MAXIMIZING ATHLETIC POTENTIAL
Welcome to RanierFit Performance & Recovery
OUR MISSION
At RanierFit, our mission is to redefine what it means to train like a professional. We deliver concierge-level personal training and wellness solutions built around the needs of high-performing individuals, doctors, lawyers, executives, and entrepreneurs who value precision, efficiency, and measurable progress.
We believe that elite results come from individualized attention, scientific programming, and a commitment to excellence in every session. Our goal is to help clients build strength, resilience, and longevity so they can perform at their best in business, in life, and in health.
Ranier Agustin is one of Charlotte’s most trusted personal trainers, known for delivering premium, science-backed fitness experiences for the city’s top performers. As the founder of RanierFit, The Barbell Club, and The Trainer Collective, he specializes in concierge-level training for doctors, lawyers, entrepreneurs, and executives who expect precision, privacy, and proven results.
With a reputation for professionalism and results, Ranier’s approach blends elite-level strength training, nutrition guidance, and lifestyle optimization to help busy professionals look, feel, and perform at their best both inside and outside the gym.
Recognized by the National Minority Supplier Development Council (NMSDC) as one of the nation’s Emerging Young Entrepreneurs, and featured on WCCB Charlotte News, Ranier has become a respected authority not only in fitness and performance coaching, but also in business development and mentorship. Supporting both high-performing clients and fellow coaches in building sustainable, results-driven practices.
RanierFit Feature on WCCB Charlotte
Our Director of Performance & Recovery, Rain was given the opportunity to appear on News Channel WCCB Charlotte for a fitness demonstration. Check out the Segment here!
Background & Accolades
Selected as an NMSDC Emerging Young Entrepreneur
Director of Athletic Performance & Recovery for Team Curry UAA
(Stephen Curry’s AAU Basketball Program)Trusted performance coach and recovery specialist for NFL, NBA, and professional athletes
Former Head Strength & Conditioning Coach for championship-level programs, with teams competing in and winning NCISAA State Championships
(Men’s & Women’s Basketball, Volleyball, Softball, Soccer)
Current performance coach for multiple NCAA Division I athletes
Bachelor of Science in Exercise Science, University of North Carolina at Charlotte
ACSM Certified Exercise Physiologist (EP-C)
Performance & recovery partner with leading fitness and sports brands, including Solidcore, PPA (Professional Pickleball Association), UltraHuman, BlazePod, Ancore, and other performance-driven organizations
Testimonials
-
![A man lying on a workout bench lifting dumbbells with both arms in a gym, with another man sitting on a nearby bench, listening to music and holding a dumbbell in his right hand.]()
I found Rain through a Google search for mobility training because I'd reached a breaking point from dealing with low back pain for too many years. My goal was to make a financial, and time, investment into finally fixing my back because I've always hated gyms and wasn't disciplined to consistently work out on my own. But after working with Rain for the last 6 months, I've gotten so much more than a quick fix for my back. His passion for sports science, health and wellbeing, and the success of his clients is contagious. I'll be 42 this year and this is the first time I've worked out 5 days a week in my life. I love Rain's philosophy of "leaving the gym feeling better than when you arrived" and that's been true for my experience. We started just a few days a week and he took the time to understand my goals and my back pain. Six months later and he still invests the same attention to detail with me in our sessions. I've got two kids under five and I really want to be as healthy and active with them for as long as possible and I'd love to get back to playing basketball again while I still can. I'm not where I want to be yet but I'm also the strongest I've been in 20 years. But most importantly, I've gained the confidence and motivation to keep going. Rain's customized offerings are also a huge factor in my growth. He's always created packages for me that fit around my work travel and family commitments. His app allows him to continue creating custom workouts for me that I complete at home and our inperson sessions at the gym are opportunities for coaching and tailoring the coming weeks virtual workouts. I'm so happy with this investment and I'm looking forward to continuing for as long as I can.
Travis
-
![A woman doing a step-up exercise while holding a weight plate in each hand at a gym.]()
I honestly can’t say enough great things about Rain and how he trains. I’ve had trainers all over the country, and the way he translates things is the best I’ve experienced. He explains why we’re doing certain exercises and how they’ll get me the results I want in a way I can understand. I also have knee and lower-back issues, and he got me doing exercises I thought I could never do. He watched my form, corrected it, and my jaw literally dropped—it rewrote a decade of thinking for me. His style was exactly what I needed too. It’s not the hyped-up yelling type, but the perfect mix of motivation, explanation, and observation. It feels like you’re talking to a friend, and as a woman I never felt uncomfortable. He’s professional, fitness-focused, and provides a high-end experience. Everything was tailored to me and my goals, and he even worked around my crazy schedule (sorry Rain lol). He factored in my job, athletic history, and past injuries—things I didn’t even realize affected how I performed. I truly had an amazing experience and I’m so sad I’m moving. Finding a trainer like Rain is not easy—I’ve lived in over 12 states lol. I don’t normally leave reviews, but I wanted to leave this one in case it helps anyone trying to start or get back into a routine. I was in a rut for over five months, and he helped me feel like myself again. I’m extremely grateful.
Laura
-
![Woman performing a lunge exercise on a yoga mat in a gym, holding a weight plate overhead.]()
Ranier was the trainer that I had been looking for years. He challenged, inspired, and uplifted my training every session. Best of all, he wasn't intimidated to be working with another movement professional. Ranier has a strong education backing up his extensive experience in personal training. He is capable of offering modifications for one's physical limitations. He is able to give great workouts that are appropriate for the individual he is training. He doesn't shy away from the physical challenges that you face, but finds a way to help you get stronger despite them. He is very consistent (which can be hard to find in the training world), professional and kind. Would highly recommend.
Alissa
