Optimization diagnostic / ATL
Ray Kerr
Ray Kerr's production (55) outpaces the tools grade (30) by 26 points. Primary finding: elite stuff tunnels well but pitches land in hittable zones. Also flagged: Arsenal Gap: Armside Drop; Arsenal Gap: Gloveside Sweep. Most actionable fix: develop a changeup to cover the armside-drop region.
Data window 2026-09-11 / 2026-09-25Confidence HIGH
Optimization map
Arsenal shape map
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ride
armside
gloveside
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 Gap: Armside Drop0.85 | No armside drop pitch (Changeup/Splitter) — platoon vulnerability vs opposite-hand hitters | Develop a Changeup to cover the armside-drop regionFilling this gap would improve platoon coverage and arsenal depth | HIGH |
| Arsenal Gap: Gloveside Sweep0.70 | No gloveside sweep — limits same-side deception | Develop a Sweeper to cover the gloveside-sweep regionFilling this gap would improve platoon coverage and arsenal depth | HIGH |
| Usage Underuse: Four-Seam Fastball0.70 | Four-Seam Fastball grades as the best pitch (whiff 0.0%, CSW 16.7%) but is only thrown 37.5% of the time | Increase Four-Seam Fastball 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 |
|---|---|---|---|
| Four-Seam FastballFF | 38% | 94.2 | 0.0% |
| SinkerSI | 34% | 94.6 | 0.0% |
| CurveballCU | 22% | 81.4 | 0.0% |
| Slow CurveCS | 3% | 80.1 | 100.0% |
| CutterFC | 3% | 89.7 | 0.0% |