Mithrandir Metrics
Player Iowa Cubs Refreshed Jun 2 06:00 AM ET
Player profile / Iowa Cubs

Christian Roa

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

Cards
0
Modules
0
Live Δ
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Club Iowa Cubs Position P Roster Reassigned to Minors 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 preseason2.68
ERA current pace5.19
ERA rolling p503.14
Observed weight18%
ERA
1.24 2.14 3.14 4.14 5.03
FIP
2.77 3.47 4.25 5.03 5.73
K%
13.7% 17.2% 21.1% 25.1% 28.6%
BB%
8.5% 10.4% 12.5% 14.6% 16.4%
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+97
17
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 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 Roa, Christian · Aggregate zone metrics; not pitch-by-pitch locations Edge: 37%37%Zone: 50%50%Whiff: 19%19%Called strike: 12%12%First pitch strike: 45%45%Hard hit allowed: 62%62% 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 Roa, Christian · 2026 arsenal snapshot Slider: 32.7%Sinker: 30.0%4-Seam Fastball: 29.5%Changeup: 7.8% MIX SL 33%SI 30%FF 29%CH 8% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Roa, Christian · 2026 arsenal snapshot SL: HB 0.1, IVB 2.9SLSI: HB 0.6, IVB 1.7SIFF: HB -0.5, IVB 1.3FFCH: HB -0.7, IVB 2.7CH horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 34.8% 62 104 limited sample
SI 32.0% 57 93 limited sample
FB 25.3% 45 88 limited sample
CH 7.9% 14 107 limited sample
Method note

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

Reference layer

Current snapshot

Age27
Height6' 4"
Weight220 lb
Debut2025-09-06
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 202620.4% K | 3.60 ERAProjection
2026-04-12 @ SEA2 ER / 2 K2.2 IP
2026-04-08 @ COL1 ER / 1 K1.2 IP
2026-04-07 @ COL0 ER / 1 K1.0 IP
2026-04-05 @ ATH0 ER / 0 K0.2 IP
2026-03-29 vs LAA0 ER / 1 K0.1 IP