Mithrandir Metrics
Player Seattle Mariners Refreshed Sep 27 06:00 AM ET
Player profile / Seattle Mariners

Hoby Milner

P · Bats/Throws L/L · 6' 3", 187 lb · Age 35

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

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024514.73611164.2641.19
2025343.84730070.1581.27
2026103.64440142.0251.24
10 Seasons1493.8041112383.13461.23
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
47
Pitching
percentile
Pitching9 metrics
40
Arsenal5 metrics
62
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 preseason4.21
ERA current pace3.83
ERA rolling p504.05
Observed weight42%
ERA
2.66 3.32 4.05 4.78 5.44
FIP
3.03 3.51 4.04 4.57 5.04
K%
13.2% 15.1% 17.2% 19.3% 21.1%
BB%
4.2% 5.3% 6.4% 7.6% 8.7%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-27
Pitching · percentile strip
WHIP1.24
66
ERA3.83
58
BB%5.7%
91
K%14.8%
6
xwOBA allowed0.350
15 -41 vs proj
Barrel allowed5.9%
76 +19 vs proj
Fastball velo86.9
1
Hard-hit allowed39.7%
41
Whiff%15.8%
4
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+102
48
Fastball Stuff+99
31
Mithrandir Stuff+105
77
Sinker Stuff+106
77
Slider Stuff+105
78
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 Milner, Hoby · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.350 2026-09-13: 0.3532026-09-14: 0.3532026-09-18: 0.3532026-09-19: 0.3532026-09-20: 0.3532026-09-21: 0.3532026-09-22: 0.3532026-09-23: 0.3532026-09-24: 0.3532026-09-25: 0.3532026-09-26: 0.3502026-09-27: 0.350 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.

4Pitches 2026Season 40%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 Milner, Hoby · Aggregate zone metrics; not pitch-by-pitch locations Edge: 39%39%Zone: 50%50%Whiff: 16%16%Called strike: 20%20%First pitch strike: 54%54%Hard hit allowed: 40%40% 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 Milner, Hoby · 2026 arsenal snapshot Sinker: 39.9%Sweeper: 28.0%Changeup: 17.8%4-Seam Fastball: 14.3% SI40% · 87 mphprimary pitch SI 40%ST 28%CH 18%FF 14% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Milner, Hoby · 2026 arsenal snapshot 12″24″36″48″ Sinker: 40% usage, 1″ horizontal break, 36″ drop, 86.8 mphSI87 mphSweeper: 28% usage, 4″ horizontal break, 45″ drop, 78.2 mphST78 mphChangeup: 18% usage, 11″ horizontal break, 45″ drop, 80.5 mphCH81 mph4-Seam Fastball: 14% usage, 0″ horizontal break, 30″ drop, 87.1 mphFF87 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SI 42.0% 196 106 limited sample
SL 26.3% 123 105 limited sample
CH 19.7% 92 102 limited sample
FB 12.0% 56 99 limited sample
Method note

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

Reference layer

Current snapshot

Age35
Height6' 3"
Weight187 lb
Debut2017-06-24
Live layer

Delta / regression

ERA Δ-0.07
K% Δ-0.032

negative regression

Regression watch

Running hot. Expect some cooling.

-0.2σ gap
wOBA-against (actual)0.342
xwOBA-against (deserved)0.350

Milner’s wOBA-against sits at 0.342, but the quality of contact underneath says it should be 0.350 — a gap of 0.008, -0.2 standard deviations from the MLB norm over 42 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 202618.0% K | 3.90 ERAProjection
2026-05-20 vs MIL0 ER / 1 K1.1 IP
2026-04-20 vs PHI0 ER / 0 K1.1 IP
2026-04-17 vs NYM0 ER / 0 K1.0 IP
2026-04-11 vs PIT0 ER / 0 K1.0 IP
2026-04-08 @ TB0 ER / 1 K1.0 IP