Mithrandir Metrics
Player New York Mets Refreshed Sep 1 06:00 AM ET
Player profile / New York Mets

Jefry Yan

P · Bats/Throws L/L · 6' 3", 185 lb · Age 30

Cards
0
Modules
0
Live Δ
--
Club New York Mets Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2026113.60100010.0111.60
1 Seasons113.60100010.0111.60
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.

2026-09-01
14
Pitching
percentile
Arsenal4 metrics
14
Rolling projection

Preseason / current pace / Bayesian update

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

Pending

Rolling player projection appears after current-season Statcast and projection joins refresh.

Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-01
Mithrandir+

Stuff+ and arsenal context

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

2026-09-01
Fastball Stuff+100
34
Mithrandir Stuff+93
9
Sinker Stuff+95
10
Slider Stuff+74
1
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 49%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 Yan, Jefry · Aggregate zone metrics; not pitch-by-pitch locations Edge: 37%37%Zone: 41%41%Whiff: 32%32%Called strike: 17%17%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 Yan, Jefry · 2026 arsenal snapshot Sinker: 49.1%Slider: 25.4%4-Seam Fastball: 21.9%Changeup: 3.6% SI49% · 98 mphprimary pitch SI 49%SL 25%FF 22%CH 4% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Yan, Jefry · 2026 arsenal snapshot 12″24″36″48″ Sinker: 49% usage, 2″ horizontal break, 17″ drop, 97.9 mphSI98 mphSlider: 25% usage, 1″ horizontal break, 40″ drop, 86.5 mphSL86 mph4-Seam Fastball: 22% usage, 4″ horizontal break, 12″ drop, 97.7 mphFF98 mphChangeup: 4% usage, 14″ horizontal break, 26″ drop, 90.3 mphCH90 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SI 48.9% 69 95 limited sample
SL 26.2% 37 74 limited sample
FB 20.6% 29 100 limited sample
CH 4.3% 6 110 limited sample
Method note

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

Reference layer

Current snapshot

Age30
Height6' 3"
Weight185 lb
Debut2026-08-05
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

2026-08-15 vs WSH0 ER / 3 K1.2 IP