
Performance coaches have more information than ever.
Velocity. Power. Force. Timing. Video. Practitioner observation.
The challenge is no longer simply collecting evidence.
It is deciding:
• What does this evidence mean for the athlete—and what should happen next?
A metric can tell a coach what happened.
It does not automatically determine whether the athlete needs to:
• stabilize performance
• adapt it to changing demands
• develop higher output
• or restore previously established performance
That requires developmental context.
Before collecting data, the coach needs to know what the session is intended to develop.
EVZ organizes that intent around:
• Retention → Transfer → Output → Re-attainment
This creates a reference point for interpreting what follows.
Capture the Right Evidence
• Different training environments require different evidence.
Observation
• Structured practitioner assessment when technology is unavailable, unnecessary, or incomplete.
Technology
• Objective performance data such as velocity or power.
Hybrid
• Objective data interpreted alongside practitioner observation.
Different evidence. One developmental framework.
The important question is not simply:
• “Was the number good?”
It is:
• “What does this pattern suggest about the athlete’s current developmental priority?”
RPI™ can provide a retention/repeatability signal.
EVZ Wave™ can examine how performance responds across changing demands and whether an established profile can be re-attained.
The Development Profile places those findings within the broader athlete-development picture.
Evidence becomes useful when it changes what happens next.
A coach may decide to:
• Maintain the current emphasis
• Adjust the demand
• Progress development
• Re-attain previously established performance
That is the transition from analytics to coaching.
The final question is:
• Did the decision work?
Longitudinal tracking allows the coach to compare intent, evidence, interpretation, recommendation, and subsequent performance over time.
The process becomes:
• Intent → Evidence → Interpretation → Decision → Outcome
EVZ does not replace the coach’s programming system.
It provides a structured layer for understanding what the athlete is showing and deciding what should be emphasized next.
Technology organizes the evidence.
EVZ provides the developmental logic.