What are the opening hours?

Monday 5am - 10pm Tuesday 5am - 10pm Wednesday 5am - 10pm Thursday 5am - 10pm Friday 5am - 8pm Saturday 7am - 5pm Sunday 7am - 5pm

Rocky Mountain Flex Fitness

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Denver, CO
Rocky Mountain Flex Fitness

Rocky Mountain Flex Fitness - Denver gym since 2015 with personal training and group classes 💪
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Rocky Mountain Flex Fitness was started in November of 2015 with 2 guys and a shared dream to change the way people see fitness, and offer the solution to the most difficult, frequent, challenging, and interesting questions people have about how to become healthy and fit. We have a passion for helping all people achieve their goals, whatever they may be, and are uniquely qualified with knowledge in over 20 different health and

lifestyle disciplines. We believe that great fitness is achieved from the inside out, and should be about more than just looking great in a swimsuit. It is our mission to use the medium of fitness to develop every person who walks through our doors into leaders and achievers who are equipped with all of the tools that they need to go forth and change the world.

09/12/2026

Join Team RMFLEX for Run the Rocks at Red Rocks Park & Amphitheatre on Sunday, October 11th! 🏃‍♀️🏃‍♂️

Whether you’re a competitive runner or just want to take in the course at your own pace, this one is all about the experience. You’ll take on the iconic Red Rocks stairs, hear live music along the route, and finish with food, exhibitors, and more on the plaza.

Best of all, every step supports the American Lung Association and its work to end lung disease and advocate for clean air.

Scan the QR code or link in bio to join the RMFLEX team or donate to the cause. We’d love to have a strong crew out there with us! 👊 https://runtherocks.lung.org/teams/12160

09/09/2026

The Wednesday morning HIIT class is looking strong! 💪 Join Coach Britt Brittney Sotherden in class tomorrow and every Wednesday at 6:30 a.m.

Her Full Body HIIT class is 45 minutes of strength, cardio, and conditioning that keeps you moving and works your whole body.

It’s a great midweek workout to get in early, and everything can be adjusted to your fitness level.

RMFLEX members, no sign-up needed, just show up! ClassPass members can reserve a spot through the app. 👊

09/02/2026

Labor Day hours and class updates 🇺🇸

Rocky Mountain Flex will be open from 7 AM–2 PM on Monday, September 7th.

Please note these class changes for the holiday:

• Britt’s Functional Turf class will start at 7 AM instead of 6:30 AM
• Evening Yoga will be canceled

We hope everyone has a relaxing Labor Day!

08/31/2026

RMFLEX Members Please Note: Tuesday, September 1st, the north parking lot entrance will be closed for an event from 5–9 PM. Please use the south entrance, located by Smokin’ Yards. Please help spread the word!

08/28/2026

Please note: Handstand + Mobility Class will not be in session on Tuesday, September 1st.

Jess’ class will return Tuesday, September 8th. We hope to see you then! 🤸 inverted.moments

08/27/2026

Please note that we have closed early due to an unexpected power outage from Xcel Energy. As of 7:45 PM on Wednesday, August 26th, we are closed. Thanks for understanding and we hope to see you tomorrow!

08/25/2026

RMFLEX Trainer Spotlight: Tom Terwilliger 🏆Performance Longevity Strategist.

We wanted to give a shoutout to longtime RMFLEX trainer Tom Terwilliger, who has been with us since the beginning.

Tom was recently named Mindset Coach of the Year by the Federation of Israeli Martial Arts (FIMA) and inducted into the United States Martial Arts Hall of Fame.

A former national bodybuilding champion and Mr. America titleholder, Tom also competed twice in the prestigious Mr. Olympia competition. Beyond bodybuilding, he holds a 1st Sash in Kung Fu and has been a longtime student of Kali, Pencak Silat and Jeet Kune Do under Sifu Ray Kahn and Guru Dan Inosanto.

Known as The Achievement Mentor, Tom is also a #1 bestselling author, international speaker and leading authority on the science of achievement. For more than 30 years, he has advocated for fitness, healthy living, mindset, and peak performance.

At 67, Tom remains active in the health, fitness, and martial arts communities while helping others pursue greater strength, health, and personal achievement.

Congratulations, Tom, on these two well-deserved honors!

08/19/2026

Coach Britt’s Monday morning crew has been showing up the last several weeks!💪

Her Hybrid Training classes on the turf are 60-minute sessions that combine strength and conditioning with cardio intervals to build strength, endurance, and stamina.

It’s a great class if you’re training for HYROX this fall or if you want to challenge yourself and switch up your training. Every exercise can be scaled to your fitness level.

Join Coach Britt Brittney Sotherden every Monday at 6:30 am. RMFLEX members, no sign-up needed, just show up! ClassPass members can reserve a spot through the app. 👊

08/14/2026

Please note: there will be no Handstand Class this Tuesday, August 18th.

Handstand Class will return the following week on Tuesday, August 25th.

And while you’re marking your calendar, there will also be no class on Tuesday, September 1st.

We’ll see you back for Handstand and Mobility with Jess at RMFLEX on August 25th! 🤸 inverted.moments

08/12/2026

Andy casually pulled 846 lbs at the 5th Annual Sunday Paper Classic on August 1st. 😮‍💨

And since August is Staff Appreciation Month at RMFLEX, this is your reminder to show our front desk crew some love too. We set up a Buy Me a Coffee page aka buy them a protein shake. If you’d like to contribute, everything is pooled and split among the front desk staff, and you can include a note with your gift. Link in bio.

No pressure to give, though. A kind word or quick thank you at the front desk means a lot too.

Big congrats, Andy. 👏

Address

900 W 1st Avenue Unit 150
Denver, CO
80223

Opening Hours

Monday	5am - 10pm
Tuesday	5am - 10pm
Wednesday	5am - 10pm
Thursday	5am - 10pm
Friday	5am - 8pm
Saturday	7am - 5pm
Sunday	7am - 5pm

Telephone

+17205506347

Website

https://rmflex.com/

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