Mithrandir Metrics
Player LAD Refreshed Sep 28 06:00 AM ET
Player profile / LAD

Brock Stewart

Player · Bats/Throws L/R · 6' 3", 220 lb · Age 34

Cards
1
Modules
1
Live Δ
yes
Club LAD Position -- Roster profile Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024005.17160015.2201.47
2025222.63430037.2441.19
2026122.70281126.2251.01
8 Seasons1174.26161123213.12151.38
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
77
Pitching
percentile
Pitching9 metrics
80
Arsenal6 metrics
68
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 preseason3.13
ERA current pace2.46
ERA rolling p502.93
Observed weight30%
ERA
1.24 2.04 2.93 3.82 4.62
FIP
2.30 2.80 3.36 3.92 4.42
K%
18.6% 21.2% 24.2% 27.2% 29.8%
BB%
5.9% 7.5% 9.1% 10.8% 12.3%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-28
Pitching · percentile strip
WHIP1.03
91
ERA2.46
92
BB%9.6%
42
K%24.0%
66
xwOBA allowed0.247
97 +35 vs proj
Barrel allowed4.4%
91 +20 vs proj
Fastball velo95.5
68
Hard-hit allowed27.9%
98
Whiff%26.1%
75
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
Changeup Stuff+109
94
Cutter Stuff+95
6
Fastball Stuff+105
68
Mithrandir Stuff+105
81
Sinker Stuff+105
72
Slider Stuff+107
85
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 Stewart, Brock · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.247 2026-09-14: 0.2502026-09-18: 0.2492026-09-19: 0.2492026-09-20: 0.2492026-09-21: 0.2452026-09-22: 0.2452026-09-23: 0.2472026-09-24: 0.2472026-09-25: 0.2472026-09-26: 0.2472026-09-27: 0.2482026-09-28: 0.247 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.

5Pitches 2026Season 37%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 Stewart, Brock · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 47%47%Whiff: 26%26%Called strike: 16%16%First pitch strike: 49%49%Hard hit allowed: 28%28% 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 Stewart, Brock · 2026 arsenal snapshot 4-Seam Fastball: 36.9%Sweeper: 24.9%Changeup: 14.9%Sinker: 14.4%Cutter: 8.9% FF37% · 96 mphprimary pitch FF 37%ST 25%CH 15%SI 14%FC 9% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Stewart, Brock · 2026 arsenal snapshot 12″24″36″48″ 4-Seam Fastball: 37% usage, 0″ horizontal break, 16″ drop, 95.9 mphFF96 mphSweeper: 25% usage, 13″ horizontal break, 36″ drop, 83.8 mphST84 mphChangeup: 15% usage, 15″ horizontal break, 35″ drop, 89.3 mphCH89 mphSinker: 14% usage, 15″ horizontal break, 27″ drop, 94.7 mphSI95 mphCutter: 9% usage, 2″ horizontal break, 24″ drop, 92.2 mphFC92 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 41.4% 82 105 limited sample
SL 25.3% 50 107 limited sample
SI 13.1% 26 105 limited sample
CH 12.1% 24 109 limited sample
FC 8.1% 16 95 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-1.08
K% Δ-0.016
Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching12026-09-22Command and chase profile drove the outing
Projection links / recent games

Available detail

Pitcher Projections 202625.6% K | 3.54 ERAProjection