WOMEN'S ONLY SMALL GROUP TRAINING
IN MESA, AZ
For the woman ready to make herself a priority again.
Reclaim your body, mind, and strength in our judgment-free small group strength sessions in Mesa, where you will finally feel comfortable in a gym and see real results
with your strength, energy, and physique.
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HEY, I'M HALEY
I'm the personal trainer and strength coach behind Onyx Athletic Performance. I help women get strong and confident without spending hours in the gym.
With over a decade of experience, my background in Athletic Training has allowed me to help hundreds of local women reduce pain, recover from injuries, and get in shape. I specialize in strength training for women who want to build a strong foundation, improve their health, and move with confidence. My coaching is tailored for those who are new to fitness or have felt intimidated in a traditional gym before.
When I'm not coaching, I enjoy Back to the Future marathons, getting strong AF, playing the electric guitar, and spending time with my husband and two daughters. I look forward to helping you start your journey!
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HAVE YOU TRIED
AND STILL
Orange Theory
Planet Fitness
EOS
Crossfit
HIIT Classes
Bootcamps
Didn't see results
Felt lost in a big class
Afraid of hurting yourself
Can't stick with a routine
Feel anxious and nervous in a gym
Confused about calories and protein
Introducing Our Signature
WOMEN SMALL GROUP STRENGTH TRAINING
Tired of high-intensity bootcamps and big-box gyms that leave you sore, exhausted, or lost in the crowd?
Discover Small Group Strength Training in Mesa, Arizona—tailored specifically for women who are ready to build lean muscle, protect bone density, and move pain-free. Whether you are navigating menopause, managing joint aches, or making yourself a priority again, we provide personalized strength coaching in a judgment-free gym so you can finally see real, lasting results without burnout.
Our gym is small and private, built around progressive strength training for women. We focus on what actually works—providing specialized, injury-aware coaching tailored for:
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(Peri)Menopause & Midlife Shifts: Women navigating perimenopause, menopause, and beyond who want to preserve lean muscle, build vital bone density, and get their daily energy back.
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Injury Recovery & Prevention: Women transitioning out of physical therapy, managing pre-existing joint aches, or seeking far more hands-on attention than a crowded bootcamp class can offer.
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Pain-Free Longevity & Weekend Warriors: Active women and recreational athletes looking to build resilient joints, prevent injuries, and stay strong for life.
In our Women's Small Group Personal Training Sessions, you'll:
✔ Get strong enough to crank out 10+ push ups in a row—starting from wherever you are today and building the real upper-body strength to unlock milestones you never thought possible (maybe even your first pull up!).
✔ Swap body fat for lean muscle through true body recomposition—watching your clothes fit better, your arms tone up, and your body reshape without getting trapped by the number on the scale.
✔ Make complete sense of your nutrition, knowing exactly how much protein your body needs so you can fuel your workouts, feel full, and stop guessing in the kitchen with included, customized nutrition coaching.
✔ Break free from the cycle of starting and stopping by building effortless, empowering habits that stick for good.
✔ Experience the joy of noticeable results that make close friends and family ask, "You look amazing and you're glowing! What are you doing?"
Because Onyx is a private, small-group facility, we strictly cap our enrollment to ensure every woman gets personalized coaching, form corrections, and individual attention. We are looking for women who are:
100% ready to prioritize their health & longevity and show up consistently for themselves.
Prepared to invest their time and energy into a proven process.
Finally ready to step outside their comfort zone and start making a real, lasting change.
If you’re ready to start your journey today, schedule your Personal Fitness Orientation below to meet with Haley. We’ll make sure we’re the right fit and build you a tangible plan showing you exactly how to hit your goals.
Intentionally Small. Driven By You.
What Other Mesa Women are Saying
“Haley is an amazing trainer. She truly cares about each person, pays attention to your form and progress, and knows exactly when to encourage you. Since joining, I’ve become stronger, more confident, and actually look forward to my workouts!” -R.N.
“I’m so happy I found Haley! For years, I struggled to find a gym I felt comfortable in and enjoyed. With Haley, I feel comfortable and empowered! And I’m seeing results quickly!”
-Molly P.
"I absolutely love coming to this gym, Haley is amazing! Everyone is so friendly and welcoming, and the training program really gives you a solid, effective workout. I’m motivated to show up for myself and can’t wait to see my growth! Highly recommend!" -Nalleli G.
READY TO GET STARTED?
PERSONAL FITNESS ORIENTATION
Your First Step to Reclaiming Your Strength and Confidence
Whatever your goal—whether it's building strength, eliminating aches, or finally sticking to a routine—your journey starts here. Come meet with Haley, your Mesa personal trainer to:
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Define your goals and what you are truly searching for.
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Figure out why you're motivated to start today.
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Reflect on what's been holding you back from accomplishing it.
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Show you EXACTLY how to reach your goal.
Ultimately, you'll walk out with a tangible game plan showing you exactly what you need to do to accomplish your goals and how long it will take you to get there.
Schedule your complimentary 60-minute Personal Fitness Orientation where we will get to know you, make sure we’re the right fit for you, and help you create a tangible plan for your goals!
WHERE WE ARE LOCATED
On the Southwest side of Alma School Road and US-60
Proudly serving women across Mesa, Tempe, Chandler, Gilbert, and the greater East Valley.
