Mithrandir Metrics
Player Milwaukee Brewers Refreshed Sep 29 06:00 AM ET
Player profile / Milwaukee Brewers

Dl Hall

P · Bats/Throws L/L · 6' 1", 209 lb · Age 28

Cards
3
Modules
1
Live Δ
yes
Club Milwaukee Brewers Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024125.02137043.0441.60
2025103.49203038.2271.06
2026401.91471061.1641.04
5 Seasons1033.48109121176.01771.25
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.

2026-09-29
70
Pitching
percentile
Pitching9 metrics
72
Arsenal6 metrics
52
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-29
ERA preseason4.10
ERA current pace1.96
ERA rolling p502.99
Observed weight52%
ERA
1.93 2.43 2.99 3.54 4.04
FIP
2.98 3.41 3.89 4.37 4.80
K%
21.2% 22.6% 24.2% 25.8% 27.2%
BB%
9.3% 10.2% 11.2% 12.2% 13.1%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-29
Pitching · percentile strip
WHIP1.06
89
ERA1.96
96
BB%13.4%
9 -36 vs proj
K%26.4%
79 +37 vs proj
xwOBA allowed0.287
79 +35 vs proj
Barrel allowed6.6%
64 +21 vs proj
Fastball velo95.3
65
Hard-hit allowed32.5%
89
Whiff%26.0%
75 +32 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-09-29
Mithrandir Stuff+102
51
Sinker Stuff+99
30
Changeup Stuff+102
50
Curveball Stuff+106
94
Fastball Stuff+97
18
Slider Stuff+104
72
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 Hall, Dl · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.287 2026-09-18: 0.2752026-09-19: 0.2742026-09-20: 0.2742026-09-21: 0.2792026-09-22: 0.2792026-09-23: 0.2792026-09-24: 0.2852026-09-25: 0.2852026-09-26: 0.2852026-09-27: 0.2852026-09-28: 0.2872026-09-29: 0.287 2026-09-18 2026-09-29 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.

7Pitches 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 Hall, Dl · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 48%48%Whiff: 26%26%Called strike: 19%19%First pitch strike: 52%52%Hard hit allowed: 32%32% 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 Hall, Dl · 2026 arsenal snapshot Sinker: 35.9%Curveball: 16.9%Changeup: 16.1%4-Seam Fastball: 11.5%Slider: 9.8%Sweeper: 7.9% SI36% · 95 mphprimary pitch SI 36%CU 17%CH 16%FF 12%SL 10%ST 8% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Hall, Dl · 2026 arsenal snapshot 15″30″45″60″ Sinker: 36% usage, 3″ horizontal break, 20″ drop, 95.4 mphSI95 mphCurveball: 17% usage, 8″ horizontal break, 53″ drop, 81.9 mphCU82 mphChangeup: 16% usage, 15″ horizontal break, 31″ drop, 85.1 mphCH85 mph4-Seam Fastball: 12% usage, 0″ horizontal break, 16″ drop, 95.0 mphFF95 mphSlider: 10% usage, 5″ horizontal break, 37″ drop, 87.7 mphSL88 mphSweeper: 8% usage, 16″ horizontal break, 38″ drop, 84.7 mphST85 mphCutter: 2% usage, 2″ horizontal break, 26″ drop, 91.2 mphFC91 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SI 36.0% 328 99 qualified
SL 18.8% 171 104 limited sample
CB 16.7% 152 106 limited sample
CH 15.2% 139 102 limited sample
FB 12.5% 114 97 limited sample
FC 0.9% 8 92 limited sample
Method note

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

Reference layer

Current snapshot

Age28
Height6' 1"
Weight209 lb
Debut2022-08-13
Live layer

Delta / regression

ERA Δ-2.14
K% Δ+0.054

negative regression

Regression watch

Running hot. Expect some cooling.

-0.1σ gap
wOBA-against (actual)0.283
xwOBA-against (deserved)0.287

Hall’s wOBA-against sits at 0.283, but the quality of contact underneath says it should be 0.287 — a gap of 0.004, -0.1 standard deviations from the MLB norm over 65 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
Pitching32026-04-22Sinker played up through SI/CH tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202621.0% K | 4.10 ERAProjection
2026-05-20 @ CHC0 ER / 2 K2.0 IP
2026-04-17 @ MIA1 ER / 1 K0.2 IP
2026-04-15 vs TOR0 ER / 0 K0.1 IP
2026-04-14 vs TOR0 ER / 0 K0.2 IP
2026-04-11 vs WSH0 ER / 0 K0.1 IP