Mithrandir Metrics
Player New York Yankees Refreshed Sep 26 06:00 AM ET
Player profile / New York Yankees

Ryan Yarbrough

P · Bats/Throws R/L · 6' 5", 205 lb · Age 34

Cards
4
Modules
1
Live Δ
yes
Club New York Yankees Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024523.19440198.2651.03
2025314.36198164.0551.20
2026213.69382363.1491.22
9 Seasons58424.18253787895.17031.19
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.

2026-09-26
55
Pitching
percentile
Pitching9 metrics
58
Arsenal6 metrics
57
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-26
ERA preseason4.43
ERA current pace3.60
ERA rolling p503.97
Observed weight55%
ERA
2.78 3.35 3.97 4.60 5.16
FIP
3.31 3.59 3.89 4.19 4.46
K%
14.7% 16.0% 17.5% 18.9% 20.3%
BB%
6.4% 7.2% 8.1% 8.9% 9.7%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-26
Pitching · percentile strip
WHIP1.28
59
ERA3.60
66
BB%8.5%
55
K%17.3%
16
xwOBA allowed0.286
80 +34 vs proj
Barrel allowed3.3%
97 +52 vs proj
Fastball velo87.1
1
Hard-hit allowed26.3%
99
Whiff%22.2%
48
Mithrandir+

Stuff+ and arsenal context

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

2026-09-26
Cutter Stuff+104
76
Mithrandir Stuff+103
61
Changeup Stuff+111
97
Fastball Stuff+95
12
Sinker Stuff+104
67
Slider Stuff+99
29
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 Yarbrough, Ryan · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.286 2026-09-12: 0.2892026-09-13: 0.2832026-09-14: 0.2832026-09-18: 0.2792026-09-19: 0.2812026-09-20: 0.2812026-09-21: 0.2812026-09-22: 0.2812026-09-23: 0.2842026-09-24: 0.2842026-09-25: 0.2842026-09-26: 0.286 2026-09-12 2026-09-26 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.

5Pitches 2026Season 29%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 Yarbrough, Ryan · Aggregate zone metrics; not pitch-by-pitch locations Edge: 40%40%Zone: 51%51%Whiff: 22%22%Called strike: 17%17%First pitch strike: 49%49%Hard hit allowed: 26%26% 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 Yarbrough, Ryan · 2026 arsenal snapshot Cutter: 28.7%Changeup: 22.8%Sweeper: 19.3%4-Seam Fastball: 15.8%Sinker: 13.4% FC29% · 85 mphprimary pitch FC 29%CH 23%ST 19%FF 16%SI 13% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Yarbrough, Ryan · 2026 arsenal snapshot 12″24″36″48″ Cutter: 29% usage, 2″ horizontal break, 28″ drop, 84.9 mphFC85 mphChangeup: 23% usage, 16″ horizontal break, 45″ drop, 77.6 mphCH78 mphSweeper: 19% usage, 6″ horizontal break, 46″ drop, 71.6 mphST72 mph4-Seam Fastball: 16% usage, 2″ horizontal break, 24″ drop, 87.4 mphFF87 mphSinker: 13% usage, 11″ horizontal break, 30″ drop, 86.7 mphSI87 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FC 31.9% 220 104 qualified
CH 23.0% 159 111 limited sample
SL 18.7% 129 99 limited sample
FB 15.7% 108 95 limited sample
SI 10.7% 74 104 limited sample
Method note

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

Reference layer

Current snapshot

Age34
Height6' 5"
Weight205 lb
Debut2018-03-31
Live layer

Delta / regression

ERA Δ-0.83
K% Δ+0.005

positive regression

Regression watch

Unlucky so far. Better days ahead.

1.8σ gap
wOBA-against (actual)0.337
xwOBA-against (deserved)0.286

Yarbrough’s wOBA-against sits at 0.337, but the quality of contact underneath says it should be 0.286 — a gap of 0.052, 1.8 standard deviations from the MLB norm over 67 IP. The results have been worse than the process deserves; as the sample grows, expect the numbers to climb back toward the underlying level.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching42026-09-25Cutter played up through FC/CH tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202616.7% K | 4.43 ERAProjection
2026-04-12 @ TB1 ER / 1 K1.0 IP
2026-04-05 vs MIA0 ER / 3 K1.2 IP
2026-04-03 vs MIA0 ER / 0 K1.0 IP