Do not diagnose a velocity loss from one radar reading. Start by checking context, recent workload, warm-up, intent, command, physical readiness, and whether the athlete has pain or unusual symptoms.
Check Measurement Conditions
Different radar devices, throwing distances, pitch types, mound conditions, and warm-ups can change the reading. Compare like with like before assuming the athlete has lost ability.
Review Workload and Fatigue
Games, bullpens, long toss, lifting, travel, sleep, and school stress all affect readiness. A short-term drop may signal that the athlete needs adjusted workload rather than more high-intent throwing.
Look at the Full Performance Picture
Changes in command, pitch movement, recovery, strength, mobility, and perceived effort can help explain what is happening. Video can show whether execution changed.
Pain Changes the Decision
A sudden velocity loss with pain, altered mechanics, numbness, or persistent symptoms should not be trained through. Stop and seek assessment from a qualified healthcare professional.