Repeatable arm slot — stride length is leaving velocity on the table.
Solid Foundation
Overall Mechanics Score
AI-tracked frame from a real delivery.
Key Observations
- Consistent 3/4 arm slot across every pitch in this clip.
- Stride length is a bit short; more hip drive means more velocity.
- Balance point holds steady through the leg lift.
Metric Breakdown
3/4 slot repeats within a tight band across every pitch in this clip.
Stride finishes short of target, capping ground-force transfer.
Leg lift holds a stable center of mass before the drive begins.
Release height varies by less than 2 inches rep to rep.
Arm deceleration phase is slightly abbreviated — worth monitoring for durability.
Detailed Analysis
Arm slot is a real strength here — a 68° release angle repeating within a tight band is a sign of a durable, coachable delivery. The clearest opportunity is stride length, which is finishing short of the target range and limiting how much ground force gets transferred into the pitch. Because the arm mechanics are already sound, this isn't a rebuild — it's a stride and hip-drive project that should show up as added velocity within a training cycle, without introducing new timing risk to an already-repeatable arm action.
Recommended Drills
Balance-point holds
5 reps holding the leg-lift balance position for 3 seconds before driving forward. Builds a longer, more controlled stride over time.
Stride-length marker drill
Place a rope or line at target stride distance and drive to it every rep. 4 sets of 10.
Med-ball rotational throws
Build hip drive power that transfers directly into a longer, stronger stride. 3 sets of 8 each side.