Mithrandir Metrics
Player LAA Refreshed Jul 18 06:00 AM ET
Player profile / LAA

Walbert Ureña

Player · Bats/Throws R/R · 6' 0", 210 lb · Age 22

Cards
11
Modules
1
Live Δ
yes
Club LAA Position -- Roster Active Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2026572.881715081.1781.32
1 Seasons572.881715081.1781.32
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
52
Pitching
percentile
Pitching9 metrics
66
Arsenal5 metrics
43
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 preseason2.71
ERA current pace2.88
ERA rolling p502.81
Observed weight61%
ERA
1.07 1.90 2.81 3.73 4.56
FIP
2.04 2.78 3.61 4.43 5.18
K%
17.5% 19.5% 21.7% 24.0% 26.0%
BB%
8.2% 9.2% 10.3% 11.5% 12.5%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-07-18
Pitching · percentile strip
WHIP1.36
43
ERA2.88
79
BB%13.2%
11 -53 vs proj
K%22.2%
48 +22 vs proj
xwOBA allowed0.283
79
Barrel allowed5.1%
85 +28 vs proj
Fastball velo97.4
91
Hard-hit allowed32.9%
87
Whiff%26.6%
76 +43 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
Changeup Stuff+106
79
Mithrandir Stuff+101
45
Sinker Stuff+99
30
Fastball Stuff+98
21
Slider Stuff+101
42
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 Ureña, Walbert · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 0.283 2026-07-07: 0.2822026-07-08: 0.2822026-07-09: 0.2822026-07-10: 0.2832026-07-11: 0.2832026-07-12: 0.2832026-07-13: 0.2832026-07-14: 0.2832026-07-15: 0.2832026-07-16: 0.2832026-07-17: 0.2832026-07-18: 0.283 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.

5Pitches 2026Season 33%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 Ureña, Walbert · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 42%42%Whiff: 27%27%Called strike: 16%16%First pitch strike: 42%42%Hard hit allowed: 33%33% 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 Ureña, Walbert · 2026 arsenal snapshot Changeup: 32.6%Sinker: 31.5%4-Seam Fastball: 20.1%Sweeper: 15.7%Pitch Out: 0.1% CH33% · 90 mphprimary pitch CH 33%SI 31%FF 20%ST 16%PO 0% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Ureña, Walbert · 2026 arsenal snapshot 12″24″36″48″ Changeup: 33% usage, 8″ horizontal break, 29″ drop, 90.3 mphCH90 mphSinker: 31% usage, 2″ horizontal break, 22″ drop, 97.5 mphSI97 mph4-Seam Fastball: 20% usage, 2″ horizontal break, 16″ drop, 97.3 mphFF97 mphSweeper: 16% usage, 3″ horizontal break, 38″ drop, 86.2 mphST86 mphPitch Out: 0% usage, 6″ horizontal break, 29″ drop, 84.7 mphPO85 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
CH 35.9% 304 106 qualified
SI 30.3% 257 99 qualified
FB 18.7% 158 98 limited sample
SL 15.1% 128 101 limited sample
Method note

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

Reference layer

Current snapshot

MLB bio context is unavailable.
Live layer

Delta / regression

ERA Δ-0.75
K% Δ+0.032

positive regression

Regression watch

Unlucky so far. Better days ahead.

1.6σ gap
wOBA-against (actual)0.328
xwOBA-against (deserved)0.283

Ureña’s wOBA-against sits at 0.328, but the quality of contact underneath says it should be 0.283 — a gap of 0.045, 1.6 standard deviations from the MLB norm over 85 IP. The results have been worse than the process deserves; as the sample grows, expect the numbers to climb back toward the underlying level.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching112026-07-08Changeup played up through CH/FF tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202619.0% K | 3.63 ERAProjection
2026-03-26 @ HOU0 HR | 0 RBI / 0 Ch | 0 E0 H in 0 AB