Winfield Pitching x MARR STRENGTH®
Tyler Winfield develops the arm and the delivery. MARR STRENGTH® delivers the training system underneath it: the hips, spine, shoulder complex, balance, coordination, and workload capacity that help pitchers express more and sustain what they build.
Why this exists
Velocity is not just an arm problem. It is a system problem.
Pitchers need to organize force from the ground, through the hips and spine, into the shoulder and arm. When that chain is disconnected, athletes can still throw hard for a while, but they usually leak force, lose command, feel tight, or struggle to sustain output.
MARR STRENGTH® does not replace Tyler’s mechanical work. It supports it by giving the athlete a better physical foundation for the mechanical changes to stick.
Baseline organization, awareness, balance, and movement quality.
Better connection from the hips and spine into the shoulder complex.
The ability to sustain quality movement under stress, load, and fatigue.
Choose your path
Both paths support Tyler’s pitching development work. Pick the one that matches the athlete’s schedule and how hands-on they want the process to be.
Path 01
Best for pitchers who want access to the BoxMatrix app, foundation work, Shoulder Matrix work, and AI coach guidance while continuing to work with Tyler.
Path 02
Best for athletes who want hands-on coaching inside MARR STRENGTH®. Start directly with a plan or begin with Chad’s 90-minute Initial IMR Evaluation.
Inside the app
The shoulder does not live by itself.
MARR STRENGTH® uses the Foundation Program to establish the baseline. BoxMatrix develops coordination, balance, stability, mobility, and workload capacity. Shoulder Matrix builds on that foundation by connecting the hips, spine, scapula, and shoulder complex together.
The starting point for organization, control, and repeatable movement quality.
The core system for unilateral control, hip-spine connection, and force transfer.
Shoulder-focused training that still respects the full chain.
Program preview
This is not the whole program. This is a quick look at the kind of foundational work athletes can expect inside the app.
Designed to wake up the system, connect the hips and spine, and prepare the body for training, throwing, practice, or competition.
Southlake training
Athletes can start directly with a monthly recurring plan or begin with the Initial IMR Evaluation with Chad Marr.
Low-frequency consistency for athletes balancing pitching, practice, and school.
Start PlanRegular weekly training with more support and a stronger development rhythm.
Start PlanHighest-access training option for athletes who want the most consistent environment.
Start PlanMonthly recurring training plans are billed monthly. Credits do not transfer.
Optional first step
A 90-minute evaluation and intramuscular release session with Chad Marr. This gives the athlete deeper insight into where the body is restricted, disconnected, imbalanced, or not coordinating well.
After the evaluation, staff notes are used internally to help guide what the athlete needs to emphasize in training.
