Fitness Training Gym In Scottsdale, AZ

Small Group Classes

30 min LIFT - muscle-building strength training,
30 min BREATHE - VO₂ max and endurance-building cardio.

Personalized Coaching

Daily high-energy classes with expert coaching as well as lifestyle, food, and habits coaching so you succeed in and out of the gym.

Smart Technology

First-of-its-kind proof360 Assessment that’s simple, fast, and insight-driven, and real-time progress tracking to visualize your efforts.

this is an image of two proof3 member apps, one showing the prf score and the other showing scheduling as well as a photo of two proof3 members training

Results That Go Beyond the Workout

Build strength, boost endurance, and connect with a supportive community. Then take it further with personalized support for your lifestyle, nutrition, and recovery, so your progress lasts well beyond the gym.

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Classes That Work for You

Get the best of both worlds: workouts that challenge without burning you out, plus expert coaching in a fun, focused environment. Our small-group classes are personalized, data-informed, and filled with like-minded people who show up for themselves and each other.

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Progress You Can Actually See

We don’t just tell you what’s working - we show you. From InBody scans to movement assessments, strength and power tests to wearable habits data, your progress is tracked in real time. It’s proof of how far you’ve come and a plan for where you’re going next.

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Personalized Coaching

Our coaches guide your workouts and your entire wellness journey. From daily support on the gym floor to one-on-one coaching around your lifestyle and nutrition habits, they remove the guesswork so you can stay focused, motivated, and on track toward the results that matter most to you.

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Tech That Makes Training Smarter, Not Harder

Our app is designed to support you, not overwhelm you. It tracks your progress, gives you clear insights, and tells you exactly what to do next. No second-guessing, no confusion - just smarter, more confident training with seamless coach connection.

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A Gym That’s Clean, Focused, and Built for You

We’ve created a space where form meets function in a bright, welcoming environment where every detail supports your success. Whether you're lifting heavy or just getting started, you’ll feel right at home in a gym designed to help you move with purpose.

Get Started Now

Ready To Get Started?

STEP 1

Complete Your Assessment

Take the proof360 assessment and review your personalized prf score with your coach. You’ll leave with a clear, data-backed starting point for your fitness and wellness journey.

STEP 2

Start Making Progress

Join weekly small-group sessions, connect regularly with your coach about your training, lifestyle, and nutrition. The program evolves with you, so you’re always making measurable progress.

STEP 3

Reassess. Refocus. Repeat.

Quarterly check-ins help track your progress, update your prf score, and adjust your plan to stay aligned with your goals. No matter what life throws at you, we’re here to help keep you on track.

How We Prove Results

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Clarity That Drives Progress

In today’s data-overload world, most fitness programs give you numbers but not meaning. That’s where proof3 is different. Your proof360 assessment gathers everything we need to know about how your body moves, performs, and recovers.

Then our proprietary AI condenses that data into a single, actionable number: your prf score™ (Performance Readiness Factor). It’s your personal health baseline and the foundation of your training plan. It takes just minutes to complete and helps your coach personalize your fitness roadmap.

This image is of a proof360 assessment report showing the prf Score, the Body Score, and the Strength Score + their insights and recommendations

Body Composition: InBody Scan

Muscle, fat, balance, visceral fat, cellular health. We look much deeper than a typical body scan. Using the gold-standard InBody technology, we measure what really matters, then track how your body is progressing over time.

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Movement: Computer Vision Assessment

Mobility, flexibility, and joint stability are critical to long-term performance and injury prevention. Our four-minute computer vision assessment quantifies how you move, so we know where to focus to keep you strong, fluid, and pain-free.

An image of an iPad inside of the proof3 Salt River gym in Scottsdale, AZ. Its relevant because the iPad is what houses proof3's movement assessment that's conducted with computer vision technology that proof3 uses to measure its members strength and power as part of the proof3 Pulse Assessment

Strength & Power: Proteus Test

Strength is a leading predictor of healthspan. Our Proteus test doesn’t just guess; it gives you a Power Age Score that shows how much force you generate and where you need to build. Then we help you train the right muscles, the right way.

A tranparent background image of the Proteus Strength & Power Machine that proof3 uses to measure its members strength and power as part of the proof3 Pulse Assessment

Lifestyle Habits: Wearable & Health Data

Steps. Sleep. HRV. Heart rate. Your daily habits outside the gym matter just as much as what you do inside. We connect to your wearable(s), track your recovery, and give you actionable insight into what’s working and what’s not.

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Customer Success

Hear what our clients say about us...

I feel amazing about my progress at proof3. I work and have two children, so my time matters a lot to me, and knowing my coaches and program are outstanding is important. And, I LOVE training with the people at proof3. It's become a joy to be there!

Janice

proof3 is a great environment to workout and get healthier! I struggled for years to getting to the gym regularly, but proof3 has me motivated to return as many times a week as I can. In just a few months, I'm feeling better than I ever have, and I'm 50!

Brett

I wasn't even looking for a new gym, but when I tried proof3's assessment and then their classes, I fell in love right away. I have a 9 month old baby girl, and knowing that I am building strength and longevity brings me a lot of peace. You'll love it there!

Maggie

I've done plenty of fitness before, from CrossFit to training with a program on my own, but when I walked into proof3 I knew instantly that it was different. The coaches are fantastic, the classes are challenging but fun, and the technology is super cool!

Elena

I am a practicing chiropractor, and many fitness gyms ask me to try their gyms out, but I was blown away by proof3's assessment and coaching philosophy. I will be recommending proof3 to my patients for sure

Jarryd

proof3 Salt River Coaches

Carl Hardwick

Husband, father of two, Army Ranger Medic, pro football player, 10-time gym owner, global coaching educator, and CEO. When it comes to understanding how our bodies work, Carl is the best.

Jon Elms

Husband, father, weightlifter, esports athlete, wellness beverage owner, and nationally ranked West Coast Swing Dancer. If you need somebody with as much education as entertainment, Jon's your guy.

FAQ

Common Questions

Some of the common things people ask about proof3^TM

Learn More

How do I schedule an assessment?

There are a few ways you can book an appointment for an assessment:

1. Call us at 480-256-9966
2. Fill out the form in the section above and we’ll get you scheduled.
3. Go to proof3 Salt River on MindBody , look for our intro offers and select the assessment you want. If you do not already have a MindBody login, you will be asked to create one.

How should I prepare for my proof360 assessment?

Wear comfortable clothes and athletic shoes that you can move in. No sweat, no warm-up. Just show up and we’ll take care of the rest.

How long will I need to take the proof360 assessment?

Sixty (60) minutes total. The assessment itself takes about 30 minutes to complete. Then, reviewing the results with an experienced coach typically takes another 30 minutes because we want to make sure you understand what you can do to achieve your health and longevity goals, not just leave with another useless number in hand.

How often should I do a proof360 assessment?

We recommend you get a full proof360 assessment 2 x/yr. because strength gains can take a while to achieve. The InBody body composition scan (one of the four pillars of the proof360 assessment) can be done more frequently if wanted (e.g., monthly).

How should I prepare for my InBody body scan?

Wear comfortable clothes. Note, consistency is key: for tracking your progress, it's best to take InBody scans under similar conditions each time (e.g., have similar hydration levels, fasting state, and time of day to make results comparable.

How long will I need to take the InBody body scan?

Thirty (30) minutes total. The scan itself only takes about 5-10 minutes to complete. Then, reviewing the results with an experienced coach takes another 20 minutes because we want to make sure you understand what you can do to achieve your health and longevity goals, not just leave with another useless number in hand.

How often should I do an InBody body scan?

We recommend you do an InBody scan once a month with a coach to aid you in interpreting the results and developing your plan for the next 30 days.

The Gym That Trains Smarter