Mithrandir Metrics
Player Tampa Bay Rays Refreshed Jun 1 06:00 AM ET
Player profile / Tampa Bay Rays

Kevin Kelly

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

Cards
0
Modules
0
Live Δ
yes
Club Tampa Bay Rays 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 preseason3.54
ERA current pace2.92
ERA rolling p503.35
Observed weight30%
ERA
1.72 2.50 3.35 4.21 4.98
FIP
2.48 3.09 3.76 4.44 5.05
K%
15.6% 18.0% 20.8% 23.6% 26.1%
BB%
2.8% 4.0% 5.3% 6.7% 7.9%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%4.8%
95
Barrel allowed7.7%
51
Fastball velo91.5
12
Hard-hit allowed44.9%
17
K%18.1%
20 -22 vs proj
Whiff%16.3%
7 -22 vs proj
xwOBA allowed0.298
65 +20 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
89
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 Kelly, Kevin · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 2026-05-17: 0.2812026-05-19: 0.2822026-05-21: 0.2882026-05-23: 0.2892026-05-24: 0.2892026-05-25: 0.3072026-05-26: 0.3072026-05-28: 0.3072026-05-29: 0.3072026-05-30: 0.3072026-05-31: 0.2982026-06-01: 0.298 2026-05-17 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.

5Pitches 2026Season 60%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 Kelly, Kevin · Aggregate zone metrics; not pitch-by-pitch locations Edge: 33%33%Zone: 50%50%Whiff: 16%16%Called strike: 19%19%First pitch strike: 55%55%Hard hit allowed: 45%45% 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 Kelly, Kevin · 2026 arsenal snapshot Sinker: 59.9%Changeup: 20.9%Sweeper: 13.3%4-Seam Fastball: 4.4%Cutter: 1.5% MIX SI 60%CH 21%ST 13%FF 4%FC 1% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Kelly, Kevin · 2026 arsenal snapshot SI: HB 0.3, IVB 3.1SICH: HB -0.3, IVB 3.8CHST: HB -1.2, IVB 3.3STFF: HB -0.6, IVB 1.8FFFC: HB -0.1, IVB 2.1FC horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SI 61.3% 222 107 qualified
CH 21.0% 76 102 limited sample
SL 12.2% 44 108 limited sample
FB 4.7% 17 96 limited sample
FC 0.8% 3 92 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' 2"
Weight195 lb
Debut2023-04-01
Live layer

Delta / regression

ERA Δ-1.06
K% Δ-0.031
Mithrandir coverage

Module shelf

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

Available detail

Pitcher Projections 202621.2% K | 4.00 ERAProjection
2026-04-12 vs NYY0 ER / 0 K1.2 IP
2026-04-11 vs NYY0 ER / 1 K0.1 IP
2026-04-06 vs CHC0 ER / 1 K1.0 IP
2026-04-05 @ MIN0 ER / 1 K1.0 IP
2026-04-03 @ MIN5 ER / 1 K0.1 IP