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Ronin Martial Arts

4.9 ★★★★★ 31 Google reviews · Kickboxing gym in Denville, New Jersey

Free trial Beginners welcome Kids & teens

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
  • 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
  • Today see hours ·
  • Website & schedule ronintkd.com — book classes and see the live schedule
  • Phone +1 973-298-0997

Hours

Monday 9 am–9 pm
Tuesday 9 am–9 pm
Wednesday 9 am–9 pm
Thursday 9 am–9 pm
Friday 9 am–9 pm
Saturday 9 am–5 pm
Sunday 9 am–1 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 Ronin Martial Arts, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids Kickboxing 31 mentions

“John, Nick, Ryan and Kelly have given my daughter an amazing experience and I would recommend Ronin to anyone at any age level.”

All gyms that run kids kickboxing →

🌱 Beginners 3 mentions

“John & Nick do an incredible job tailoring classes to all skill levels from advanced to beginner and all abilities.”

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

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 31 Google reviews — in their own words.

🎉 fun, high-energy classes 2 mentions

“The team does a great job integrating fun and games with real learning so the kids are never bored.”

🧒 strong kids program 4 mentions

“The instructors are experienced, safety conscious, great with kids and adults.”

🤝 friendly, family gym 6 mentions

“The team here is super professional and friendly and makes you feel super comfortable from the moment you walk in.”

From the reviews

Love, love, love this place!!!!!! I have never met a more dedicated and kind group of people! The facility is clean, comfortable and well built. The instructors are knowledgeable, friendly and have a great sense of humor. If you want to feel like you're training with family, Ronin Martial Arts is the place to go!

★★★★★ — Sarah, Jul 2019

Ronin’s team is PHENOMENAL. I feel like family the second I walk in the door and I always get a killer workout to boot! Ronin’s team has allowed me to get fit, lose weight, and love myself through their constant support, encouragement, and guidance. They have programs in kickboxing, yoga, and Tae Kwon Do.

★★★★★ — Leanna, Jul 2019

Beautiful new facility. The space is great and is suited to all different type classes. The instructors are experienced, safety conscious, great with kids and adults. I can’t wait to take some yoga classes there. Love the new location. Same wonderful teachers. Put this on your list of must do’s ! You won’t be sorry.

★★★★★ — Pat, Jul 2019

So happy I started going to Ronin!! The team here is super professional and friendly and makes you feel super comfortable from the moment you walk in. The facility is very clean and modern. It’s so refreshing to see a fitness/martial arts facility be so inclusive of all types of people.

★★★★★ — Peter, Jul 2019

Excerpts from public Google reviews. Read all 31 reviews →

New to kickboxing? Start at Ronin Martial Arts

Ronin 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.

See their beginner class info

Your first kickboxing class at Ronin 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 Ronin Martial Arts

510 NJ-53 Unit 1 c, Denville, NJ07834

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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.