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KnuckleUp Academy
4.8 ★★★★★ 113 Google reviews · Kickboxing gym in Douglasville, Georgia
Clean venue offering Brazilian jiu-jitsu, boxing, Muay Thai and MMA classes.
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
- 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 knuckleupacademy.com — book classes and see the live schedule
- Phone (678) 871-6621
Hours
| Monday | 6–10 AM, 4:30–8:30 PM |
| Tuesday | 6–10 AM, 4:30–8:30 PM |
| Wednesday | 6–10 AM, 4:30–8:30 PM |
| Thursday | 6–10 AM, 4:30–8:30 PM |
| Friday | 7–10 AM |
| Saturday | 8 AM–12 PM |
| Sunday | Closed |
The classes they run
“Austen runs an excellent program for both kids and adults, and his ability to coach across different age groups really shows his passion and dedication to the sport.”
“My 4 year old started in August of 2025 with BJJ he then chose to switch to Muay Thai.”
“I also value the individualized attention they provide, ensuring each child receives meaningful one-on-one time.”
Other martial arts here
“My 4 year old started in August of 2025 with BJJ he then chose to switch to Muay Thai.”
“If your serious about your fitness journey, wanting to learn jiu jitsu, striking or improve conditioning, this is the place to be!”
“I recommend it to any parent searching for a self-defense course.”
What members say
“There are many great coaches there, and a for my strikers like me who look to be better coach yemi is the guy you want to see.”
“The trainers there are super welcoming, supportive, and amazing at making sure you not only get a fantastic workout, but feel comfortable and have a good time doing so.”
“Our 7 y/o daughter has had so much fun watching her older brothers, that she can’t wait to start too!”
“If your serious about your fitness journey, wanting to learn jiu jitsu, striking or improve conditioning, this is the place to be!”
“My daughter is athletic, but struggles with confidence and socializing.”
“We’ve noticed a big improvement in both his confidence and his skills thanks to Austen’s coaching.”
From the reviews
KnuckleUp has been one of the best decisions we’ve made for our son. Austen runs an excellent program for both kids and adults, and his ability to coach across different age groups really shows his passion and dedication to the sport. I’ve seen other coaches, but his training style truly stands out.
Knuckleup is where it’s at! Was pretty consistent for a few years before I had to relocate. Came back after almost 4 years and it was like riding a bike. Coach Austin was just as welcoming and patient and enthusiastic as ever! Lots of new faces to me but the old camaraderie was still there!
This program is fantastic. My son and his friends have been enrolled for a few months, and he really enjoys it. I recommend it to any parent searching for a self-defense course. They also offer classes for adults, which I’ve been considering myself.
This gym offers top tier training, great energy & motivating coaches. The environment is welcoming but intense to challenge you every session. If your serious about your fitness journey, wanting to learn jiu jitsu, striking or improve conditioning, this is the place to be!
New to kickboxing? Start at KnuckleUp Academy
KnuckleUp Academy 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.
Your first kickboxing class at KnuckleUp Academy
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.
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