CurveballArsenal Shape: Gloveside Drop
Δ HB -7.3in · Δ VB +1.7in
Current: HB 4.3in / VB -9.7in
Recommended: HB -3.0in / VB -8.0in
Optimization diagnostic / MIL
Dustin May
Dustin May's tools (44) outpace production (18) by 26 points. Primary finding: elite stuff tunnels well but pitches land in hittable zones. Also flagged: Arsenal Shape: Gloveside Drop; Usage Underuse: Curveball. Most actionable fix: increase curveball usage to at least league-average for that pitch type.
Data window 2026-08-17 / 2026-08-31Confidence 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 |
|---|---|---|---|
| Stuff-to-Whiff Gap (Command)1.00 | Elite stuff tunnels well but pitches land in hittable zones | Reduce heart-of-zone pitches; increase edge and chase attemptsBetter location could push whiff rate toward 24%+ | MEDIUM |
| Arsenal Shape: Gloveside Drop0.60 | Existing Curveball is present, but its movement shape does not currently cover the desired gloveside-drop window. | Reshape existing Curveball 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 Underuse: Curveball0.70 | Curveball grades as the best pitch (whiff 57.7%, CSW 28.8%) but is only thrown 11.3% of the time | Increase Curveball usage to at least league-average for that pitch typeUsage rebalancing is the simplest optimization with immediate impact | MEDIUM |
Arsenal / metrics
Underlying components
| Component | Usage | Velo | Whiff |
|---|---|---|---|
| CutterFC | 26% | 93.0 | 14.3% |
| SinkerSI | 24% | 96.5 | 9.6% |
| 4-Seam FastballFF | 24% | 97.0 | 13.4% |
| SweeperST | 19% | 85.6 | 0.0% |
| CurveballCU | 11% | 83.5 | 57.7% |
| ChangeupCH | 4% | 89.2 | 0.0% |