Mithrandir Metrics
Player Los Angeles Angels Refreshed Sep 26 06:00 AM ET
Player profile / Los Angeles Angels

Walbert Ureña

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

Cards
22
Modules
1
Live Δ
yes
Club Los Angeles Angels Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
20269112.9729270148.11421.23
1 Seasons9112.9729270148.11421.23
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
63
Pitching
percentile
Pitching9 metrics
71
Arsenal5 metrics
55
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 preseason2.71
ERA current pace2.74
ERA rolling p502.73
Observed weight73%
ERA
0.86 1.75 2.73 3.72 4.61
FIP
1.81 2.60 3.49 4.38 5.18
K%
19.2% 20.6% 22.3% 23.9% 25.4%
BB%
8.0% 8.8% 9.7% 10.5% 11.3%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-26
Pitching · percentile strip
WHIP1.26
62
ERA2.74
87
BB%11.1%
25 -41 vs proj
K%22.8%
56 +27 vs proj
xwOBA allowed0.281
84
Barrel allowed5.3%
84 +31 vs proj
Fastball velo98.1
95
Hard-hit allowed35.6%
72
Whiff%26.3%
78 +40 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-09-26
Changeup Stuff+106
82
Fastball Stuff+101
38
Mithrandir Stuff+103
60
Sinker Stuff+102
48
Slider Stuff+101
46
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 0.313 0.281 2026-09-12: 0.2862026-09-13: 0.2862026-09-14: 0.2862026-09-18: 0.2812026-09-19: 0.2812026-09-20: 0.2812026-09-21: 0.2812026-09-22: 0.2812026-09-23: 0.2812026-09-24: 0.2812026-09-25: 0.2812026-09-26: 0.281 2026-09-12 2026-09-26 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 34%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: 39%39%Zone: 44%44%Whiff: 26%26%Called strike: 16%16%First pitch strike: 44%44%Hard hit allowed: 36%36% 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: 34.1%Sinker: 33.3%4-Seam Fastball: 18.4%Sweeper: 14.0%Pitch Out: 0.0% CH34% · 91 mphprimary pitch CH 34%SI 33%FF 18%ST 14%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: 34% usage, 7″ horizontal break, 28″ drop, 91.0 mphCH91 mphSinker: 33% usage, 1″ horizontal break, 22″ drop, 98.1 mphSI98 mph4-Seam Fastball: 18% usage, 3″ horizontal break, 16″ drop, 97.9 mphFF98 mphSweeper: 14% usage, 3″ horizontal break, 37″ drop, 87.2 mphST87 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 36.3% 627 106 qualified
SI 34.1% 590 102 qualified
FB 15.7% 271 101 qualified
SL 13.9% 240 101 qualified
Method note

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

Reference layer

Current snapshot

Age22
Height6' 0"
Weight210 lb
Debut2026-03-26
Live layer

Delta / regression

ERA Δ-0.89
K% Δ+0.038

positive regression

Regression watch

Unlucky so far. Better days ahead.

1.1σ gap
wOBA-against (actual)0.309
xwOBA-against (deserved)0.281

Ureña’s wOBA-against sits at 0.309, but the quality of contact underneath says it should be 0.281 — a gap of 0.027, 1.1 standard deviations from the MLB norm over 152 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
Pitching222026-09-23Sinker played up through SI/ST tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202619.0% K | 3.63 ERAProjection
2026-03-26 @ HOU0 ER / 1 K0.2 IP