Optimization diagnostic / ATH
Jack Perkins
Jack Perkins's production (64) outpaces the tools grade (47) by 17 points. Primary finding: no vertical drop pitch (curveball/knuckle curve) — hitters can ignore low zone.
Data window 2026-09-12 / 2026-09-26Confidence MEDIUM
Optimization map
Arsenal shape map
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ride
armside
gloveside
Diagnosis
Fixable gaps
| Signal | Cause | Fix | Confidence |
|---|---|---|---|
| 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 |
Arsenal / metrics
Underlying components
| Component | Usage | Velo | Whiff |
|---|---|---|---|
| SweeperST | 24% | 86.8 | 45.4% |
| CutterFC | 22% | 93.1 | 26.9% |
| ChangeupCH | 22% | 90.1 | 40.2% |
| Four-Seam FastballFF | 20% | 95.2 | 21.5% |
| SinkerSI | 12% | 94.8 | 43.9% |
| SliderSL | 3% | 85.3 | 46.4% |