HomeArizonaPeoria › Knockout Fitness

Knockout Fitness

4.8 ★★★★★ 118 Google reviews · Kickboxing gym in Peoria, Arizona

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

Affiliated gym — reviews and the gym's own info suggest it belongs to a known kickboxing or boxing-fitness franchise or network (think 9Round, iLoveKickboxing, CKO, TITLE Boxing Club or Jabz). Franchise gyms run a consistent class format and are often a friendly, familiar place to start. If a specific brand matters to you, confirm it on the gym's own site.

Family-owned gym featuring kickboxing and boxing classes as well as some personal training.

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 knockout-fitness.com — book classes and see the live schedule
  • Phone (623) 755-5772

Hours

Monday 6 AM–9 PM
Tuesday 6 AM–9 PM
Wednesday 6 AM–9 PM
Thursday 6 AM–9 PM
Friday 6 AM–8 PM
Saturday 9 AM–2 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 Knockout Fitness, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🔥 Cardio Kickboxing 5 mentions

“I love that he incorporates a challenging full body workout in warm-up, and quick but intense cardio spurts in between combos on the heavy bag in his classes.”

All gyms that run cardio kickboxing →

🧒 Kids Kickboxing 3 mentions

“If you are experienced they also have advanced classes as well as classes for kids.”

All gyms that run kids kickboxing →

🌱 Beginners 6 mentions

“The instructors are very knowledgeable and explain things so well for beginners as well as more expirenced boxers to keep the class just right for each person.”

All gyms that run beginners →

🥊 Boxing 6 mentions

“I've always been a weight lifter but adding cardio/ kick-boxing/boxing has really changed up my routine in the best way possible.”

All gyms that run boxing →

👤 Private Lessons 2 mentions

“I also think it’s cool that they have full gym equipment and free weights in addition to one on one training.”

All gyms that run private lessons →

Other martial arts here

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

🥊 Boxing 6 mentions

“I've always been a weight lifter but adding cardio/ kick-boxing/boxing has really changed up my routine in the best way possible.”

Other gyms that also teach boxing →

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 118 Google reviews — in their own words.

🧑‍🏫 expert, motivating coaching 5 mentions

“⚡️ Coach Kim is a secret weapon 💎 She is an incredible coach/person and knows exactly how to motivate a room full of trainees at all different ages and skill levels.”

🌱 welcoming to beginners 11 mentions

“The instructors are very knowledgeable and explain things so well for beginners as well as more expirenced boxers to keep the class just right for each person.”

🎉 fun, high-energy classes 2 mentions

“I like that he helps us with our techniques and each class is always such a great workout.”

💦 killer cardio workout 5 mentions

“I love that he incorporates a challenging full body workout in warm-up, and quick but intense cardio spurts in between combos on the heavy bag in his classes.”

⚖️ great for weight loss 5 mentions

“I seek out her classes each week because she challenges me to keep trying and genuinely cares about seeing growth and transformation in members.”

🧼 clean, well-equipped gym 4 mentions

“Awesome facility, great equipment, awesome kickboxing and boxing instructor lead classes.”

From the reviews

I have been with Knockout Fitness Peoria for just over two months now and have had a really positive experience so far. I came to KO having never done any type of boxing or kickboxing training before but had passed by the gym location many times with curiosity and honestly just desperately needed something different.

★★★★★ — Cameron, May 2025

I lost 15 lbs and in the best shape that I have in YEARS coming here 4-5 times a week for the last 2 months. I even cancelled my gym membership because it’s so effective. The coaches here are all super cool, supportive and encouraging.

★★★★★ — Emily, Sep 2024

I am extremely grateful to be a part of Knockout Fitness! The workouts are intense but calibrated to accommodate people of all ages and stages of life. The staff is extremely knowledgeable and encouraging, always willing to help us get prepared for success!

★★★★★ — Montgomery, May 2025

Awesome facility, great equipment, awesome kickboxing and boxing instructor lead classes. I’ve lost 40 lbs since they have opened!! I’m a father of three and don’t really have the time to spend hours in the gym. The 60 min class kicks my butt and really challenges me to push myself.

★★★★★ — Lionel, Mar 2022

Excerpts from public Google reviews. Read all 118 reviews →

New to kickboxing? Start at Knockout Fitness

Knockout 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 Knockout 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 Knockout Fitness

8376 W Cactus Rd #104, Peoria, AZ85381

Get directions Facebook

More kickboxing gyms near Peoria

Siege Mixed Martial Arts & Fitness (MMA)

4.9 ★★★★★ 118 reviews

14131 N Rio Vista Blvd Ste 13, Peoria, AZ

🥊 Free trial / intro class — check their site

Kickboxing gym Free trial Beginners welcome Kids & teens Cardio kickboxing Competition team welcoming to beginnersactive competition / fight teamclean, well-equipped gym

1.3 miles away

Red Hawk Academy ( MMA & Jiu Jitsu School)

5 ★★★★★ 213 reviews

9850 W Peoria Ave, Peoria, AZ

🥊 Free trial / intro class — check their site

Kickboxing gym Free trial Beginners welcome Kids & teens Sparring Competition team expert, motivating coachingwelcoming to beginnersactive competition / fight team

2.1 miles away

Thunderstruck MMA

5 ★★★★★ 14 reviews

6330 W Greenway Rd, Glendale, AZ

🥊 Free trial / intro class — check their site

Kickboxing gym Free trial Beginners welcome Kids & teens Competition team expert, motivating coachingbuilds confidence & relieves stress

3.3 miles away

All kickboxing gyms in Peoria, AZ →

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.