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March 2023 by Kira Ekins
C4 has the best trainers around and they work so well with not only adults but young athletes! Highly recommend!
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December 2022 by Lenny Richards
My 2 boys have been going to C4 since it opened. Results have been phenomenal. My oldest started when he was 16 and gained 20 pounds and is a lot stronger and more physical. My youngest started at 12 he is 14 now, and the results are tremendous. Recommend for any athlete especially football. Don’t wait until they are 16 though that is my biggest regret, and why I started my younger son early.
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August 2022 by Chris Crim
Great atmosphere, great staff, great program. Coach Darin pushes to do better always, Coach Evan helped to stay functional and athletic, Coach Owen encourages strength and form with heaver weight. The results are impressive. Thank you team.
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August 2022 by Hugh Brown
C4 is by far the best training available for serious high school and college athletes looking to not just become bigger, faster, stronger, but also learn from the best trainers in the state. Charlie Chandler and his partner pour themselves into the young people that train there, it is incredible. I make my high school football team meet at our facility at 7:00 AM Saturday mornings in Fredericksburg, and then we caravan and drive over an hour to train in Manassas with coach Chandler and his team. We train relentlessly and what I've experienced at C4 is by far the best in the state. We get work, we get better, we get smarter, and we get coached up at a level you will not find anywhere else. C4 gets my highest recommendation.Hugh Brown. Head Football Coach and Chairman of the Board of Saint Michael the Archangel Catholic High School, Fredericksburg VA.
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August 2022 by Marvin Stith
My son has been a client for almost 1 year. He loves the coaches, the interaction with the other kids, and the training. Most importantly we see great improvement since he started. The coaches not only know and focus on what is important in the gym, but also what is important in life and pursuing goals.... Very happy with C4 and staff.
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August 2022 by DANIELLE STEVENS
My son and a few of his youth football teammates started attending C4 last year for strength & agility training. The young men not only improved with their overall athletic performance but their overall character showed improvement. Chandler, Coach Darren, and other trainers focus on the whole person not just the athlete. I highly recommend C4 and you will not be disappointed?CoreTactics Family
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August 2022 by Karl Schnurr
Where do you start with a review for C4? Well like Charlie Chandler does and that is at the foundation. He and his crew build you and or your athlete up from the ground up, just like an expensive car or home or an awesome family. You get the best long-term result by building a great foundation and then putting what you want on top of that. I can attest that our daughter, who is a professional international soccer player, has utilized his facility numerous times and been the beneficiary of that process. She also has appreciated the flexibility of Charlie and his staff of working with her on the specific things she needs in order to compete at the highest levels of her specific sport. There is no "one size fits all" at C4, though there are programs there for that if you want that. They build you to "YOUR" specifications and that is the key to you being successful. If you are going to put in the work, why not go to C4 where you will get YOUR max result for your investment (in time and money)! Last but not least, your mindset is key in getting the most out of a good workout, and that is where C4 excels.... "best positive workout experience", as quoted by my daughter. Well done Charlie for putting this training facility together!!! Best wishes for your long-term success!! And..... thank you and your team for always have a spot for Kristin when she is in town! You all are awesome!!
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August 2022 by Sarah C
C4 has reliable trained my team as a portion of our out-of-season activities for years. The team responds well to the coaches who push each athlete to work hard. The coaches are knowledgeable with regard to sport-specific training and consistently provided workouts that maximize each athletes full potential. I highly recommend C4 for either team or personal training.
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August 2022 by Roberto Arroyo
My kids come to workout, my oldest daughter went off to play D1 softball and was more than ready for the physically aspect of it all. The travels teams i coach over the years come to C4. My teams are mentally and physically ready to compete after a strong winter workout with C4. All of the trainers are invested to the athletes, they go the extra mile to make sure these athletes get what they need. And my 3 yr old will start coming to training as soon as she is ready. Let’s be honest. You’re either C4STRONG or not.
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August 2022 by Toby Lux
C4 is the place to be, period. After only 3 months, my son is bigger, stronger, quicker, faster, and better conditioned! And, we are not stopping any time soon. My son is also a better young man because of the C4 Team. Not only that, but if you are considering C4, your child will be around other legit athletes who come to work and that type of environment breeds greatness. They say that better training, makes better athletes. Well, at C4 it is Elite Training, with Elite Coaches. C4 has been the driving force for my son in developing muscle mass, maximum strength, and explosive power. Coach Brown has been instrumental in my son's life, first as a teacher, and now as his Coach at C4. Bottom line, I sent my son to C4 because I trusted them. I keep him there because they are Family, and neither I nor my son would be comfortable anywhere else! Like the sign says "Change Starts Here", so if you go there, you go to work! C4 is a no brainer, period.
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August 2021 by Alex Mason
Absolutely wonderful experience! These trainers truly are top of their class. I highly recommend this location for beginner and fitness training. Very organized, clean And great experience!
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February 2021 by Hiba A.
This is a fantastic gym!! All the trainers are super nice and take an interest in you no matter what fitness level you're at. I really like how they give me tips and tricks to get the most out of every workout. I've been going for a little bit and am already seeing a big change in my energy levels and body, also If your looking for a Plyometric training well this is a right place, My daughter is playing Ice Hockey and on her Weekly games she improve a lot on her speeding and strengths, so far she is the best Defenseman on her Team. Highly recommended Ps: this is the new address "9501 Discovery Blvd Manassas, VA 20109 United States"
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March 2020 by Rita P.
Absolutely love this place. If you enjoy going to the gym but end up not going for weeks at a time, you need to go here. If you were to know me, you would know I like my sleep. However, I love this place so much that I go to the 530am class to work around my son's schedule. I HIGHLY recommend this place. I challenge you to join a six week challenge if it ever happens again! (I'm pretty sure they post that stuff on Facebook so like their page so you don't miss it!)
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March 2020 by Scott Beamer
Been training at C4 for a year now and I love our 4:30 am crew. All of us have made big changes and continue to get stronger each and every day. Thanks to Charlie Chandler for all the time you put into all your clients. Stay strong!!!
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March 2020 by Kristine Jacks
I have been a part of the C4 family since September when I initially signed up for a 6 week challange. I have been to different gyms and training facilities but am so grateful I found C4. The time and care that Charlie and Tracy put into creating each workout and then coaching and encouraging you through it, is second to none. I have seen huge changes in my strength and abilities since starting. I enjoy the workouts and the family atmosphere at C4 and would highly recommend to others!!
