Mithrandir Metrics
Player Los Angeles Dodgers Refreshed Jun 14 06:00 AM ET
Player profile / Los Angeles Dodgers

Jonathan Hernández

P · Bats/Throws R/R · 6' 3", 190 lb · Age 29

Cards
0
Modules
0
Live Δ
--
Club Los Angeles Dodgers Position P Roster Active Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2023125.40330031.2341.58
2024315.40291043.1391.59
2026004.9780012.2101.18
6 Seasons1384.3513534165.21601.42
At a glance

Season percentile report

The headline weighs outcome stats (xwOBA, barrels); each bar averages its full strip group below. 100 = best in MLB.

2026-06-14
76
Pitching
percentile
Arsenal3 metrics
76
Rolling projection

Preseason / current pace / Bayesian update

Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.

2026-06-14
ERA preseason3.86
ERA current pace5.40
ERA rolling p504.17
Observed weight21%
ERA
2.13 3.10 4.17 5.25 6.21
FIP
3.15 3.88 4.68 5.48 6.20
K%
16.5% 19.1% 22.0% 24.9% 27.5%
BB%
7.5% 9.2% 11.1% 13.0% 14.7%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-14
Mithrandir+

Stuff+ and arsenal context

How nasty this pitcher's stuff grades in our pitch-level model. Missing coverage is shown explicitly.

2026-06-14
Mithrandir Stuff+108
91
Sinker Stuff+109
95
Slider Stuff+101
42
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 44%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: 39%39%Zone: 42%42%Whiff: 22%22%Called strike: 13%13%First pitch strike: 50%50%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.

Watch the pitches in 3D →

2026
Mithrandir Metrics PITCH ARSENAL DONUT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Hernández, Jonathan · 2026 arsenal snapshot Slider: 44.5%Sinker: 41.7%4-Seam Fastball: 10.6%Changeup: 3.1% SL44% · 89 mphprimary pitch SL 44%SI 42%FF 11%CH 3% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Hernández, Jonathan · 2026 arsenal snapshot 9″18″27″36″ Slider: 44% usage, 0″ horizontal break, 33″ drop, 88.8 mphSL89 mphSinker: 42% usage, 11″ horizontal break, 24″ drop, 96.8 mphSI97 mph4-Seam Fastball: 11% usage, 8″ horizontal break, 16″ drop, 97.1 mphFF97 mphChangeup: 3% usage, 11″ horizontal break, 31″ drop, 91.9 mphCH92 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SI 49.2% 59 109 limited sample
SL 41.7% 50 101 limited sample
FB 7.5% 9 103 limited sample
CH 1.7% 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 | 3.58 ERAProjection
2026-03-21 @ BAL5 ER / 1 K0.1 IP
2026-03-19 vs TB0 ER / 1 K1.0 IP