Mithrandir Metrics
Player Boston Red Sox Refreshed Sep 28 06:00 AM ET
Player profile / Boston Red Sox

Garrett Whitlock

P · Bats/Throws R/R · 6' 5", 222 lb · Age 30

Cards
0
Modules
0
Live Δ
yes
Club Boston Red Sox Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024101.9644018.1171.15
2025732.25620172.0911.08
2026721.72540452.1590.90
6 Seasons32162.932192314366.04021.10
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
97
Pitching
percentile
Pitching9 metrics
90
Arsenal4 metrics
61
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 preseason3.65
ERA current pace1.72
ERA rolling p502.77
Observed weight46%
ERA
1.30 2.00 2.77 3.54 4.24
FIP
1.90 2.38 2.91 3.44 3.92
K%
24.4% 26.6% 29.0% 31.4% 33.6%
BB%
4.3% 5.4% 6.6% 7.7% 8.8%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-28
Pitching · percentile strip
WHIP0.89
98
ERA1.72
99
BB%4.5%
98 +40 vs proj
K%29.9%
92
xwOBA allowed0.251
96 +20 vs proj
Barrel allowed3.8%
95 +59 vs proj
Fastball velo94.9
57
Hard-hit allowed33.3%
86
Whiff%29.6%
92
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
Sinker Stuff+103
52
Changeup Stuff+104
70
Mithrandir Stuff+104
68
Slider Stuff+102
52
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 Whitlock, Garrett · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.251 2026-09-14: 0.2442026-09-18: 0.2472026-09-19: 0.2472026-09-20: 0.2472026-09-21: 0.2502026-09-22: 0.2502026-09-23: 0.2502026-09-24: 0.2512026-09-25: 0.2512026-09-26: 0.2512026-09-27: 0.2512026-09-28: 0.251 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.

3Pitches 2026Season 56%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 Whitlock, Garrett · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 50%50%Whiff: 30%30%Called strike: 14%14%First pitch strike: 56%56%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 Whitlock, Garrett · 2026 arsenal snapshot Sinker: 56.3%Slider: 25.6%Changeup: 18.1% SI56% · 95 mphprimary pitch SI 56%SL 26%CH 18% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Whitlock, Garrett · 2026 arsenal snapshot 12″24″36″48″ Sinker: 56% usage, 2″ horizontal break, 14″ drop, 94.9 mphSI95 mphSlider: 26% usage, 0″ horizontal break, 39″ drop, 86.1 mphSL86 mphChangeup: 18% usage, 12″ horizontal break, 38″ drop, 84.3 mphCH84 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SI 52.7% 254 103 qualified
SL 29.0% 140 102 limited sample
CH 18.3% 88 104 limited sample
Method note

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

Reference layer

Current snapshot

Age30
Height6' 5"
Weight222 lb
Debut2021-04-04
Live layer

Delta / regression

ERA Δ-1.89
K% Δ+0.021

negative regression

Regression watch

Running hot. Expect some cooling.

-0.4σ gap
wOBA-against (actual)0.238
xwOBA-against (deserved)0.251

Whitlock’s wOBA-against sits at 0.238, but the quality of contact underneath says it should be 0.251 — a gap of 0.014, -0.4 standard deviations from the MLB norm over 53 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
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

Pitcher Projections 202627.8% K | 3.61 ERAProjection
2026-04-20 vs DET0 ER / 0 K1.0 IP
2026-04-17 vs DET0 ER / 1 K1.0 IP
2026-04-15 @ MIN0 ER / 2 K1.0 IP
2026-04-11 @ STL1 ER / 2 K1.0 IP
2026-04-07 vs MIL0 ER / 1 K1.0 IP