Mithrandir Metrics
Player San Diego Padres Refreshed Jun 2 06:00 AM ET
Player profile / San Diego Padres

Yuki Matsui

P profile with live context, projection links, and Mithrandir card history when available.

Cards
0
Modules
0
Live Δ
--
Club San Diego Padres Position P Roster Active Status Healthy / active roster
Rolling projection

Preseason / current pace / Bayesian update

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

2026-06-02
ERA preseason4.02
ERA current pace0.00
ERA rolling p503.24
Observed weight19%
ERA
1.61 2.38 3.24 4.10 4.87
FIP
2.64 3.18 3.77 4.37 4.90
K%
19.8% 22.5% 25.5% 28.5% 31.2%
BB%
6.9% 8.6% 10.6% 12.6% 14.4%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-02
Mithrandir+

Stuff+ and arsenal context

Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; missing coverage is shown explicitly.

2026-06-02
Mithrandir Stuff+99
30
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.

5Pitches 2026Season 41%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 Matsui, Yuki · Aggregate zone metrics; not pitch-by-pitch locations Edge: 34%34%Zone: 43%43%Whiff: 39%39%Called strike: 15%15%First pitch strike: 52%52%Hard hit allowed: 30%30% 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.

2026
Mithrandir Metrics PITCH ARSENAL DONUT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Matsui, Yuki · 2026 arsenal snapshot 4-Seam Fastball: 40.7%Split-Finger: 27.1%Slider: 21.5%Sweeper: 7.5%Sinker: 3.3% MIX FF 41%FS 27%SL 21%ST 7%SI 3% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Matsui, Yuki · 2026 arsenal snapshot FF: HB 0.1, IVB 1.1FFFS: HB -0.4, IVB 3.1FSSL: HB -0.2, IVB 2.7SLST: HB -1.0, IVB 3.8STSI: HB 0.9, IVB 1.9SI horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 56.3% 80 103 limited sample
SL 39.4% 56 99 limited sample
SI 4.2% 6 90 limited sample
Method note

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

Reference layer

Current snapshot

Age30
Height5' 8"
Weight165 lb
Debut2024-03-20
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 202623.5% K | 4.06 ERAProjection
2026-05-20 vs LAD0 ER / 2 K1.1 IP