Mithrandir Metrics
Player Boston Red Sox Refreshed Sep 1 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
2026612.00460245.0500.87
6 Seasons31152.992112312358.23931.10
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.

2026-09-01
96
Pitching
percentile
Pitching9 metrics
89
Arsenal4 metrics
49
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-01
ERA preseason3.65
ERA current pace2.04
ERA rolling p502.97
Observed weight42%
ERA
1.49 2.19 2.97 3.75 4.46
FIP
1.94 2.45 3.01 3.57 4.07
K%
23.8% 26.1% 28.7% 31.2% 33.5%
BB%
4.2% 5.3% 6.5% 7.7% 8.8%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-01
Pitching · percentile strip
WHIP0.85
98
ERA2.04
95
BB%4.0%
99 +41 vs proj
K%29.3%
91
xwOBA allowed0.248
96 +21 vs proj
Barrel allowed3.4%
95 +59 vs proj
Fastball velo95.0
57
Hard-hit allowed34.5%
79
Whiff%28.5%
87
Mithrandir+

Stuff+ and arsenal context

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

2026-09-01
Sinker Stuff+101
38
Changeup Stuff+102
51
Mithrandir Stuff+103
57
Slider Stuff+102
53
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 0.248 2026-08-21: 0.2472026-08-22: 0.2472026-08-23: 0.2472026-08-24: 0.2472026-08-25: 0.2472026-08-26: 0.2472026-08-27: 0.2472026-08-28: 0.2472026-08-29: 0.2472026-08-30: 0.2482026-08-31: 0.2482026-09-01: 0.248 2026-08-21 2026-09-01 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 57%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: 37%37%Zone: 50%50%Whiff: 28%28%Called strike: 14%14%First pitch strike: 53%53%Hard hit allowed: 34%34% 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: 56.7%Slider: 26.1%Changeup: 17.2% SI57% · 95 mphprimary pitch SI 57%SL 26%CH 17% 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: 57% usage, 2″ horizontal break, 14″ drop, 95.0 mphSI95 mphSlider: 26% usage, 0″ horizontal break, 39″ drop, 86.0 mphSL86 mphChangeup: 17% usage, 12″ horizontal break, 37″ drop, 84.3 mphCH84 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SI 53.6% 210 101 qualified
SL 30.1% 118 102 limited sample
CH 16.3% 64 102 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-1.57
K% Δ+0.015

negative regression

Regression watch

Running hot. Expect some cooling.

-0.4σ gap
wOBA-against (actual)0.235
xwOBA-against (deserved)0.248

Whitlock’s wOBA-against sits at 0.235, but the quality of contact underneath says it should be 0.248 — a gap of 0.013, -0.4 standard deviations from the MLB norm over 46 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