SliderArsenal Shape: Gloveside Sweep
Δ HB -11.7in · Δ VB +1.5in
Current: HB 2.7in / VB +0.5in
Recommended: HB -9.0in / VB +2.0in
Optimization diagnostic / CIN
Chase Burns
Chase Burns's tools (67) outpace production (61) by 6 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 Overuse: 4-Seam Fastball. Most actionable fix: reduce 4-seam fastball usage in favor of higher-performing offerings.
Data window 2026-08-17 / 2026-08-31Confidence 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 Overuse: 4-Seam Fastball0.60 | 4-Seam Fastball grades as the weakest pitch (whiff 10.4%, CSW 25.5%) but is thrown 50.4% of the time | Reduce 4-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 |
|---|---|---|---|
| 4-Seam FastballFF | 50% | 97.6 | 10.4% |
| SliderSL | 41% | 90.0 | 51.3% |
| ChangeupCH | 7% | 90.4 | 67.3% |
| SinkerSI | 9% | 97.2 | 0.0% |