Mithrandir Metrics
Player Washington Nationals Refreshed Sep 26 06:00 AM ET
Player profile / Washington Nationals

Josiah Gray

P · Bats/Throws R/R · 6' 1", 209 lb · Age 28

Cards
2
Modules
1
Live Δ
--
Club Washington Nationals Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

WLERAGGSSVIPSOWHIP
20238133.9130300159.01431.46
20240214.042208.192.40
2026000.003014.021.00
5 Seasons17274.7977731390.23841.42
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.

2026-09-26
34
Pitching
percentile
Arsenal4 metrics
34
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-26
ERA preseason4.11
ERA current pace0.00
ERA rolling p503.87
Observed weight6%
ERA
2.27 3.03 3.87 4.71 5.47
FIP
3.24 3.66 4.13 4.59 5.01
K%
16.8% 19.3% 22.1% 25.0% 27.5%
BB%
5.5% 6.9% 8.5% 10.1% 11.5%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-26
Mithrandir+

Stuff+ and arsenal context

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

2026-09-26
Curveball Stuff+94
0
Fastball Stuff+103
55
Mithrandir Stuff+98
18
Slider Stuff+103
62
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 43%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 Gray, Josiah · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 41%41%Whiff: 23%23%Called strike: 16%16%First pitch strike: 53%53%Hard hit allowed: 25%25% 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 Gray, Josiah · 2026 arsenal snapshot Slider: 43.1%Curveball: 25.9%4-Seam Fastball: 20.7%Sweeper: 8.6%Changeup: 1.7% SL43% · 87 mphprimary pitch SL 43%CU 26%FF 21%ST 9%CH 2% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Gray, Josiah · 2026 arsenal snapshot 12″24″36″48″ Slider: 43% usage, 1″ horizontal break, 30″ drop, 86.8 mphSL87 mphCurveball: 26% usage, 1″ horizontal break, 47″ drop, 81.6 mphCU82 mph4-Seam Fastball: 21% usage, 0″ horizontal break, 16″ drop, 92.2 mphFF92 mphSweeper: 9% usage, 4″ horizontal break, 43″ drop, 82.6 mphST83 mphChangeup: 2% usage, 13″ horizontal break, 28″ drop, 85.5 mphCH86 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 51.7% 30 103 limited sample
CB 25.9% 15 94 limited sample
FB 20.7% 12 103 limited sample
CH 1.7% 1 84 limited sample
Method note

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

Reference layer

Current snapshot

Age28
Height6' 1"
Weight209 lb
Debut2021-07-20
Live layer

Delta / regression

No Live State delta is available for this profile yet.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching22026-03-074-Seam Fastball played up through SL/CU tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202622.1% K | 4.02 ERAProjection