly and helpful for me as a beginner.”

From the reviews

I am a police officer and have two young daughters. l feel I can speak for the benefits this gym offers for my professional needs as well as my personal desires as a parent.

★★★★★ — C, Jun 2017

I found Underdog through my husband, who (full disclosure) is now providing the strength and conditioning program for the gym. I’ve dabbled in a couple areas of martial arts, and can say the instruction is on point and the other athletes are super friendly and helpful for me as a beginner.

★★★★★ — Sam, Jan 2020

Wow lots to say about this academy. First of all the facilities are great! Tons of mats, workout equipment, showers etc. I attended the NoGi and Gi class (in that order) as an out of state guest; my professor used to train here regularly and recommended I visit.

★★★★★ — Ayman, Apr 2025

This gym really goes above and beyond. It’s hard to put your finger on just one aspect of what makes it a special place. They have built a world class community of trainers, instructors and masseurs.

★★★★★ — Peter, Sep 2020

Excerpts from public Google reviews. Read all 79 reviews →

New to kickboxing? Start at Underdog Mixed Martial Arts

Underdog Mixed Martial Arts 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 Underdog 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 Underdog Mixed Martial Arts

23A Andover Dr, West Hartford, CT06110

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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.