Mithrandir Metrics

Data window 2026-09-11 / 2026-09-25Confidence HIGH

Optimization map

Arsenal shape map

Hover each pitch to inspect current usage, movement shape, and whiff context beside the written diagnosis.

View arsenal in 3D →

ride armside gloveside

Movement reshape

Current shape against the recommended movement window. Animation starts when this section scrolls into view.

SliderArsenal Shape: Gloveside Sweep

Δ HB -7.9in · Δ VB +0.2in

Current: HB -1.1in / VB +1.8in Recommended: HB -9.0in / VB +2.0in

Diagnosis

Signal	Cause	Fix	Confidence
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 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
Platoon Vulnerability0.80	Sweeper/slider-heavy arsenal with no armside offering — opposite-hand hitters can sit on the breaking ball	Develop an armside offering (changeup, splitter, or cutter) for opposite-hand matchupsClosing platoon gap typically worth 0.3-0.5 ERA improvement in full-season sample	HIGH

Arsenal / metrics

Component	Usage	Velo	Whiff
Four-Seam FastballFF	57%	94.2	33.3%
SliderSL	29%	89.0	50.0%
CurveballCU	14%	81.0	0.0%