Mithrandir Metrics
Player Tampa Bay Rays Refreshed Jul 17 06:00 AM ET
Player profile / Tampa Bay Rays

Casey Legumina

P · Bats/Throws R/R · 6' 2", 195 lb · Age 29

Cards
1
Modules
1
Live Δ
yes
Club Tampa Bay Rays Position P Roster Active Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024008.686009.171.82
2025465.62481049.2551.45
2026223.89312039.1281.30
4 Seasons785.279630111.01011.49
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.

2026-07-17
43
Pitching
percentile
Pitching9 metrics
38
Arsenal5 metrics
67
Rolling projection

Preseason / current pace / Bayesian update

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

2026-07-17
ERA preseason4.58
ERA current pace3.89
ERA rolling p504.29
Observed weight43%
ERA
2.59 3.39 4.29 5.18 5.99
FIP
3.33 3.79 4.30 4.81 5.27
K%
16.2% 18.0% 20.0% 22.0% 23.8%
BB%
5.5% 6.7% 7.9% 9.2% 10.3%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-07-17
Pitching · percentile strip
WHIP1.29
56
ERA3.89
52
BB%6.7%
79 +35 vs proj
K%16.2%
11 -42 vs proj
xwOBA allowed0.347
19
Barrel allowed9.0%
30 -16 vs proj
Fastball velo93.4
31
Hard-hit allowed39.1%
49
Whiff%18.6%
15 -30 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-07-17
Changeup Stuff+96
15
Fastball Stuff+105
73
Mithrandir Stuff+106
82
Sinker Stuff+106
79
Slider Stuff+107
84
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 Legumina, Casey · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 0.347 2026-07-06: 0.3362026-07-07: 0.3362026-07-08: 0.3292026-07-09: 0.3292026-07-10: 0.3292026-07-11: 0.3422026-07-12: 0.3422026-07-13: 0.3442026-07-14: 0.3442026-07-15: 0.3442026-07-16: 0.3472026-07-17: 0.347 2026-07-06 2026-07-17 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 42%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 Legumina, Casey · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 48%48%Whiff: 19%19%Called strike: 15%15%First pitch strike: 55%55%Hard hit allowed: 39%39% 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 Legumina, Casey · 2026 arsenal snapshot 4-Seam Fastball: 41.9%Sinker: 19.4%Sweeper: 14.3%Slider: 12.3%Changeup: 12.1% FF42% · 93 mphprimary pitch FF 42%SI 19%ST 14%SL 12%CH 12% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Legumina, Casey · 2026 arsenal snapshot 12″24″36″48″ 4-Seam Fastball: 42% usage, 5″ horizontal break, 17″ drop, 93.4 mphFF93 mphSinker: 19% usage, 11″ horizontal break, 22″ drop, 93.2 mphSI93 mphSweeper: 14% usage, 2″ horizontal break, 38″ drop, 79.8 mphST80 mphSlider: 12% usage, 2″ horizontal break, 33″ drop, 85.4 mphSL85 mphChangeup: 12% usage, 15″ horizontal break, 35″ drop, 87.2 mphCH87 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 40.2% 146 105 limited sample
SL 28.9% 105 107 limited sample
SI 20.9% 76 106 limited sample
CH 9.9% 36 96 limited sample
Method note

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

Reference layer

Current snapshot

Age29
Height6' 2"
Weight195 lb
Debut2023-04-15
Live layer

Delta / regression

ERA Δ-0.84
K% Δ-0.067

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.4σ gap
wOBA-against (actual)0.361
xwOBA-against (deserved)0.347

Legumina’s wOBA-against sits at 0.361, but the quality of contact underneath says it should be 0.347 — a gap of 0.014, 0.4 standard deviations from the MLB norm over 42 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
Pitching12026-06-25Run prevention outpaced the underlying contact signals
Projection links / recent games

Available detail

Pitcher Projections 202622.9% K | 4.73 ERAProjection
2026-04-20 vs ATH3 ER / 0 K1.0 IP
2026-04-17 vs TEX2 ER / 2 K2.1 IP
2026-04-14 @ SD1 ER / 1 K1.0 IP
2026-04-11 vs HOU0 ER / 2 K1.2 IP
2026-04-05 @ LAA0 ER / 0 K2.0 IP