Mithrandir Metrics
Player Colorado Rockies Refreshed Jun 1 06:00 AM ET
Player profile / Colorado Rockies

Blas Castaño

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

Cards
0
Modules
0
Live Δ
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Club Colorado Rockies 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 preseason4.61
ERA current pace3.00
ERA rolling p504.34
Observed weight17%
ERA
1.78 2.99 4.34 5.69 6.90
FIP
2.71 3.56 4.51 5.45 6.31
K%
6.4% 10.9% 15.8% 20.8% 25.2%
BB%
2.8% 5.2% 7.8% 10.5% 12.8%
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+98
24
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 40%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 Castaño, Blas · Aggregate zone metrics; not pitch-by-pitch locations Edge: 39%39%Zone: 48%48%Whiff: 24%24%Called strike: 19%19%First pitch strike: 58%58%Hard hit allowed: 48%48% 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 Castaño, Blas · 2026 arsenal snapshot Sinker: 39.8%Sweeper: 23.7%Cutter: 18.3%Changeup: 10.2%4-Seam Fastball: 8.1% MIX SI 40%ST 24%FC 18%CH 10%FF 8% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Castaño, Blas · 2026 arsenal snapshot SI: HB 0.4, IVB 2.2SIST: HB -0.4, IVB 3.2STFC: HB 0.0, IVB 2.2FCCH: HB -0.7, IVB 2.9CHFF: HB 0.1, IVB 1.6FF horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SI 41.1% 58 98 limited sample
SL 24.8% 35 101 limited sample
FC 16.3% 23 98 limited sample
CH 11.3% 16 101 limited sample
FB 6.4% 9 84 limited sample
Method note

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

Reference layer

Current snapshot

Age27
Height5' 10"
Weight162 lb
Debut2025-05-28
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 202620.6% K | 4.72 ERAProjection