Mithrandir Metrics
Player Washington Nationals Refreshed Jun 1 06:00 AM ET
Player profile / Washington Nationals

Andrew Alvarez

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

Cards
2
Modules
1
Live Δ
--
Club Washington Nationals 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 preseason4.58
ERA current pace2.84
ERA rolling p504.21
Observed weight21%
ERA
2.73 3.43 4.21 4.99 5.70
FIP
2.63 3.15 3.74 4.32 4.85
K%
16.2% 18.5% 21.2% 23.8% 26.2%
BB%
6.1% 7.3% 8.7% 10.0% 11.2%
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+100
34
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.

5Pitches 2026Season 33%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 Alvarez, Andrew · Aggregate zone metrics; not pitch-by-pitch locations Edge: 33%33%Zone: 47%47%Whiff: 24%24%Called strike: 17%17%First pitch strike: 36%36%Hard hit allowed: 43%43% 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 Alvarez, Andrew · 2026 arsenal snapshot Curveball: 32.9%Slider: 28.3%4-Seam Fastball: 24.4%Sinker: 12.4%Changeup: 1.9% MIX CU 33%SL 28%FF 24%SI 12%CH 2% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Alvarez, Andrew · 2026 arsenal snapshot CU: HB 0.6, IVB 4.4CUSL: HB 0.1, IVB 3.5SLFF: HB -0.1, IVB 1.6FFSI: HB 0.4, IVB 2.1SICH: HB -1.2, IVB 2.8CH horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
CB 33.7% 62 104 limited sample
SL 29.3% 54 101 limited sample
FB 23.4% 43 97 limited sample
SI 12.5% 23 97 limited sample
CH 1.1% 2 99 limited sample
Method note

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

Reference layer

Current snapshot

Age26
Height6' 3"
Weight215 lb
Debut2025-09-01
Live layer

Delta / regression

No Live State delta is available for this profile yet.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching22026-03-08Curveball played up through CU/FF tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202620.8% K | 4.51 ERAProjection
2026-05-20 vs NYM2 ER / 5 K4.0 IP