8:30AM - 7PM
4586 N 95th St, Lafayette5AM - 5PM
12005 N Pecos St, Westminster“I have been going to Nutri Fit for almost 2 years and have felt at home since day one. Leslie has always listened to me and helped me with my health goals. The extra nutrition classes are always educational and yummy! Anyone looking for a small boutique-like gym should definitely check out Nutri Fit - you will not be disappointed!“
8AM - 8PM
10385 Gaylord St, Thornton“Did great work on my headlights, they were muddy and yellowed before and are now completely clear.“
8 - 11AM
14340 Lincoln St, Thornton“I’ve been to gyms, Orange theory, kickboxing etc., but nothing worked like F45 and kept me as motivated. Tomorrow will be my 100th class and I’m looking forward to more. Thanks for having a great studio, amazing people and a fitness program that sticks!“
8AM - 12PM
475 W 115th Ave #3, Northglenn“Coach Jennifer and Patrick make the environment very welcoming! You can tell they truly cultivate community and the support and knowledge from the trainers are the best!“
Open 24 today
651 Mitchell Way, Erie“Great gym, very clean. Would like to see more plates because sometimes it is a struggle to find 35lb plates, and a dedicated calf machine.“
6AM - 6PM
2861 W 120th Ave Ste 100, Westminster“Great location and wasn't super busy. Day passes available.
If you are traveling is a great choice.“
7AM - 7PM
1 Superior Dr B, Superior“PT Josh has been amazing. Our son has been training with him this past hockey season. We have noticed a significant improvement in strength, overall physical presence on the ice. Josh is easy to work with, and connecting the training to in sport goals. Highly recommended.“
6AM - 3PM
5105 W 120th Ave, Broomfield“I love this place. The ~ 7:30 am crew is always my hype. ( they are kind and their welcoming energy really helps get my workout/ day started). Good vibes from all the employees and the gym really has everything I could possibly need.“
8AM - 12PM
9975 Wadsworth Pkwy Unit M2-A, Broomfield“I’m so grateful we found Strength to Strength. The trainers here are incredibly knowledgeable—each one brings a unique gift for helping young athletes grow. I have three sons, ages 12 to 17, and every one of them has benefited both mentally and physically from training at this facility.
They’re not only building strength and endurance, but they’re also being genuinely inspired by the men who coach them. This kind of investment isn’t inexpensive, but I tell people all the time: I would give up a lot of things before giving up this. It’s hands down the best money we’ve spent on our kids.“
Closed today
6395 Gunpark Dr STE A, Boulder“I've had an amazing journey working with Ross! His deep knowledge of exercise science and body biomechanics is exceptional, and his keen eye for detail makes all the difference—especially when it comes to problem-solving long-standing movement patterns.
As a Chiropractor with extensive experience in personal training and physical therapy, I came in with a solid foundation of knowledge—yet Ross continually expands my understanding. I learn something new in every session, and I always leave feeling inspired and better equipped in my own work.
If you're considering working with Ross, I can confidently say: you will not be disappointed.“
9AM - 12PM
9975 Wadsworth Pkwy #1900, Westminster“We train people in Sambo, jiujitsu, MMA and Soviet inspired strength training with multiple full weight rooms.“
7AM - 12PM
3700 W 144th Ave D700, Broomfield“All the staff are super friendly and encouraging. I am amazed at what a good workout I can get in just 20 minutes. Even when I don’t want to go, I tell myself it’s just 20 minutes and get myself to go. Both my husband and I have better muscles now than we did with a personal trainer.“
6AM - 3PM
8601 Sheridan Blvd #500, Westminster“A great gym that has amazing staff, clean and top notch workout equipment and a welcoming atmosphere to workout in.“
“My son has been attending this place for nearly 2 years by now. We absolutely love it! He enjoys it each class and always wants to come back. Owners create family atmosphere and care for kids. They teach them respect, responsibility, how to be organized in addition to physical skills. Thank you!“
6AM - 5PM
5603 Arapahoe Ave #5, Boulder“I've used over a dozen various trainers in Boulder County. Matt H & Petra are by far the best trainers from the bunch. I would highly recommend them for anyone looking for results.“
“Matt was an amazing therapist. He listened well, had great deep pressure, and I left feeling great. Highly recommend him!“
6AM - 3PM
650 E 102nd Ave, Thornton“Good gym, let's of amenities, like steam roon and sauna room, swimming pool and jacuzzi“
6AM - 8PM
4650 W 120th Ave Unit 1, Broomfield“The gym is always nice and clean. The young lady with the dark hair who is usually there in the late morning does a wonderful job. I have seen her cleaning the footrests on the equipment, dusting the letters on the wall, and taking her time to make sure everything is done right. She always has a smile on her face and is so pleasant. She always says hello to my husband and me.“
“I have been working out with Chad and his team for over 4 years. I experienced back pain from the age of 32 until I started working out with Chad at 60 plus years old. His program really got rid of my back pain and the life limitations I experienced a few times per year when my nerves would get inflamed. I no longer experience anything like that. I will turn 65 in a few days. I feel like I am the fittest I have been in my life. That says a lot coming from someone that ran and worked out his entire life. The key was the core exercise that he helped me understand. Now I can do almost any exercise. It changed my life. I work out 4 days per week and have no intention of stopping. His program can help anyone with any level of fitness. He changes the workouts daily and tailors them to your needs. The investment in my health has been worth it. Check it out. It just may be the best thing you will ever do for yourself. Al Manzi“
“I had such an incredible experience here. The staff was super friendly and welcoming from the moment I walked in, making me feel right at home. The facilities were spotless and everything was so well-maintained, which is honestly hard to find. It was the perfect spot to get some work done and find some focus for my day. I'll definitely be coming back again soon.“
7AM - 7PM
1347 E South Boulder Rd, Louisville“Great gym with lots of machines. I haven't found one that was missing that i normally use. Some PF have older showers or dirtier equipment, but this one is pretty new and well kept. The only thing I dont like is that it isn't 24/7 or open earlier so I can get to the gym before work at 6am. I understand there are different tiers of PF, so I think they need more members/activity before they open 24/7.“
7AM - 7PM
16511 Washington St, Thornton“I actually had a great experience at this place. Noah was such a great front desk guy and had great charisma and personality. There's others that I've come across that have been nice or subpar but Noah had a very amazing personality. Very helpful and created great experience!“
7AM - 6PM
505 Thunderbird Dr, Boulder“love the sauna and amenities at this location. compared to other places, the sauna is a great size and is so relaxing, it's a huge part of my life to deal with everyday stressors!“
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“Testimonial for Coach Janet
I’ve been working with Janet on and off for over 13 years, and I can honestly say she has transformed my running. When we first started, my running was very casual, and she helped me connect with my core and learn how to run in a more grounded, efficient way. A few years ago, I increased the intensity of my training and began ultra running. As I made that transition, I struggled with recurring injuries, especially from over striding. Janet helped me not only recover but completely rebuild my form—teaching me how to maximize my stride without overstraining or pounding my body.
Thanks to her expert guidance, I’ve now been injury-free for over a year while running 95 miles per week. I completed my first 50-mile race and won my first 100K at the Mad City Ultras last spring.
Janet has a rare gift for seeing exactly what a runner needs to do to improve their form. While she’s incredibly detail-oriented and focused on the fine points that enhance performance, her insight goes far beyond the physical. She works with you on the mental and emotional levels too—and on how all three interact and show up in your running. She’s remarkably perseverant and creative, always finding new ways to help you make meaningful, lasting changes. I can’t tell you how many different ways she’s reminded me to engage my core!
As a former elite ultra runner herself, Janet knows what it takes to stay strong, push your limits, and maintain balance. She brings that deep, lived experience to every coaching session. Whether it’s learning to use terrain more effectively or building a lifestyle that supports and sustains your running, Janet sees and supports the whole picture.
Because of the tools Janet has taught me, I feel much more confident in my body and in my ability to run through challenges. Her coaching has helped me build not just strength, but resilience. I’m incredibly grateful for her help and guidance—and I can’t recommend her highly enough.
Amber Arvidson, winner of the Duke City Marathon 2023 and the Mad City 100K 2025“