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PHAS3 Martial Arts

4.9 ★★★★★ 78 Google reviews · Kickboxing gym in Santa Rosa, California

Kickboxing gym 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 phas3martialarts.com — book classes and see the live schedule
  • Phone +1 707-538-2950

Hours

Monday 3–8:30 pm
Tuesday 3–8:30 pm
Wednesday 3–8:30 pm
Thursday 3–8:30 pm
Friday 3–8:30 pm
Saturday 8 am–12 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 PHAS3 Martial Arts, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids Kickboxing 11 mentions

“I have been lucky to train at PHAS3 for more than 10 years and my children did their kids martial arts program as well.”

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🌱 Beginners 5 mentions

“Whether you're a beginner or a seasoned pro, you'll find a welcoming and encouraging environment that will help you push yourself to new heights.”

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🏆 Competition Team

“Whether you have multiple title belts or have never put on a pair of gloves, this place is for you.”

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🦵 Muay Thai 8 mentions

“If you're looking for a highly organized, clean, friendly environment to train and learn the art of Muay Thai and learn ways to overcome life's challenges then look no further.”

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🥊 Boxing

“I tried another boxing gym in Santa Rosa and was blown away by the difference here.”

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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 PHAS3 Martial Arts — mined from their reviews and the gym's own info.

🦵 Muay Thai 8 mentions

“If you're looking for a highly organized, clean, friendly environment to train and learn the art of Muay Thai and learn ways to overcome life's challenges then look no further.”

Other gyms that also teach muay thai →

🥊 Boxing

“I tried another boxing gym in Santa Rosa and was blown away by the difference here.”

Other gyms that also teach boxing →

🛡️ Self-Defense 2 mentions

“PHAS3 is an incredible muay thai gym that will give you incredible confidence from the fitness, self-defense skills and spiritual approach they teach.”

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 78 Google reviews — in their own words.

🧑‍🏫 expert, motivating coaching 5 mentions

“Almost every week, I learn a new tool or technique from not only the amazing coaches, but through watching the talented fighters that train here.”

🌱 welcoming to beginners 10 mentions

“Whether you're a beginner or a seasoned pro, you'll find a welcoming and encouraging environment that will help you push yourself to new heights.”

💗 welcoming to women 4 mentions

“From the moment I walked in the door, I was welcomed with open arms and made to feel like part of the family.”

🧠 builds confidence & relieves stress 6 mentions

“He has had some insecurities that he was struggling with and ever since he started going to PHAS3 those insecurities have diminished and his self confidence has skyrocketed.”

🤝 friendly, family gym 12 mentions

“If you're looking for a highly organized, clean, friendly environment to train and learn the art of Muay Thai and learn ways to overcome life's challenges then look no further.”

From the reviews

I’ve been going to PHAS3 for a few months now, and I have to say, I'm blown away by the experience. From the moment I walked in the door, I was welcomed with open arms and made to feel like part of the family.

★★★★★ — C.K, Jun 2023

What an amazing organization. If you're looking for a highly organized, clean, friendly environment to train and learn the art of Muay Thai and learn ways to overcome life's challenges then look no further. My 9 year old son has been going here for months and absolutely loves it!

★★★★★ — Chris, Jan 2025

Phas3 is legit. I have been training combat sports since childhood and have been in gyms throughout the Bay Area. The second I walked into Phas3 I knew it was the right gym. Almost every week, I learn a new tool or technique from not only the amazing coaches, but through watching the talented fighters that train here.

★★★★★ — Jonathan, Dec 2024

PHAS3 has been a very welcoming and fun experience. The coaches and staff are great and the classes are suited for beginner to advanced. I had no martial arts experience when I started in September and was looking for a good workout with some combat training and it’s been more than that!

★★★★★ — Sean, Jan 2025

Excerpts from public Google reviews. Read all 78 reviews →

New to kickboxing? Start at PHAS3 Martial Arts

PHAS3 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 PHAS3 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 PHAS3 Martial Arts

575 Summerfield Rd, Santa Rosa, CA95405

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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.