Who are you training for?
Adults
Coach-led strength, power and conditioning classes six days a week. First class free, then $199/month, or drop in.
Try a free class →Ages 10–18Youth athletes
Speed, strength and movement built on a long-term development model. Starts with a free 30-minute evaluation with a coach.
Book the free evaluation →High school to proCompetitive athletes
A force-plate assessment first, then an individual program run in coached sessions. Retested every block.
Start with an assessment →Onyx OnlineNot in Miami
The same app the Lab trains with, with programs, a recommended load on every set, your food and your week. $24.99 a month, the first seven days free.
Train online →Testing days, programmingTeams & schools
Testing days, group programming and reporting for a whole roster, run as your own space in our system.
Talk to us →Not sure? Answer two questions and we route you. Prices and what's included are on Memberships.
A SPORTS SCIENCE
PERFORMANCE
LAB.
Onyx Performance Lab is a sports science and coaching facility in Miami. We build individualized programs from your test results.
THE TESTING ARSENAL
Every Onyx athlete starts with a complete battery of performance tests. The data shapes the program. The program drives the results.
YOUR
NUMBERS.
Force Plates
Bilateral and unilateral force-time analysis. Identifies power deficits, asymmetries, and reactive strength capacity.
VBT System
Real-time bar speed tracking and load-velocity profiling. Train the right zone every session.
Sprint Timing
Laser-precise timing gates from 10m to 40m. Acceleration mechanics, max velocity, and deceleration assessment.
Metabolic Testing
Full aerobic capacity profile. Energy system diagnostics that inform conditioning and recovery protocols.
Anthropometrics
Body composition, limb lengths, and structural profiling to contextualize strength and power outputs.
Movement Screen
Systematic movement quality assessment to identify compensations, mobility deficits, and injury risk factors.
The Process
Test
Complete battery of performance assessments. Force plate, VBT, sprint analysis, and metabolic. No assumptions.
Analyze
Data interpreted in context. Benchmarks compared against sport, position, age, and athletic history. Gaps identified.
Program
Individualized training plan built from your results. Every exercise, intensity, volume, and sequence is intentional.
Train
Coached execution in a structured environment. Technique, cues, and real-time feedback on every rep.
Retest
Scheduled re-assessment every 4–6 weeks. Progress measured against baseline. Program updated based on new data.
The app you train with.
The app keeps six things about you, and each one reads from the others.
Train
A program chosen from your goal, experience and days, with a recommended load on every set and the reason beside it.
Recover
A morning check-in that explains its scales, and a recovery reading from your own sleep and heart rate after seven nights.
Eat
A diary that finds the product by brand, carries the vitamins and minerals, and explains any nutrient you tap.
Your sport
Practices, classes, matches, runs and walks in your week, with distance and pace, logged up to three months back.
Test
Lab results with your Onyx Score, and a home test day scored against published norms every six weeks.
Your week
A report every Monday, and a Progress tab that opens with your week and then your strength on every lift.
Every athlete
to one standard.
Build the Foundation
Long-term athletic development for young competitors. Age-appropriate movement, coordination, and strength training, structured so the athlete keeps developing through the teenage years.
What Athletes Say.
"Amazing improvement in my skills after training here. Would highly recommend. Great environment, absolutely loved it!"
"Onyx Performance Lab is perfect if you're looking for a more personal and laid-back atmosphere. The space is well-equipped with everything you need for a great workout. What really stands out is the one-on-one attention from Alex. He genuinely cares about your fitness goals and will work with you to create a plan that fits. The gym is clean and never feels overcrowded."
"If you're looking for a gym with great energy and top-notch support, Alex Garcia is awesome and always willing to help you crush your fitness goals!"
Before
You Book.
BOOK YOUR
FIRST
VISIT.
Every first visit is booked online, on a real time on the calendar, and confirmed by email with a calendar invite. You meet a coach when you walk in.
Before you come in, download the app and sign in with the email you booked with. Your check-in, your results and your program live in Onyx Performance OS.