Optimization diagnostic / TB
Griffin Jax
Griffin Jax's tools (39) and production (40) are aligned. Primary finding: changeup grades as the best pitch (whiff 25.0%, csw 11.8%) but is only thrown 25.4% of the time. Also flagged: Stuff-to-Whiff Gap (Command). Most actionable fix: increase changeup usage to at least league-average for that pitch type.
Data window 2026-10-01 / 2026-10-15Confidence MEDIUM
Optimization map
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Diagnosis
Fixable gaps
| Signal | Cause | Fix | Confidence |
|---|---|---|---|
| Stuff-to-Whiff Gap (Command)0.61 | 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 |
| Usage Underuse: Changeup0.70 | Changeup grades as the best pitch (whiff 25.0%, CSW 11.8%) but is only thrown 25.4% of the time | Increase Changeup 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 |
|---|---|---|---|
| SinkerSI | 36% | 95.7 | 11.1% |
| ChangeupCH | 25% | 91.1 | 25.0% |
| CurveballCU | 15% | 85.5 | 25.0% |
| Four-Seam FastballFF | 12% | 96.2 | 0.0% |
| SweeperST | 12% | 88.4 | 0.0% |