Fitness classes near Kennesaw, GA

Our North Marietta location is just 15 minutes outside of Kennesaw.


700 Sandy Plains Road, Suite A13
Marietta, GA 30066

678-903-0100 Ext 4


Monday6:00 a.m. – 9:00 p.m
Tuesday9:00 a.m. – 9:00 p.m.
Wednesday6:00 a.m – 9:00 p.m.
Thursday9:00 a.m. – 9:00 p.m.
Friday6:00 a.m. – 8:00 p.m.
Saturday8:00 a.m – 2:00 p.m.


Enhance your routines and expand your skills with over 100 fitness and martial arts classes per week.

Fitness and Personal Training Classes Near Kennesaw, ga

Kennesaw, are you looking for a way to get into shape, learn self-defense, fitness skills, and more? Our X3 Sports location sits 15 minutes outside of Kennesaw, Georgia!

X3 Sports is a top-notch fitness training in Atlanta's premier gym, offering a high-energy and supportive environment.

Come meet our renowned trainers that provide quality instruction and practical tips you need to achieve your goals. Whether you're looking to improve your health, diversify your workouts, or compete at a higher level, X3 Sports will help you achieve your fitness goals.

We offer a robust range of classes including Kickboxing, Fast Track℠, Power Track℠, Boxing, Muay Thai, Brazilian Jiu Jitsu, Yoga, MMA, and Youth Classes. With so many training options over multiple disciplines, you will unleash your inner warrior!

Learn more about the 100 classes we offer below and get your first class FREE!

About The facility

X3 Sports North Marietta, a recently renovated 10,000 square foot facility, is located off the Canton Rd Connector exit of I-75 on Sandy Plains Road. The North Marietta location is convenient to Kennesaw, Marietta, and East Cobb.

Our gym has plenty of space with a free weights section, machine section, squat racks, and more! You can workout on your own during open gym times or while a class is present. Open mats and rings are also available while a class is not in session.

Our Top Classes


X3 Sports offers beginner-friendly kickboxing classes suitable for all levels, providing proper technique instruction and a safe environment to avoid injury. Trainers help guide and adjust the intensity to allow gradual progression.

  • Classes feature 120lb heavy punching bags for a thorough workout that tones muscles, burns fat, and improves cardiovascular health.
  • Participants can burn 700 to 900 calories per session, focusing on muscle strengthening andboosting metabolism, presenting an effective alternative to traditional running workouts.
  • Classes include diverse and dynamic sessions, varying speeds, intensities, routines, music, and martial arts maneuvers to keep workouts engaging and challenging.


Our Beginner Boxing class is perfect for those new to boxing or just starting out. Boxing is an excellent workout for weight loss, toning, improving coordination, and boosting energy levels. We provide all necessary training equipment and expert instruction from world-class trainers, who will teach proper techniques and new drills, helping you increase endurance and tone muscles. Just show up and get ready for a great workout.

jiu jitsu for womenBrazilian Jiu Jitsu

Train with our world-class coaches to master Brazilian Jiu Jitsu (BJJ), welcoming all belt levels and learners. Enjoy unlimited classes at X3 Sports to reach your goals faster, guided by professional instructors with over 60 years of combined experience. Our structured curriculum tracks your progress, with two class levels to ensure proper technique. BJJ is a top martial art for self-defense, suitable for everyone. We also offer competition preparation for those interested.


We offer many classes to help keep your body and mind at the top of your game.



Performed on real heavy bags with friendly instructors, you will burn up to 1,000 calories per​ class while having fun​ and learning real, effective kickboxing techniques. Change up your routine with one of the best fitness cardio workouts designed to help you lose weight, tone muscle, increase energy, and learn self-defense.



X3 Sports MMA classes will teach you MMA fundamentals and combined techniques. If you're a beginner, you'll learn the basics of striking, submissions, and wrestling—and how to blend them all together. When you're ready for more advanced moves, our world-class trainers will help you improve your skills. They can even train you to become a professional fighter.



Whether you're looking for the best system of self-defense, wanting a challenging way to stay active, or hold aspirations of competition, our world-class professors welcome all beginners through black belts onto the mats.



Yoga is a great way to balance your workout routine. X3 Sports Yoga classes will help you increase flexibility, tone muscles, reduce stress, increase core strength and stability, and develop better focus.



Muay Thai is also known as the "Art of 8 Limbs" for its use of not only punches and kicks, but the addition of elbow strikes and knee attacks. It is the national sport of Thailand along with being one of the styles favored in MMA for its use of the clinch and sweeps. If you're looking for real life, applicable, high level striking skills for self-defense or combat sports, Muay Thai is for you.



Burn calories, improve footwork, and increase hand-eye coordination learning "The Sweet Science" from our skilled trainers. Whether your goal is to earn a world championship belt or simply lose few inches off your waist, our boxing class will give you the highest confidence both inside and outside of the ring.



Fast Track is a unique mixture of cardio and resistance training that utilizes sports training exercises to help you lose weight, tone muscle and improve your coordination. As an alternative to outdoor boot camp classes, Fast TrackSM gets results, whether you have fitness goals or want to increase your sports performance.



Power TrackSM is an instructor-led, weight-training group class developed by X3 Sports. Using a variety of exercises derived from three basic lifts—bench press, squat, and deadlift—certified strength conditioning instructors closely supervise you to ensure correct form and technique. This class promotes muscle confusion and cognition, which aids in losing body fat and increasing lean muscle mass.

With over 500 classes per month at each location, X3 Sports has a class convenient for everyone’s busy schedule. Instructors are hands-on to make sure you are learning and building confidence while experiencing a great workout.

With two locations in Atlanta, GA (Inman Park / West Midtown), one in Marietta, one in North Marietta, and one in Athens you can attend all four locations experiencing different trainers and meeting new people all while keeping the same dedication and motivation.


Try out one of our classes and see what you can accomplish.