Mithrandir Metrics
Player Houston Astros Refreshed Jun 2 06:00 AM ET
Player profile / Houston Astros

Nate Pearson

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

Cards
0
Modules
0
Live Δ
--
Club Houston Astros 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.

2026-06-02
ERA preseason4.19
ERA current pace0.00
ERA rolling p503.95
Observed weight6%
ERA
1.01 2.41 3.95 5.50 6.90
FIP
2.91 3.48 4.12 4.76 5.33
K%
15.3% 18.7% 22.6% 26.4% 29.8%
BB%
5.7% 7.5% 9.5% 11.5% 13.3%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-02
Mithrandir+

Stuff+ and arsenal context

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

2026-06-02
Mithrandir Stuff+112
99
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 2025Season 52%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 Pearson, Nate · Aggregate zone metrics; not pitch-by-pitch locations Edge: 40%40%Zone: 44%44%Whiff: 24%24%Called strike: 13%13%First pitch strike: 43%43%Hard hit allowed: 22%22% 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 Pearson, Nate · 2025 arsenal snapshot 4-Seam Fastball: 52.1%Slider: 40.4%Curveball: 5.0%Sinker: 2.5% MIX FF 52%SL 40%CU 5%SI 2% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Pearson, Nate · 2025 arsenal snapshot FF: HB 0.1, IVB 1.0FFSL: HB -0.0, IVB 2.6SLCU: HB 0.3, IVB 4.0CUSI: HB 1.1, IVB 1.4SI horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 44.2% 19 115 limited sample
SL 44.2% 19 104 limited sample
SI 7.0% 3 116 limited sample
CH 2.3% 1 132 limited sample
CB 2.3% 1 94 limited sample
Method note

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

Reference layer

Current snapshot

Age29
Height6' 6"
Weight255 lb
Debut2020-07-29
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 202623.0% K | 4.67 ERAProjection
2026-05-20 @ MIN0 ER / 0 K1.0 IP