Mithrandir Metrics
Player Los Angeles Dodgers Refreshed Jun 2 06:00 AM ET
Player profile / Los Angeles Dodgers

Jonathan Hernández

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

Cards
0
Modules
0
Live Δ
--
Club Los Angeles Dodgers 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 preseason3.86
ERA current pace0.00
ERA rolling p503.39
Observed weight12%
ERA
1.21 2.24 3.39 4.54 5.57
FIP
2.58 3.36 4.23 5.10 5.88
K%
16.5% 19.3% 22.5% 25.6% 28.5%
BB%
6.3% 8.1% 10.1% 12.1% 13.9%
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+108
94
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 49%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 Hernández, Jonathan · Aggregate zone metrics; not pitch-by-pitch locations Edge: 35%35%Zone: 40%40%Whiff: 27%27%Called strike: 14%14%First pitch strike: 58%58%Hard hit allowed: 32%32% 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 Hernández, Jonathan · 2026 arsenal snapshot Slider: 48.6%Sinker: 43.5%Changeup: 4.3%4-Seam Fastball: 3.6% MIX SL 49%SI 43%CH 4%FF 4% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Hernández, Jonathan · 2026 arsenal snapshot SL: HB 0.0, IVB 2.8SLSI: HB 0.9, IVB 2.0SICH: HB -0.9, IVB 2.6CHFF: HB -1.0, IVB 1.3FF horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SI 46.9% 38 109 limited sample
SL 44.4% 36 102 limited sample
FB 6.2% 5 113 limited sample
CH 2.5% 2 99 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' 3"
Weight190 lb
Debut2019-08-21
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 202622.9% K | 3.57 ERAProjection
2026-03-21 @ BAL5 ER / 1 K0.1 IP
2026-03-19 vs TB0 ER / 1 K1.0 IP