Mithrandir Metrics
Player AZ Refreshed Sep 27 06:00 AM ET
Player profile / AZ

Adrian Del Castillo

Player · Bats/Throws L/R · 5' 9", 205 lb · Age 27

Cards
2
Modules
1
Live Δ
yes
Club AZ Position -- Roster profile Status Healthy / active roster
Traditional line

Season by season

3D Swing Sim Projections
PARHHRSBAVGOBPSLGOPS
202487122541.313.368.525.893
202513192940.242.290.392.682
2026197183551.193.246.309.555
3 Seasons4153989132.234.286.381.667
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
32
Offense
percentile
Offense9 metrics
33
Defense3 metrics
53
Speed1 metrics
22
Plate skills11 metrics
58
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-27
xwOBA preseason0.277
xwOBA current pace0.255
xwOBA rolling p500.267
Observed weight47%
xwOBA
0.221 0.243 0.267 0.291 0.312
wOBA
0.221 0.240 0.261 0.282 0.301
ISO
0.088 0.108 0.131 0.154 0.175
K%
25.4% 27.4% 29.7% 32.0% 34.1%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-27
Hitting · percentile strip
Barrel%4.1%
38 -18 vs proj
Exit velocity86.9
39
Hard-hit%36.5%
41 -26 vs proj
xBA0.287
18
xSLG0.477
43
xwOBA0.255
11 -35 vs proj
BB%6.6%
30
Bat speed69.9
53
K%28.6%
22
Defense · percentile strip
Blocking Runs0.6 · C
73
Catcher Throwing-0.9 · C
32
Framing Runs0.2 · C
56
Pop Time2.0 · C
Small sample
Baserunning · percentile strip
Sprint Speed26.3 · DH
22
SB Success Rate100.0% · DH
Small sample
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
Avoids Bad ChasesST 64.9% · rebadged research
48
Avoids Bad TakesHPT 25.5% · rebadged research
46
Correct Decisions66.0% · rebadged research
48
Mithrandir Stuff+77
4
Resists Breaking - horizontalwOBA 0.256 · borderline
96
Resists Breaking - verticalwOBA 0.272 · insufficient sample
75
Resists ChangeupwOBA 0.255 · validated thin sample
94
Resists Cutters + splitterswOBA 0.315 · insufficient sample
76
Resists FastballwOBA 0.321 · validated
81
Resists SinkerwOBA 0.371 · validated
22
SEAGER+ Plate Discipline100
46
Rolling form chart

xwOBA 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 Del Castillo, Adrian · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.302 0.255 2026-09-13: 0.2562026-09-14: 0.2562026-09-18: 0.2562026-09-19: 0.2562026-09-20: 0.2562026-09-21: 0.2562026-09-22: 0.2562026-09-23: 0.2562026-09-24: 0.2562026-09-25: 0.2562026-09-26: 0.2562026-09-27: 0.255 2026-09-13 2026-09-27 xwOBA 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.

2Pitches 2026Season 50%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 Swing Zone Profile Del Castillo, Adrian · Aggregate zone metrics; not pitch-by-pitch locations Zone: 48%48%Chase: 30%30%Whiff: 26%26%Zone contact: 85%85%Contact: 74%74%Hard hit: 37%37% 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 Del Castillo, Adrian · 2026 arsenal snapshot Eephus: 50.0%Other: 50.0% EP50% · 50 mphprimary pitch EP 50%FA 50% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Del Castillo, Adrian · 2026 arsenal snapshot 24″48″72″96″ Eephus: 50% usage, 2″ horizontal break, 96″ drop, 50.3 mphEP50 mphOther: 50% usage, 1″ horizontal break, 82″ drop, 53.3 mphFA53 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 56.2% 9 85 limited sample
CB 43.8% 7 85 limited sample
Method note

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

Reference layer

Current snapshot

MLB bio context is unavailable.
Live layer

Delta / regression

xwOBA Δ-0.045
wOBA Δ-0.038

negative regression

Regression watch

Running hot. Expect some cooling.

-0.2σ gap
wOBA (actual)0.261
xwOBA (deserved)0.255

Castillo’s wOBA sits at 0.261, but the quality of contact underneath says it should be 0.255 — a gap of 0.006, -0.2 standard deviations from the MLB norm over 196 PA. The results have outrun the underlying process; as the sample grows, expect the numbers to drift back toward the deserved level.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Hitting22026-07-23Impact contact was the main driver
Projection links / recent games

Available detail

Hitter Projections 20260.300 xwOBA | 9 HRProjection