What Athletes Get

 

Monthly Mechanical Analysis

Submit video from the side and behind for a full breakdown of your delivery. The goal is to identify what is limiting velocity, command, and efficient movement.

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Custom Throwing Program

Your program is built directly from your assessment. Each throwing day includes:

• Specific drills

• Rep structure

• Intent levels

• Weighted ball recommendations

​Everything is clearly defined so you know exactly what to do each day.

 

Daily Readiness Tracking

Before each session, complete a quick check-in covering soreness, energy, sleep, and workload.
This ensures your training adjusts to how your body actually feels — not just what’s written on paper.

 

Bullpen Tracking

Log bullpens inside the app to track:

• Pitch location

• Miss patterns

• Command trends

• Velocity

Over time, you’ll gain a clear understanding of how you actually perform, not just how you think you perform.

 

Constraint-Based Throwing Drills

Instead of overloading you with mechanical cues, 4APP uses constraint-based drills that naturally guide your body into more efficient movement patterns.

 

Who This Is For

4APP is built for pitchers who:

• Want a structured throwing plan instead of guessing

• Are serious about improving velocity, command, and arm health

• Can train independently and stay consistent

• Want detailed feedback from an elite pitching mind

• Need a clear plan between in-person training sessions

 

How It Works

1. Sign up through Strike Zone

2. Download the 4APP app

3. Complete your athlete profile and daily readiness check-in

4. Submit your throwing videos

5. Receive your mechanical breakdown and custom program

6. Follow the plan, log your work, and reassess monthly