Mithrandir Metrics
Player Detroit Tigers Refreshed Jun 1 06:00 AM ET
Player profile / Detroit Tigers

Will Vest

P profile with live context, projection links, and Mithrandir card history when available.

Cards
0
Modules
0
Live Δ
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Club Detroit Tigers Position P Roster Active Status Healthy / active roster
Rolling projection

Preseason / current pace / Bayesian update

Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.

2026-06-01
ERA preseason3.24
ERA current pace7.88
ERA rolling p504.42
Observed weight25%
ERA
3.09 3.72 4.42 5.12 5.75
FIP
2.43 2.88 3.38 3.88 4.33
K%
18.3% 21.1% 24.2% 27.3% 30.2%
BB%
4.5% 5.7% 7.1% 8.4% 9.6%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Mithrandir+

Stuff+ and arsenal context

Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; missing coverage is shown explicitly.

2026-06-01
Mithrandir Stuff+105
74
Rolling form chart

xwOBA allowed snapshot line

Live snapshot series; true 50/100 PA windows require PA-level logs

0 snapshots
No chart yet

No Live State xwOBA snapshots are available for this player.

Optimization map

Arsenal optimization map

Pitch-shape context from this pitcher’s current arsenal snapshot. Hover a pitch to inspect usage, movement, and bat-missing context.

4Pitches 2026Season 46%Top usage
ride armside gloveside +Arsenal gap +Shape contrast
Zone profile

Aggregate zone heatmap

Aggregate zone metrics from seasonal Statcast leaderboards.

Mithrandir Metrics ZONE HEATMAP Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Pitch Zone Profile Vest, Will · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 46%46%Whiff: 28%28%Called strike: 16%16%First pitch strike: 52%52%Hard hit allowed: 35%35% Dashed border = aggregate mixed-batter zone proxy MITHRANDIR · CHARTS
Pitch arsenal

Usage mix, movement map, and Stuff+ composition

2026 pitch-level arsenal aggregates; current season takes over after 100 tracked pitches across at least 2 pitch types. Descriptive pitch-type Stuff+ composition. Not a promoted predictive metric.

2026
Mithrandir Metrics PITCH ARSENAL DONUT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Vest, Will · 2026 arsenal snapshot 4-Seam Fastball: 45.9%Slider: 27.9%Sinker: 14.5%Changeup: 11.6% MIX FF 46%SL 28%SI 15%CH 12% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Vest, Will · 2026 arsenal snapshot FF: HB -0.2, IVB 1.1FFSL: HB 0.0, IVB 3.1SLSI: HB 1.1, IVB 1.6SICH: HB -1.3, IVB 2.5CH horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 46.5% 144 110 limited sample
SL 27.1% 84 101 limited sample
SI 14.5% 45 95 limited sample
CH 11.9% 37 96 limited sample
Method note

Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.

Reference layer

Current snapshot

Age30
Height6' 0"
Weight180 lb
Debut2021-04-01
Live layer

Delta / regression

No Live State delta is available for this profile yet.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

Pitcher Projections 202624.9% K | 3.22 ERAProjection
2026-05-20 vs CLE1 ER / 1 K1.0 IP
2026-04-17 @ BOS0 ER / 2 K1.1 IP
2026-04-14 vs KC0 ER / 3 K1.0 IP
2026-04-09 @ MIN2 ER / 1 K0.2 IP
2026-04-08 @ MIN0 ER / 1 K1.0 IP