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Kaizen Martial Arts & Fitness

5 ★★★★★ 32 Google reviews · Kickboxing gym in Monrovia, California

Kickboxing gym Free trial Beginners welcome Kids & teens Cardio kickboxing Competition team

Martial arts studio offering karate classes for adults & kids, plus fitness-oriented kickboxing.

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 4–30) — built around confidence, focus, and fun
  • 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 karateinmonrovia.com — book classes and see the live schedule
  • Phone +1 626-301-9212

Hours

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

🔥 Cardio Kickboxing 13 mentions

“I love taking the cardio kickboxing class almost every night and the TRX class on the weekend with Jody.”

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🧒 Kids Kickboxing 19 mentions

“Great youth classes, excellent instructors, high student to instructor ratio (very important for young students), clean facilities, and a great range of class times to choose from.”

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🌱 Beginners 2 mentions

“Coming in as first-timers to martial arts, the Kaizen family has been nothing short of kind, helpful, patient, and reassuring.”

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🤜 Sparring

“This is a large, clean an impressive Marital Arts facility with two huge rooms, and even a large section for an audience to sit during workouts or tournaments.”

All gyms that run sparring →

🏆 Competition Team

“This is a large, clean an impressive Marital Arts facility with two huge rooms, and even a large section for an audience to sit during workouts or tournaments.”

All gyms that run competition team →

🥊 Boxing 2 mentions

“I also want to add that I admire and respect the Kaizen Kinetics boxing program for persons with Parkinson’s and other neurological diseases.”

All gyms that run boxing →

Other martial arts here

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

🥊 Boxing 2 mentions

“I also want to add that I admire and respect the Kaizen Kinetics boxing program for persons with Parkinson’s and other neurological diseases.”

Other gyms that also teach boxing →

🥋 Karate 3 mentions

“My son has been enrolled in karate lessons at Kaizen for just over a month now, and our experience has been positive from the start.”

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 32 Google reviews — in their own words.

🧑‍🏫 expert, motivating coaching 3 mentions

“Great youth classes, excellent instructors, high student to instructor ratio (very important for young students), clean facilities, and a great range of class times to choose from.”

🌱 welcoming to beginners 6 mentions

“Jody, Tom, and the entire Kaizen Martial Arts & Fitness staff are by far, the most incredible, dedicated, motivating, inspiring, personable and welcoming people I have ever met.”

🎉 fun, high-energy classes 3 mentions

“If you're looking for a great and fun workout, in a family/friendly environment, look no further!”

💦 killer cardio workout 2 mentions

“The kickboxing class is a great workout!”

⚖️ great for weight loss 2 mentions

“I recommend her classes to everyone, you get amazing results.”

🧒 strong kids program 3 mentions

“my son loved it and needless to say we are now going back tomorrow for another free class and signing him up.”

From the reviews

My son has been enrolled in karate lessons at Kaizen for just over a month now, and our experience has been positive from the start. Coming in as first-timers to martial arts, the Kaizen family has been nothing short of kind, helpful, patient, and reassuring.

★★★★★ — Quyen, May 2023

Jody, Tom, and the entire Kaizen Martial Arts & Fitness staff are by far, the most incredible, dedicated, motivating, inspiring, personable and welcoming people I have ever met. I love taking the cardio kickboxing class almost every night and the TRX class on the weekend with Jody.

★★★★★ — Andrea, Aug 2023

I am so happy that I found Kaizen Martial Arts and Fitness for cardio kickboxing. As a recent retiree and fitness enthusiast, I wanted to learn about kickboxing and am fortunate to have found the right gym. The gym is impressive in size and cleanliness. There are plenty of bags to work out on.

★★★★★ — Sharon, Jun 2025

We love this dojo. I first brought my son here because they had the most classes, on the most days and most time slots. This was important because....L.A. traffic, and because my job does not have consistent days and times.

★★★★★ — Leslie, Mar 2025

Excerpts from public Google reviews. Read all 32 reviews →

New to kickboxing? Start at Kaizen Martial Arts & Fitness

Kaizen Martial Arts & 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.

See their beginner class info

Your first kickboxing class at Kaizen 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 Kaizen Martial Arts & Fitness

135 E Chestnut Ave Unit 12, Monrovia, CA91016

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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.