Mithrandir Metrics
Player New York Yankees Refreshed Sep 27 06:00 AM ET
Player profile / New York Yankees

Will Warren

P · Bats/Throws R/R · 6' 2", 200 lb · Age 27

Cards
30
Modules
1
Live Δ
yes
Club New York Yankees Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
20240310.3265022.2291.90
2025984.4433330162.11711.37
20261163.9232290156.01581.37
3 Seasons20174.5971670341.03581.40
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.

2026-09-27
55
Pitching
percentile
Pitching9 metrics
46
Arsenal6 metrics
72
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-27
ERA preseason4.08
ERA current pace3.92
ERA rolling p503.96
Observed weight75%
ERA
2.64 3.26 3.96 4.66 5.29
FIP
3.02 3.43 3.88 4.34 4.75
K%
21.5% 22.6% 23.7% 24.8% 25.8%
BB%
6.5% 7.1% 7.7% 8.3% 8.9%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-27
Pitching · percentile strip
WHIP1.33
51
ERA3.92
54
BB%7.8%
66
K%23.7%
63
xwOBA allowed0.320
41
Barrel allowed7.3%
52 +25 vs proj
Fastball velo93.6
35
Hard-hit allowed44.7%
11
Whiff%21.4%
41
Mithrandir+

Stuff+ and arsenal context

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

2026-09-27
Changeup Stuff+103
62
Fastball Stuff+108
87
Mithrandir Stuff+108
93
Sinker Stuff+105
69
Slider Stuff+112
98
Curveball Stuff+100
25
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 Warren, Will · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.320 2026-09-13: 0.3252026-09-14: 0.3252026-09-18: 0.3222026-09-19: 0.3222026-09-20: 0.3222026-09-21: 0.3242026-09-22: 0.3242026-09-23: 0.3242026-09-24: 0.3242026-09-25: 0.3242026-09-26: 0.3202026-09-27: 0.320 2026-09-13 2026-09-27 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.

6Pitches 2026Season 36%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 Warren, Will · Aggregate zone metrics; not pitch-by-pitch locations Edge: 37%37%Zone: 46%46%Whiff: 21%21%Called strike: 19%19%First pitch strike: 49%49%Hard hit allowed: 45%45% 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 Warren, Will · 2026 arsenal snapshot 4-Seam Fastball: 36.1%Sinker: 24.2%Sweeper: 20.2%Changeup: 13.3%Curveball: 5.8%Slider: 0.4% FF36% · 94 mphprimary pitch FF 36%SI 24%ST 20%CH 13%CU 6%SL 0% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Warren, Will · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 36% usage, 1″ horizontal break, 16″ drop, 93.8 mphFF94 mphSinker: 24% usage, 3″ horizontal break, 26″ drop, 93.3 mphSI93 mphSweeper: 20% usage, 2″ horizontal break, 40″ drop, 83.9 mphST84 mphChangeup: 13% usage, 13″ horizontal break, 36″ drop, 87.3 mphCH87 mphCurveball: 6% usage, 7″ horizontal break, 53″ drop, 81.3 mphCU81 mphSlider: 0% usage, 1″ horizontal break, 35″ drop, 86.7 mphSL87 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 37.3% 698 108 qualified
SI 22.8% 427 105 qualified
SL 21.4% 401 112 qualified
CH 13.3% 249 103 qualified
CB 5.1% 95 100 limited sample
Method note

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

Reference layer

Current snapshot

Age27
Height6' 2"
Weight200 lb
Debut2024-07-30
Live layer

Delta / regression

ERA Δ-0.39
K% Δ+0.009

positive regression

Regression watch

Unlucky so far. Better days ahead.

1.3σ gap
wOBA-against (actual)0.351
xwOBA-against (deserved)0.320

Warren’s wOBA-against sits at 0.351, but the quality of contact underneath says it should be 0.320 — a gap of 0.031, 1.3 standard deviations from the MLB norm over 164 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
Pitching302026-09-20Sweeper played up through ST/CH tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202622.8% K | 4.31 ERAProjection
2026-04-13 vs LAA0 ER / 6 K3.2 IP
2026-04-08 vs ATH2 ER / 5 K4.2 IP
2026-04-03 vs MIA2 ER / 6 K5.2 IP