Train Like Your
Career Depends On It.
Miami's premier performance residency for high-achieving professionals.
Performance is 80%
Mental Architecture.
Most fitness environments focus only on the physical. THEFLOWSTASHON XTRM reverses this — building the psychological systems that make discipline repeatable before asking the body to execute.
The result is not just fitness — it's a personal operating system for sustained high performance. Built once. Deployed everywhere.
The psychology of discipline — building systems that make consistency inevitable.
Once the mind is structured, the body follows without resistance.
Not a 12-week program. A permanent operating system.
Two disciplines.
One system.
Tashon Marté
Co-Founder & Master Performance Coach | ATHX Games World Champion — 40+ Division
BS Exercise Science & Kinesiology · Pro Hybrid Athlete Champion
Tashon Marté is the ATHX Games World Champion in the 40+ division, representing the USA — proof that the XTRM methodology doesn't just build elite athletes, it builds the best in the world. Tashon Marté is a Pro Hybrid Athlete Champion and credentialed performance coach with a BS in Exercise Science and Kinesiology. A nationally recognized competitor, he has spent years studying how elite athletes build bodies that don't just perform — they endure. His training philosophy rejects specialization in favor of adaptability, which is why hybrid training is not a method he teaches but a discipline he lives. At THEFLOWSTASHON XTRM, Tashon is the physical standard. The proof of concept. Every program he builds is designed to develop well-rounded, resilient professionals who train with the same structure and intensity as the athletes he has competed alongside.
Carla Cid de Diego
Co-Founder | Master Behavioral Coach
BFA Design & Marketing · 20+ Years Business Development
Carla Cid de Diego is a Master Behavioral Coach with a BFA in Design and Marketing and over twenty years of experience building businesses from the ground up across industries. Bilingual in English and Spanish, she brings both the creative and strategic architecture to everything THEFLOWSTASHON XTRM delivers. Carla's work is rooted in a single insight: most people know exactly what they need to do — and still don't do it consistently. That gap between intention and action is her specialty. The 80/20 methodology at the heart of the residency is her design. She builds the mental systems that make Tashon's training sustainable — and turns participants not just into athletes, but into people who operate differently.
An 8-Week Performance
Residency.
Not a gym membership.
Application is required. Cohort sizes are intentionally small. This is not a gym you join — it's a program you earn access to. Every detail of the eight weeks is designed to compound.
Graduates transition automatically into Club STASHON X.
Curated Cohorts
Small groups of high-performing professionals — vetted, intentional, no exceptions.
3 Sessions / Week
Upper Body · Lower Body · Full-Body Hybrid. Progressive, structured, adaptive.
Full Session Architecture
Breathwork reset → Skill & strength → Hybrid performance challenge → Closing reinforcement.
State-of-the-Art Equipment
Every Residency cohort trains with Technogym — including a biometric check-up at the start and close of the program to track your transformation with precision.
Between-Session Support
Direct coach check-ins and a private cohort channel — accountability built into the architecture.
Weekly Achievement Tokens
Progress is recognized. Milestones are earned. The system rewards the work.
Every Weekend.
A New Mission.
STASHON X is a nomadic membership for high-performance individuals. No fixed gym. Every weekend, members receive a location reveal 24–72 hours in advance and gather for a curated fitness experience in an extraordinary Miami setting.
Members also gain access to the Secret Comms — an exclusive network connecting Miami's most driven performers.
Weekly Adventure Experiences
Kayaking, outdoor challenges, and curated experiences that extend performance beyond the gym.
Membership Tiers
Black Ops add-ons available for all members — Yacht Yoga, special activations, premium events.
Locked rate — first 20 members only
Exclusive alumni rate
This is what your weekends
could look like.
The first cohort is forming.
The Founding 20
are almost gone.
Both paths begin with one decision.
THEFLOWSTASHON XTRM · Brickell, Miami
Application required. Cohort sizes are intentionally small.