Mithrandir Metrics
Player Omaha Storm Chasers Refreshed Jun 1 06:00 AM ET
Player profile / Omaha Storm Chasers

Mitch Spence

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

Cards
2
Modules
1
Live Δ
--
Club Omaha Storm Chasers Position P Roster Reassigned to Minors Status Out / inactive
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 preseason4.62
ERA current pace13.50
ERA rolling p505.34
Observed weight8%
ERA
3.54 4.39 5.34 6.29 7.14
FIP
4.00 4.46 4.98 5.49 5.95
K%
13.7% 16.2% 18.9% 21.7% 24.1%
BB%
5.9% 7.0% 8.2% 9.5% 10.6%
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+92
9
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.

6Pitches 2025Season 45%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 Spence, Mitch · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 44%44%Whiff: 16%16%Called strike: 18%18%First pitch strike: 48%48%Hard hit allowed: 38%38% Dashed border = aggregate mixed-batter zone proxy MITHRANDIR · CHARTS
Pitch arsenal

Usage mix, movement map, and Stuff+ composition

2025 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.

2025
Mithrandir Metrics PITCH ARSENAL DONUT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Spence, Mitch · 2025 arsenal snapshot Cutter: 45.3%Slider: 26.4%Curveball: 17.5%Sinker: 9.5%Changeup: 1.2%Pitch Out: 0.1% MIX FC 45%SL 26%CU 18%SI 10%CH 1%PO 0% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Spence, Mitch · 2025 arsenal snapshot FC: HB -0.0, IVB 2.4FCSL: HB -0.5, IVB 3.0SLCU: HB 0.3, IVB 4.3CUSI: HB 0.2, IVB 2.3SICH: HB -0.5, IVB 2.7CHPO: HB 0.2, IVB 2.5PO horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FC 35.7% 30 83 limited sample
SI 21.4% 18 98 limited sample
SL 19.0% 16 104 limited sample
CB 13.1% 11 108 limited sample
CH 10.7% 9 95 limited sample
Method note

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

Reference layer

Current snapshot

Age28
Height6' 1"
Weight185 lb
Debut2024-03-29
Live layer

Delta / regression

No Live State delta is available for this profile yet.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching22026-03-11Stuff and strike quality carried the outing
Projection links / recent games

Available detail

Pitcher Projections 202619.3% K | 4.89 ERAProjection
2026-03-11 @ CHC5 ER / 0 K2.0 IP