HomeCaliforniaSanta Rosa › PHAS3 Martial Arts

PHAS3 Martial Arts

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

Muay Thai gym Free trial Beginners welcome Kids & teens Fight 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 levels welcome, including total beginners — you don't need to be fit or have any experience to start
  • Kids & youth classes kids and youth muay thai classes — built around discipline, focus, and confidence
  • Sparring & clinch sparring and clinch sessions for members ready for controlled contact — always optional and coach-supervised
  • Fight team a competition team for members who want to test themselves as amateur fighters
  • Today see hours ·
  • Website & schedule phas3martialarts.com — book classes and see the live schedule
  • Phone (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, seminars, and open-gym times — worth a quick check before a special trip.

The classes they run

Muay thai 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.

🌱 Beginner Muay Thai 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.”

All gyms that run beginner muay thai →

🧒 Kids Muay Thai 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.”

All gyms that run kids muay thai →

🏆 Fight Team

“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.”

All gyms that run fight team →

🛡️ 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.”

All gyms that run self-defense →

Other martial arts here

Muay thai 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.

🥊 Boxing

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

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 BJJ, boxing, or MMA alongside muay thai, 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, authentic 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.”

🤝 no-ego, friendly 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.”

📘 real technique & fundamentals 2 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.”

🧠 builds confidence & discipline 9 mentions

“I highly recommend them because they take a holistic approach — not just focusing on the physical aspect, but also including education about nutrition and character building.”

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 muay thai? 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 program is for. A few things worth knowing before your first week. First, you don't need to be fit to start — you get in shape by training, not before it, and coaches scale the conditioning to you. Second, you won't be thrown into sparring — reputable gyms build fundamentals (stance, footwork, and the basic strikes of the "art of eight limbs") for weeks before any contact, and sparring stays optional. Third, all 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 muay thai class at PHAS3 Martial Arts

Nervous about walking into a muay thai 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 on pads and bags — not fighting. Rest whenever you need to; no one will bat an eye. What to wear: shorts or athletic wear and a t-shirt; you'll train barefoot on the mats. What to bring: water and hand wraps if you have them — many gyms lend gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves, wraps, a mouthguard, and shin guards. Sparring is optional and comes later, once your fundamentals 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.

Muay thai is a contact sport. Ease in, 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

Get directions Instagram · Facebook

More muay thai gyms near Santa Rosa

Nor Cal Fighting Alliance Santa Rosa

4.8 ★★★★★ 52 reviews

917 Piner Rd, Santa Rosa, CA

🥊 Free trial class — check their site

Ages 3–12

Muay Thai gym Free trial Beginners welcome Kids & teens Private lessons Fight team welcoming to beginnersno-ego, friendly gymreal technique & fundamentals

3.8 miles away

Full Circle Muay Thai

5 ★★★★★ 3 reviews

1820 Empire Industrial Ct, Santa Rosa, CA

Muay Thai gym Beginners welcome Fight team

4.3 miles away

Resurrection Training Club

5 ★★★★★ 23 reviews

3345 Santa Rosa Ave Bldg B, Santa Rosa, CA

🥊 Free trial class — check their site

Ages 5–12

Muay Thai gym Free trial Beginners welcome Kids & teens Fitness Fight team expert, authentic coachingwelcoming to beginnersno-ego, friendly gym

4.6 miles away

All muay thai gyms in Santa Rosa, CA →

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.