Mithrandir Metrics
Player Los Angeles Dodgers Refreshed Jul 18 06:00 AM ET
Player profile / Los Angeles Dodgers

Justin Wrobleski

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

Cards
13
Modules
1
Live Δ
yes
Club Los Angeles Dodgers Position P Roster Active Status Out / inactive
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024125.7086136.1261.38
2025554.32242266.2761.23
20261022.6916150100.1731.02
3 Seasons1693.7648233203.11751.15
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.

2026-07-18
69
Pitching
percentile
Pitching9 metrics
53
Arsenal6 metrics
54
Rolling projection

Preseason / current pace / Bayesian update

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

2026-07-18
ERA preseason4.45
ERA current pace2.69
ERA rolling p503.34
Observed weight63%
ERA
2.15 2.71 3.34 3.96 4.53
FIP
2.51 2.99 3.52 4.05 4.53
K%
18.7% 19.9% 21.2% 22.5% 23.7%
BB%
4.4% 5.1% 5.8% 6.5% 7.2%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-07-18
Pitching · percentile strip
WHIP0.99
91
ERA2.69
84
BB%4.9%
96 +22 vs proj
K%18.9%
26 -43 vs proj
xwOBA allowed0.314
50 -20 vs proj
Barrel allowed7.7%
48
Fastball velo94.2
47
Hard-hit allowed42.6%
26
Whiff%18.2%
12 -17 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-07-18
Fastball Stuff+106
78
Mithrandir Stuff+104
70
Slider Stuff+102
48
Changeup Stuff+99
30
Curveball Stuff+103
63
Sinker Stuff+100
33
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 0.314 0.314 2026-07-07: 0.3202026-07-08: 0.3202026-07-09: 0.3142026-07-10: 0.3142026-07-11: 0.3142026-07-12: 0.3142026-07-13: 0.3142026-07-14: 0.3142026-07-15: 0.3142026-07-16: 0.3142026-07-17: 0.3142026-07-18: 0.314 2026-07-07 2026-07-18 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.

7Pitches 2026Season 50%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: 35%35%Zone: 54%54%Whiff: 18%18%Called strike: 17%17%First pitch strike: 51%51%Hard hit allowed: 43%43% 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: 49.7%Slider: 30.5%Sinker: 6.9%Curveball: 5.4%Changeup: 4.9%Sweeper: 1.8% FF50% · 94 mphprimary pitch FF 50%SL 30%SI 7%CU 5%CH 5%ST 2% 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: 50% usage, 4″ horizontal break, 15″ drop, 94.3 mphFF94 mphSlider: 30% usage, 2″ horizontal break, 37″ drop, 86.2 mphSL86 mphSinker: 7% usage, 5″ horizontal break, 21″ drop, 93.5 mphSI94 mphCurveball: 5% usage, 6″ horizontal break, 55″ drop, 74.7 mphCU75 mphChangeup: 5% usage, 13″ horizontal break, 32″ drop, 85.7 mphCH86 mphSweeper: 2% usage, 3″ horizontal break, 42″ drop, 84.9 mphST85 mphCutter: 1% usage, 2″ horizontal break, 25″ drop, 90.8 mphFC91 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 50.3% 510 106 qualified
SL 34.1% 346 102 qualified
CB 5.8% 59 103 limited sample
SI 4.8% 49 100 limited sample
CH 4.4% 45 99 limited sample
FC 0.5% 5 54 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-1.52
K% Δ-0.063

negative regression

Regression watch

Running hot. Expect some cooling.

-1.6σ gap
wOBA-against (actual)0.271
xwOBA-against (deserved)0.314

Wrobleski’s wOBA-against sits at 0.271, but the quality of contact underneath says it should be 0.314 — a gap of 0.043, -1.6 standard deviations from the MLB norm over 103 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
Pitching132026-07-07Four-Seam Fastball played up through FF/SL tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202625.2% K | 4.21 ERAProjection
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