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

Matt Brash

P · Bats/Throws R/R · 6' 1", 173 lb · Age 28

Cards
0
Modules
0
Live Δ
--
Club Seattle Mariners Position P Roster Current MLB team Status IL-60
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2023943.06780470.21071.33
2025132.47530447.1581.25
2026300.54200016.2150.84
4 Seasons17113.0619058185.12421.33
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
82
Pitching
percentile
Arsenal5 metrics
82
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 preseason3.39
ERA current pace0.54
ERA rolling p502.69
Observed weight25%
ERA
1.25 1.93 2.69 3.44 4.12
FIP
2.34 2.90 3.51 4.13 4.69
K%
21.0% 23.8% 26.8% 29.8% 32.6%
BB%
6.5% 8.2% 10.0% 11.9% 13.5%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-27
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+108
90
Fastball Stuff+100
37
Mithrandir Stuff+108
94
Sinker Stuff+110
97
Slider Stuff+108
90
Rolling form chart

xwOBA allowed snapshot line

Live snapshot series; true 50/100 PA windows require PA-level logs

0 snapshots
No chart yet

No Live State xwOBA snapshots are available for this player.

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 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 Brash, Matt · Aggregate zone metrics; not pitch-by-pitch locations Edge: 40%40%Zone: 43%43%Whiff: 31%31%Called strike: 18%18%First pitch strike: 48%48%Hard hit allowed: 39%39% 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 Brash, Matt · 2026 arsenal snapshot Slider: 56.7%Sinker: 22.9%Changeup: 15.0%4-Seam Fastball: 5.3% SL57% · 87 mphprimary pitch SL 57%SI 23%CH 15%FF 5% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Brash, Matt · 2026 arsenal snapshot 12″24″36″48″ Slider: 57% usage, 1″ horizontal break, 37″ drop, 86.6 mphSL87 mphSinker: 23% usage, 2″ horizontal break, 21″ drop, 96.9 mphSI97 mphChangeup: 15% usage, 7″ horizontal break, 35″ drop, 90.3 mphCH90 mph4-Seam Fastball: 5% usage, 1″ horizontal break, 16″ drop, 96.4 mphFF96 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 58.5% 120 108 limited sample
SI 20.0% 41 110 limited sample
CH 13.7% 28 108 limited sample
FB 7.8% 16 100 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"
Weight173 lb
Debut2022-04-12
Live layer

Delta / regression

No Live State delta is available for this profile yet.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

Pitcher Projections 202628.1% K | 3.42 ERAProjection
2026-05-20 vs CWS0 ER / 2 K1.0 IP
2026-04-20 vs ATH0 ER / 1 K1.0 IP
2026-04-13 vs HOU0 ER / 0 K0.1 IP
2026-04-11 vs HOU0 ER / 0 K1.0 IP
2026-04-05 @ LAA0 ER / 1 K1.0 IP