Mithrandir Metrics
Player Los Angeles Dodgers Refreshed Sep 28 06:00 AM ET
Player profile / Los Angeles Dodgers

Justin Wrobleski

P · Bats/Throws L/L · 6' 1", 194 lb · Age 26

Cards
19
Modules
1
Live Δ
yes
Club Los Angeles Dodgers Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024125.7086136.1261.38
2025554.32242266.2761.23
20261253.6628220140.01181.14
3 Seasons18124.1560303243.02201.20
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.

2026-09-28
63
Pitching
percentile
Pitching9 metrics
47
Arsenal7 metrics
56
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-28
ERA preseason4.45
ERA current pace3.72
ERA rolling p503.93
Observed weight71%
ERA
2.68 3.27 3.93 4.59 5.18
FIP
2.95 3.45 4.01 4.57 5.07
K%
19.9% 20.9% 22.1% 23.2% 24.2%
BB%
4.7% 5.3% 5.9% 6.5% 7.1%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-28
Pitching · percentile strip
WHIP1.12
83
ERA3.72
62
BB%5.2%
94 +17 vs proj
K%20.8%
42 -30 vs proj
xwOBA allowed0.326
33 -41 vs proj
Barrel allowed9.5%
19 -28 vs proj
Fastball velo94.6
52
Hard-hit allowed43.6%
17
Whiff%19.3%
22
Mithrandir+

Stuff+ and arsenal context

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

2026-09-28
Fastball Stuff+108
91
Mithrandir Stuff+106
85
Slider Stuff+102
47
Changeup Stuff+101
45
Curveball Stuff+104
72
Cutter Stuff+86
1
Sinker Stuff+103
55
Rolling form chart

xwOBA allowed snapshot line

Live snapshot series; true 50/100 PA windows require PA-level logs

12 snapshots
Mithrandir Metrics ROLLING XWOBA LINE Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Rolling xwOBA allowed Wrobleski, Justin · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.326 2026-09-14: 0.3312026-09-18: 0.3282026-09-19: 0.3282026-09-20: 0.3282026-09-21: 0.3282026-09-22: 0.3282026-09-23: 0.3272026-09-24: 0.3272026-09-25: 0.3272026-09-26: 0.3282026-09-27: 0.3282026-09-28: 0.326 2026-09-14 2026-09-28 xwOBA allowed MITHRANDIR · CHARTS
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.

8Pitches 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 Wrobleski, Justin · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 53%53%Whiff: 19%19%Called strike: 18%18%First pitch strike: 53%53%Hard hit allowed: 44%44% 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 Wrobleski, Justin · 2026 arsenal snapshot 4-Seam Fastball: 48.9%Slider: 28.5%Sinker: 8.2%Changeup: 4.8%Curveball: 4.6%Sweeper: 3.3% FF49% · 95 mphprimary pitch FF 49%SL 29%SI 8%CH 5%CU 5%ST 3% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Wrobleski, Justin · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 49% usage, 3″ horizontal break, 14″ drop, 94.7 mphFF95 mphSlider: 29% usage, 2″ horizontal break, 36″ drop, 86.6 mphSL87 mphSinker: 8% usage, 4″ horizontal break, 21″ drop, 94.0 mphSI94 mphChangeup: 5% usage, 13″ horizontal break, 32″ drop, 85.6 mphCH86 mphCurveball: 5% usage, 7″ horizontal break, 55″ drop, 75.3 mphCU75 mphSweeper: 3% usage, 2″ horizontal break, 41″ drop, 84.9 mphST85 mphCutter: 2% usage, 1″ horizontal break, 26″ drop, 91.4 mphFC91 mphSplit-Finger: 0% usage, 3″ horizontal break, 29″ drop, 83.3 mphFS83 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 50.6% 677 108 qualified
SL 33.8% 452 102 qualified
SI 6.1% 82 103 limited sample
CB 4.9% 65 104 limited sample
CH 3.7% 49 101 limited sample
FC 1.0% 14 86 limited sample
Method note

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

Reference layer

Current snapshot

Age26
Height6' 1"
Weight194 lb
Debut2024-07-07
Live layer

Delta / regression

ERA Δ-0.49
K% Δ-0.044

negative regression

Regression watch

Running hot. Expect some cooling.

-0.5σ gap
wOBA-against (actual)0.313
xwOBA-against (deserved)0.326

Wrobleski’s wOBA-against sits at 0.313, but the quality of contact underneath says it should be 0.326 — a gap of 0.012, -0.5 standard deviations from the MLB norm over 143 IP. The results have outrun the underlying process; as the sample grows, expect the numbers to drift back toward the deserved level.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching192026-09-06Four-Seam Fastball played up through FF/SL tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202625.2% K | 4.21 ERAProjection
2026-08-15 vs MIL4 ER / 6 K6.0 IP
2026-04-20 @ COL1 ER / 3 K7.0 IP
2026-04-13 vs NYM0 ER / 2 K8.0 IP
2026-04-06 @ TOR1 ER / 2 K5.0 IP
2026-03-30 vs CLE3 ER / 2 K4.0 IP