Mithrandir Metrics
Player Chicago White Sox Refreshed Sep 27 06:00 AM ET
Player profile / Chicago White Sox

Luisangel Acuña

SS · Bats/Throws R/R · 5' 7", 181 lb · Age 24

Cards
0
Modules
0
Live Δ
yes
Club Chicago White Sox Position SS Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Swing Sim Projections
PARHHRSBAVGOBPSLGOPS
20244061230.308.325.641.966
20251933041016.234.293.274.567
20262242348218.229.261.276.537
3 Seasons45759101534.238.280.309.589
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
30
Offense
percentile
Offense9 metrics
32
Defense4 metrics
70
Speed4 metrics
72
Plate skills11 metrics
62
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 preseason0.303
xwOBA current pace0.268
xwOBA rolling p500.285
Observed weight52%
xwOBA
0.255 0.269 0.285 0.300 0.315
wOBA
0.236 0.253 0.273 0.292 0.310
ISO
0.053 0.071 0.090 0.109 0.127
K%
15.2% 16.7% 18.4% 20.0% 21.5%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-27
Hitting · percentile strip
Barrel%2.9%
22
Exit velocity87.0
41
Hard-hit%36.8%
43
xBA0.311
40
xSLG0.408
15
xwOBA0.268
18 -25 vs proj
BB%4.1%
9 -17 vs proj
Bat speed67.8
28
K%18.7%
74
Defense · percentile strip
Arm Runs0.5 · SS
95
Arm Strength94.6 · SS
95
Outs Above Avg0.0 · SS
47
Range Runs-0.8 · SS
45
Baserunning · percentile strip
Base Running Runs1.0 · SS
62
Bolts43.0 · SS
90
SB Success Rate76.2% · SS
37
Sprint Speed29.8 · SS
98
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 62.3% · rebadged research
33
Avoids Bad TakesHPT 23.1% · rebadged research
72
Correct Decisions64.8% · rebadged research
35
Mithrandir Stuff+72
4
Resists Breaking - horizontalwOBA 0.262 · borderline
92
Resists Breaking - verticalwOBA 0.274 · insufficient sample
68
Resists ChangeupwOBA 0.260 · validated thin sample
89
Resists Cutters + splitterswOBA 0.317 · insufficient sample
74
Resists FastballwOBA 0.323 · validated
78
Resists SinkerwOBA 0.335 · validated
88
SEAGER+ Plate Discipline100
44
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 Acuña, Luisangel · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.302 0.268 2026-09-13: 0.2662026-09-14: 0.2662026-09-18: 0.2642026-09-19: 0.2642026-09-20: 0.2642026-09-21: 0.2642026-09-22: 0.2642026-09-23: 0.2632026-09-24: 0.2632026-09-25: 0.2632026-09-26: 0.2632026-09-27: 0.268 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.

4Pitches 2026Season 86%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 Acuña, Luisangel · Aggregate zone metrics; not pitch-by-pitch locations Zone: 47%47%Chase: 34%34%Whiff: 23%23%Zone contact: 88%88%Contact: 77%77%Hard hit: 37%37% Dashed border = aggregate mixed-batter zone proxy MITHRANDIR · CHARTS
Bat tracking

Swing path, attack angle, bat speed

Aggregate Savant bat-tracking metrics; not per-swing motion capture. The full swing, with the recommended path overlaid, lives in the 3D Swing Simulator.

Watch the swing in 3D →

2026
Mithrandir Metrics BAT SPEED DISTRIBUTION Parameterized Mithrandir chart rendered as SVG for templates and exports. Bat Speed Acuña, Luisangel · aggregate bat speed marker 60 mph 85 mph Avg bat speed 72.2 mph Hard swing rate 28% Whiff / swing 20% 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 Acuña, Luisangel · 2026 arsenal snapshot Eephus: 85.7%Slider: 7.1%Curveball: 3.6%Other: 3.6% EP86% · 40 mphprimary pitch EP 86%SL 7%CU 4%FA 4% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Acuña, Luisangel · 2026 arsenal snapshot 6″12″18″24″ Eephus: 86% usage, 0″ horizontal break, 14″ drop, 39.7 mphEP40 mphSlider: 7% usage, 0″ horizontal break, 16″ drop, 36.5 mphSL37 mphCurveball: 4% usage, 0″ horizontal break, 16″ drop, 36.9 mphCU37 mphOther: 4% usage, 1″ horizontal break, 4″ drop, 65.2 mphFA65 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 66.7% 2 93 limited sample
CB 33.3% 1 67 limited sample
Method note

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

Reference layer

Current snapshot

Age24
Height5' 7"
Weight181 lb
Debut2024-09-14
Live layer

Delta / regression

xwOBA Δ-0.028
wOBA Δ-0.024

negative regression

Regression watch

Running hot. Expect some cooling.

-0.2σ gap
wOBA (actual)0.273
xwOBA (deserved)0.268

Acuña’s wOBA sits at 0.273, but the quality of contact underneath says it should be 0.268 — a gap of 0.005, -0.2 standard deviations from the MLB norm over 241 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
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

Hitter Projections 20260.296 xwOBA | 7 HRProjection
2026-05-20 @ SEA0 HR | 0 RBI / 4 Ch | 0 E1-3 | 2 K, R
2026-04-17 @ ATH0 HR | 1 RBI / 4 Ch | 0 E2-4 | 2B, BB, 2 K
2026-04-15 vs TB0 HR | 0 RBI / 4 Ch | 0 E0-3 | BB
2026-04-14 vs TB0 HR | 0 RBI / 2 Ch | 0 E0-4 | K
2026-04-12 @ KC0 HR | 0 RBI / 7 Ch | 0 E0-4 | K