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Rounders MMA Fullerton
4.8 ★★★★★ 40 Google reviews · Muay thai gym in Fullerton, California
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
- Private lessons private, one-on-one coaching available — a focused way to start or to work around a busy schedule; ask about availability and rates
- Fitness & conditioning muay thai fitness and cardio classes — a serious workout you can do without ever having to spar
- 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 roundersmma.com — book classes and see the live schedule
- Phone +1 657-299-1830
Hours
| Monday | 10 am–9 pm |
| Tuesday | 10 am–9 pm |
| Wednesday | 10 am–9 pm |
| Thursday | 10 am–9 pm |
| Friday | 10 am–9 pm |
| Saturday | 10 am–12 pm |
| Sunday | 12–2 pm |
The classes they run
“Perfect for all men women and children at all levels wanting to get into the best shape of their life .”
“Perfect for all men women and children at all levels wanting to get into the best shape of their life .”
“I normally do 2 hour private sessions and highly recommend this gym and it's coaching staff.”
“This is the best cardio kickbox / mma mixed martial arts / bjj Brazilian jiu jitsu / muay thai gym ever!”
“On March 30th my son, Douglas Bigler, now 19 won his first kick boxing amateur fight in Clearwater Florida.”
“Whether you’re looking to compete, get in shape, or learn real self-defense, this gym delivers.”
Other martial arts here
“I train at the location in Fullerton and Santa ana, they offer mixed martial arts classes, Brazilian jujitsu classes, and muay thai kickboxing classes.”
“If you were ever curious about learning the fundamentals of boxing, kick boxing, jujitsu, and more Rounders is the place for you.”
“This is the best cardio kickbox / mma mixed martial arts / bjj Brazilian jiu jitsu / muay thai gym ever!”
“I train at the location in Fullerton and Santa ana, they offer mixed martial arts classes, Brazilian jujitsu classes, and muay thai kickboxing classes.”
What members say
“Extremely knowledgeable instructors that will push you to be your best version.”
“Joe, the owner, is incredibly kind and welcoming, with an exceptional ability to coach students of all ages and experience levels.”
“Joe, the owner, is incredibly kind and welcoming, with an exceptional ability to coach students of all ages and experience levels.”
“If you were ever curious about learning the fundamentals of boxing, kick boxing, jujitsu, and more Rounders is the place for you.”
“This is the best cardio kickbox / mma mixed martial arts / bjj Brazilian jiu jitsu / muay thai gym ever!”
“On March 30th my son, Douglas Bigler, now 19 won his first kick boxing amateur fight in Clearwater Florida.”
From the reviews
I love this gym. If you were ever curious about learning the fundamentals of boxing, kick boxing, jujitsu, and more Rounders is the place for you. Coach Joe has created at atmosphere that is not only friendly, welcoming and positive but also motivating.
Been going to rounders Fullerton for around a month now, been the best thing for me. Coaches are great they never make me feel any less and is always pushing forward and are very positive not only coaches but everyone out there is so friendly always makes me feel like a part of family, besides that the workout the…
My son attended this gym from 2020-2021 and it was the best experience of his life. We cannot even begin to show our deepest gratitude and respect for all the coaches that trained with him.
Came in for a couple sessions during a work trip. Good coaching, great atmosphere. If you’re thinking about training, looking for a gym in the area, or traveling and need a spot to train, I definitely recommend stopping by for the free class to check them out.
New to muay thai? Start at Rounders MMA Fullerton
Rounders MMA Fullerton 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 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.
Your first muay thai class at Rounders MMA Fullerton
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.
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