Mithrandir Metrics
Player Toronto Blue Jays Refreshed Jun 1 06:00 AM ET
Player profile / Toronto Blue Jays

Hayden Juenger

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

Cards
0
Modules
0
Live Δ
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Club Toronto Blue Jays 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 preseason3.60
ERA current pace27.00
ERA rolling p504.26
Observed weight3%
ERA
1.59 2.86 4.26 5.66 6.93
FIP
1.37 2.68 4.13 5.57 6.88
K%
7.2% 12.1% 17.6% 23.0% 28.0%
BB%
0.2% 2.9% 5.8% 8.7% 11.3%
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+94
12
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 45%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 Juenger, Hayden · Aggregate zone metrics; not pitch-by-pitch locations Edge: 33%33%Zone: 42%42%Whiff: 6%6%Called strike: 14%14%First pitch strike: 29%29%Hard hit allowed: 60%60% 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 Juenger, Hayden · 2025 arsenal snapshot Changeup: 45.5%4-Seam Fastball: 22.7%Slider: 18.2%Cutter: 13.6% MIX CH 45%FF 23%SL 18%FC 14% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Juenger, Hayden · 2025 arsenal snapshot CH: HB -1.2, IVB 2.8CHFF: HB -0.3, IVB 1.4FFSL: HB -0.8, IVB 2.8SLFC: HB -0.4, IVB 2.6FC horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 50.0% 18 97 limited sample
SL 33.3% 12 106 limited sample
CH 16.7% 6 74 limited sample
Method note

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

Reference layer

Current snapshot

Age25
Height6' 0"
Weight180 lb
Debut2026-05-31
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 202618.6% K | 4.12 ERAProjection