Knuckle CurveArsenal Shape: Gloveside Drop
Δ HB -8.1in · Δ VB +0.7in
Current: HB 5.1in / VB -8.7in
Recommended: HB -3.0in / VB -8.0in
Optimization diagnostic / CLE
Gavin Williams
Gavin Williams's production (82) outpaces the tools grade (57) by 25 points. Primary finding: existing knuckle curve is present, but its movement shape does not currently cover the desired gloveside-drop window. Also flagged: Usage Overuse: Knuckle Curve. Most actionable fix: reduce knuckle curve usage in favor of higher-performing offerings.
Data window 2026-10-01 / 2026-10-15Confidence MEDIUM
Optimization map
Arsenal shape map
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Movement reshape
Pitch movement dual-view
Current shape against the recommended movement window. Animation starts when this section scrolls into view.
Diagnosis
Fixable gaps
| Signal | Cause | Fix | Confidence |
|---|---|---|---|
| Arsenal Shape: Gloveside Drop0.60 | Existing Knuckle Curve is present, but its movement shape does not currently cover the desired gloveside-drop window. | Reshape existing Knuckle Curve to add gloveside drop rather than developing a new pitch from scratch.Shape refinement would improve platoon coverage while preserving the existing usage signal. | HIGH |
| Usage Overuse: Knuckle Curve0.60 | Knuckle Curve grades as the weakest pitch (whiff 15.5%, CSW 27.1%) but is thrown 27.9% of the time | Reduce Knuckle Curve usage in favor of higher-performing offeringsUsage rebalancing is the simplest optimization with immediate impact | MEDIUM |
Arsenal / metrics
Underlying components
| Component | Usage | Velo | Whiff |
|---|---|---|---|
| SweeperST | 34% | 88.0 | 42.9% |
| Four-Seam FastballFF | 31% | 98.8 | 48.0% |
| Knuckle CurveKC | 28% | 82.1 | 15.5% |
| SinkerSI | 13% | 98.3 | 38.2% |
| CurveballCU | 19% | 83.3 | 75.0% |
| CutterFC | 4% | 94.3 | 0.0% |