SliderArsenal Shape: Gloveside Sweep
Δ HB -6.3in · Δ VB +1.9in
Current: HB -2.7in / VB +0.1in
Recommended: HB -9.0in / VB +2.0in
Optimization diagnostic / DET
Andrew Sears
Andrew Sears's tools (52) outpace production (42) by 11 points. Primary finding: existing slider is present, but its movement shape does not currently cover the desired gloveside-sweep window. Also flagged: Arsenal Gap: Gloveside Drop; Usage Underuse: Changeup. Most actionable fix: increase changeup usage to at least league-average for that pitch type.
Data window 2026-09-11 / 2026-09-25Confidence HIGH
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 Sweep0.70 | Existing Slider is present, but its movement shape does not currently cover the desired gloveside-sweep window. | Reshape existing Slider to add gloveside sweep rather than developing a new pitch from scratch.Shape refinement would improve platoon coverage while preserving the existing usage signal. | HIGH |
| Arsenal Gap: Gloveside Drop0.60 | No vertical drop pitch (Curveball/Knuckle Curve) — hitters can ignore low zone | Develop a Curveball to cover the gloveside-drop regionFilling this gap would improve platoon coverage and arsenal depth | HIGH |
| Usage Underuse: Changeup0.70 | Changeup grades as the best pitch (whiff 49.2%, CSW 26.9%) but is only thrown 12.7% of the time | Increase Changeup usage to at least league-average for that pitch typeUsage rebalancing is the simplest optimization with immediate impact | MEDIUM |
| Usage Overuse: Four-Seam Fastball0.60 | Four-Seam Fastball grades as the weakest pitch (whiff 15.8%, CSW 23.9%) but is thrown 48.2% of the time | Reduce Four-Seam Fastball usage in favor of higher-performing offeringsUsage rebalancing is the simplest optimization with immediate impact | MEDIUM |
Arsenal / metrics
Underlying components
| Component | Usage | Velo | Whiff |
|---|---|---|---|
| Four-Seam FastballFF | 48% | 94.0 | 15.8% |
| SliderSL | 33% | 82.1 | 40.1% |
| ChangeupCH | 13% | 87.5 | 49.2% |
| SinkerSI | 13% | 93.0 | 0.0% |