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Glossary

12 terms, defined in plain language.

4thCoach+
The paid plan: more analyses per day, the full pattern history, trends, and wins.
Analysis
What happens after you upload: 4thCoach watches the clip, identifies the sport and skill, and produces findings — usually in 30 to 90 seconds.
Casting / early arm extension
The throwing arm extends away from the body too early in the arm swing.
Clip
The full video you record or upload. 4thCoach analyzes the clip and pulls out moments.
Early hip rotation
The hips begin rotating toward the plate before the front foot lands.
Finding
One specific, coachable observation from a moment — what's happening, why it matters, and a cue or drill to work on it.
Glove side flying open
The glove-side arm pulls off target early during the delivery.
Head drift & balance
The head moves off the line to the plate during the delivery.
Moment
A short looping piece of your video that 4thCoach found worth your attention — the swing, the pitch, the kick. Every finding points at a moment.
Pattern
A finding that keeps showing up across multiple clips of the same player. 4thCoach tracks whether a pattern is still being watched, confirmed, fixed, or has come back.
Player
The athlete a clip belongs to. One account can hold several players.
Short stride
The stride toward the plate is shorter than the delivery needs.
Latest: August 7, 2026 — New Subscription Options for 4thCoach+ See all updates →

Made in Michigan by one person. iOS only. Priced to cover its costs.

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