Mithrandir Metrics
Player San Francisco Giants Refreshed Jun 1 06:00 AM ET
Player profile / San Francisco Giants

Keaton Winn

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

Cards
0
Modules
0
Live Δ
yes
Club San Francisco Giants 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.

2026-06-01
ERA preseason4.59
ERA current pace1.85
ERA rolling p503.78
Observed weight30%
ERA
1.67 2.67 3.78 4.89 5.89
FIP
2.84 3.28 3.77 4.25 4.69
K%
16.7% 18.8% 21.2% 23.5% 25.7%
BB%
5.5% 6.5% 7.6% 8.7% 9.6%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%8.9%
47 -17 vs proj
Barrel allowed2.9%
95 +45 vs proj
Fastball velo96.1
76
Hard-hit allowed27.5%
97
K%21.8%
48
Whiff%24.1%
60
xwOBA allowed0.247
94 +48 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-06-01
Mithrandir Stuff+107
85
Rolling form chart

xwOBA allowed snapshot line

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

11 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 0.314 2026-05-19: 0.2122026-05-21: 0.2142026-05-23: 0.2052026-05-24: 0.2052026-05-25: 0.2172026-05-26: 0.2172026-05-28: 0.2212026-05-29: 0.2212026-05-30: 0.2212026-05-31: 0.2472026-06-01: 0.247 2026-05-19 2026-06-01 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 51%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: 36%36%Zone: 51%51%Whiff: 24%24%Called strike: 17%17%First pitch strike: 50%50%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.

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: 50.9%4-Seam Fastball: 24.3%Sinker: 21.1%Slider: 3.7% MIX FS 51%FF 24%SI 21%SL 4% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Winn, Keaton · 2026 arsenal snapshot FS: HB 0.1, IVB 2.9FSFF: HB -0.2, IVB 1.2FFSI: HB 0.9, IVB 1.9SISL: HB -0.0, IVB 2.7SL horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 49.1% 82 104 limited sample
SI 45.5% 76 109 limited sample
SL 5.4% 9 86 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-3.05
K% Δ+0.010
Mithrandir coverage

Module shelf

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

Available detail

Pitcher Projections 202620.8% K | 4.90 ERAProjection
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