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

Caleb Thielbar

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

Cards
1
Modules
1
Live Δ
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Club Chicago Cubs 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 preseason3.67
ERA current pace3.09
ERA rolling p503.55
Observed weight21%
ERA
1.90 2.68 3.55 4.41 5.19
FIP
3.01 3.34 3.71 4.07 4.40
K%
18.2% 21.1% 24.2% 27.3% 30.2%
BB%
5.5% 7.0% 8.5% 10.1% 11.6%
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+105
76
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 48%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 Thielbar, Caleb · Aggregate zone metrics; not pitch-by-pitch locations Edge: 35%35%Zone: 45%45%Whiff: 21%21%Called strike: 13%13%First pitch strike: 49%49%Hard hit allowed: 31%31% 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 Thielbar, Caleb · 2026 arsenal snapshot 4-Seam Fastball: 48.3%Curveball: 21.5%Slider: 20.4%Sweeper: 9.1%Split-Finger: 0.8% MIX FF 48%CU 22%SL 20%ST 9%FS 1% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Thielbar, Caleb · 2026 arsenal snapshot FF: HB -0.2, IVB 1.0FFCU: HB 0.3, IVB 5.1CUSL: HB 0.0, IVB 2.4SLST: HB -1.2, IVB 3.5STFS: HB -0.2, IVB 2.6FS horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 52.8% 113 109 limited sample
SL 25.7% 55 100 limited sample
CB 21.5% 46 100 limited sample
Method note

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

Reference layer

Current snapshot

Age39
Height6' 0"
Weight205 lb
Debut2013-05-20
Live layer

Delta / regression

No Live State delta is available for this profile yet.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching12026-03-08Command and chase profile drove the outing
Projection links / recent games

Available detail

Pitcher Projections 202624.3% K | 3.73 ERAProjection
2026-04-14 @ PHI0 ER / 2 K0.2 IP
2026-04-11 vs PIT0 ER / 3 K1.0 IP
2026-04-07 @ TB0 ER / 0 K0.1 IP
2026-04-05 @ CLE0 ER / 0 K1.1 IP
2026-04-01 vs LAA0 ER / 2 K1.0 IP