
Looking for a Personal Trainer Centennial Co? FIT 303 Personal Training is a Private Personal Training Fitness Studio offering 1-on-1 personal training and small group personal training. Work with Coach Justin and get the results you want.
We offer a unique training experience for clients who hate gyms but want to get results. What we learned was that people love the 1-on-1 Personal Training attention and the privacy of the studio environment.
Your Personal Trainer

Coach Justin is your Coach and Personal Trainer at FIT 303 Personal Training in Centennial CO. He is a Master Personal Trainer and Nutrition Coach with over 20 years of experience. He is your Personal Trainer Centennial Co!!
Personal Training and Coaching Services
We offer several personal programs to give our clients a total coaching experience.
This includes:
- 1-on-1 Personal Training
- Small Group Training (partners, spouses, co-workers or friends. Max 2 trainees per session)
- Nutrition Coaching
- Progress Tracking
We take a 360 degree approach to give each client the best tools possible to enable success.
How it works
To get started it is simple:
1 Contact Coach Justin
2 Set up a Fitness Consultation
3 Start your Fitness Journey
Let’s Do This

To get started! Contact Coach Justin and set an appointment with yourself to get results.
Client Success Stories
Everyone has a different story. Here are just a few from some of out clients…
Chris, 53

After saying enough is enough to the pandemic weight gain, Chris was ready to make some serious changes.
“I was ready to stop looking like a potato!”
Chris says he likes our sensible approach to fitness and weight loss. We take it one step at a time and don’t over do anything, because that is when people lose focus and quit.
Together we continue to work hard and stay on target. Congratulations Chris!
Ann, 43

Knowing that it was time to get in shape, my condition was confirmed by a Doctor’s visit. The prognosis was not good: I was developing fatty cysts around my organs, and I was walking the road of diabetes. The Doctor’s recommendation; hire a Personal Trainer and get in shape.
After training with Justin, I lost 30 pounds in 3 months and received a glowing report from my Doctor. Now, fitness is part of my life and I look forward to staying in shape for a lifetime.
Ben, 28
Justin has been my personal trainer for about about 2 years now and couldn’t be more satisfied with my progress so far. I’ve hit fitness levels I’ve never had before, as well as gained helpful knowledge with his form and function practice. I look forward to using what I’ve learned to continue my journey into health and strength.
Justin makes sure everything is done properly and safely, and explains exactly why so you can understand without being left confused. He also teaches a variety of different exercises to target different muscle groups. I always leave feeling accomplished and know I’m making big progress with my fitness goals. Justin will set you on the right path whatever your goals may be.
Janel

Justin adds just the right mix to get you to your desired results. He is incredibly consistent and really takes the time to understand your goals and work with you to achieve those goals. I was looking for something where I could still get the cardio and weight lifting workout without the damage I was doing to my joints with intense exercise classes.
It’s truly amazing to see the same results I’d get in a group exercise class with a more focused approach from Justin. He also has incredible insights with regards to nutrition and overall wellness.
Justin is great with accommodating a busy schedule. He’s flexible and will work with you on times that suit your schedule. I can’t say enough great things about Justin and his approach to your personal wellness and fitness. You won’t be disappointed!
Kelly
I have been working with Justin for about 4 years now. I wish there were more stars to give. Five is not enough! Justin is fantastic. It is always the perfect mix of variety, challenge, and fun. The encouragement is so uplifting. I am doing workouts at a seasoned age over 50 that surprise me.
You will not be disappointed. Even bad days are better w/ a good Justin workout!
Coach Justin is the Best Personal Trainer Centennial Colorado!
Get Started