I cant say enough about Clavin. To start, the facility and equipment is top notch, clean and well maintained. The workouts are fun, different each time, and most importantly challenging. I have been working with him for about 6 months and am in the best shape I have been in since I was a college athlete. I would recommend to anyone and everyone!

Boxing classes with Calvin are always fun yet challenging. He is very knowledgeable and I’ve seen major improvements in my fitness while working with him. Highly recommend!

Calvin is 1st class. A great coach that really knows boxing. I had never boxed before, Calvin made it really easy to learn. On time, everytime. Great gym!

Went in for a trial today, and signed up for more right away. Calvin was good at gauging my experience level, and working with me from there. Right away he was able to spot intricacies and gave pointers to improve. I could tell he was a real professional and felt very comfortable working with him. The prices were very fair, and he laid out the structure to the training which I loved. Look forward to working with him more in the future, and encourage everyone to at least give it a try!

Best trainer out there. If youre looking to learn how to box this is the guy to see. Calvin will teach you the proper and right way. Not only has he taught me how to box but how to push through when Im ready to give up. Its real work over there, and Ive become obsessed with every second of it. Go check him out! 10/10

Calvin is a great coach and helps my son push his limits. He helps motivate him and he really offers a great workout. 10/10 would recommend!

Calvin is an awesome coach. He teaches technique and focus but also makes hard work fun. I actually look forward to my weekly sessions!

I started taking lesson last March.Calvin is a great trainer. I am learning how to actually book and not just throw punches. If you are in Leesburg highly recommend ultimate fitness. 10/10.

Calvin has been the best trainer for I and my wife. Not only does he offer a perfect mix of functional and boxing training, he keeps on modifying and evolving each exercise routine, making it always challenging for the body. I was never able to achieve similar results by hitting the gym on my own. I needed to be pushed, encouraged and motivated which is exactly what Calvin brought to the table. I will highly recommend Calvin for individual or couples training.

Ultimate Fitness Boxing is the place to go if you want to challenge yourself to be the best you can be. I have tried every tried every type of gym/workout class and nothing beats a one on one session with Calvin. The mental and physical workout from boxing always helps me walk out feeling my best. Calvins knowledge of boxing teaches the fundamentals if you are a beginner and helps you advance as your skills progress. You cannot beat learning directly from a pro. Strength training and nutritional advice are also available to ensure you maximize your results.

Calvin’s coaching when it comes to boxing is definitely amazing! He pays close attention to the details and actually breaks down the concepts behind the sweet science. I highly encourage anyone who’s looking to get into boxing or just fitness in general to give it a shot. You won’t be disappointed!

Continually providing a really good workout while learning to box as well

Teaches great technique and pushes you beyond your limits.

Clean facility. Constantly renovating. Friendly staff. Ive been coming to this gym for a few years now and love the consistency. Great place!

I’ve had the pleasure of knowing Calvin for many years. He is professional, he pushes me when I think I can’t go any more! I like that each time we workout, it’s something different, something creative, something geared toward my goals! Calvin is one of the best personal trainers around!

Simply put, Calvin is the man. Whether youre a seasoned fighter or absolute beginner, he will work with you, challenge you, teach you, and force you to put in work. The sessions are split between technique and cardio, but each session leaves me dead on the floor, and pumped to get back for more work. Id recommend Ultimate Fitness to anyone looking to get pushed that extra mile.

I’ve been a client at Ultimate Fitness for about two years now and it’s the best personal training experience I’ve ever had. Calvin is knowledgeable and an excellent trainer to work with, while being personable and incredibly easy to get along with.

Committed to your personal fitness growth and completely adaptive and creative to your individual needs, you will NOT be disappointed in Calvin and your fitness improvement and performance.

Calvin is a fantastic trainer and my son looks forward to working with him every week!