Mithrandir Metrics
Player San Francisco Giants Refreshed Sep 27 06:00 AM ET
Player profile / San Francisco Giants

Keaton Winn

P · Bats/Throws R/R · 6' 4", 230 lb · Age 28

Cards
0
Modules
0
Live Δ
yes
Club San Francisco Giants Position P Roster Current MLB team Status IL-60
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024387.161212055.1481.37
2025004.5070010.091.40
2026233.35440143.0331.19
4 Seasons6145.2072172150.21251.23
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
52
Pitching
percentile
Pitching9 metrics
61
Arsenal4 metrics
56
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.

2026-09-27
Pitching · percentile strip
WHIP1.21
70
ERA3.35
74
BB%9.9%
38
K%18.2%
23
xwOBA allowed0.308
56
Barrel allowed4.8%
88
Fastball velo95.8
72
Hard-hit allowed33.6%
85
Whiff%21.4%
40
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
Fastball Stuff+103
60
Mithrandir Stuff+105
74
Sinker Stuff+108
88
Slider Stuff+91
3
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 Winn, Keaton · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.308 2026-09-13: 0.3082026-09-14: 0.3082026-09-18: 0.3082026-09-19: 0.3082026-09-20: 0.3082026-09-21: 0.3082026-09-22: 0.3082026-09-23: 0.3082026-09-24: 0.3082026-09-25: 0.3082026-09-26: 0.3082026-09-27: 0.308 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 46%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 Winn, Keaton · Aggregate zone metrics; not pitch-by-pitch locations Edge: 37%37%Zone: 49%49%Whiff: 21%21%Called strike: 17%17%First pitch strike: 49%49%Hard hit allowed: 34%34% 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 Winn, Keaton · 2026 arsenal snapshot Split-Finger: 45.8%4-Seam Fastball: 24.8%Sinker: 22.1%Slider: 7.3% FS46% · 89 mphprimary pitch FS 46%FF 25%SI 22%SL 7% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Winn, Keaton · 2026 arsenal snapshot 9″18″27″36″ Split-Finger: 46% usage, 0″ horizontal break, 34″ drop, 89.3 mphFS89 mph4-Seam Fastball: 25% usage, 2″ horizontal break, 15″ drop, 96.1 mphFF96 mphSinker: 22% usage, 10″ horizontal break, 23″ drop, 95.4 mphSI95 mphSlider: 7% usage, 1″ horizontal break, 32″ drop, 88.4 mphSL88 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 47.8% 97 103 limited sample
SI 42.9% 87 108 limited sample
SL 9.4% 19 91 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' 4"
Weight230 lb
Debut2023-06-13
Live layer

Delta / regression

ERA Δ--
K% Δ--

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.0σ gap
wOBA-against (actual)0.309
xwOBA-against (deserved)0.308

Winn’s wOBA-against sits at 0.309, but the quality of contact underneath says it should be 0.308 — a gap of 0.001, 0.0 standard deviations from the MLB norm over 43 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
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

2026-05-20 @ AZ0 ER / 3 K1.0 IP
2026-04-14 @ CIN0 ER / 2 K1.0 IP
2026-04-07 vs PHI0 ER / 0 K1.0 IP
2026-04-05 vs NYM2 ER / 0 K0.1 IP
2026-04-04 vs NYM1 ER / 1 K1.0 IP