Mithrandir Metrics
Player Atlanta Braves Refreshed Jun 1 06:00 AM ET
Player profile / Atlanta Braves

Ronald Acuña

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

Cards
1
Modules
1
Live Δ
yes
Club Atlanta Braves Position RF 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
xwOBA preseason0.381
xwOBA current pace0.400
xwOBA rolling p500.391
Observed weight50%
xwOBA
0.361 0.375 0.391 0.406 0.421
wOBA
0.344 0.364 0.387 0.409 0.429
ISO
0.158 0.176 0.197 0.217 0.236
K%
17.7% 19.1% 20.7% 22.3% 23.7%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Hitting · percentile strip
BB%16.2%
97 +16 vs proj
Barrel%8.8%
87
Bat speed73.3
91
Exit velocity90.4
77
Hard-hit%46.2%
77
K%21.3%
54
xBA0.359
80
xSLG0.716
93
xwOBA0.400
97
Defense · percentile strip
Arm Runs-0.1 · RF
49
Arm Strength97.3 · RF
86
Outs Above Avg-2.0 · RF
8
Range Runs-1.2 · RF
33
Baserunning · percentile strip
Base Running Runs1.2 · RF
84
Bolts1.0 · RF
17
SB Success Rate90.0% · RF
82
Sprint Speed27.1 · RF
45
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
Avoids Bad ChasesST 70.3% · rebadged research
74
Avoids Bad TakesHPT 20.0% · rebadged research
89
Correct Decisions70.7% · rebadged research
88
Resists Breaking - horizontalwOBA 0.291 · borderline
34
Resists Breaking - verticalwOBA 0.296 · insufficient sample
11
Resists ChangeupwOBA 0.298 · validated thin sample
8
Resists Cutters + splitterswOBA 0.341 · insufficient sample
26
Resists FastballwOBA 0.306 · validated
96
Resists SinkerwOBA 0.368 · validated
25
SEAGER+ Plate Discipline109
88
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 Jr.., Ronald · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 2026-05-17: 0.3802026-05-19: 0.3802026-05-21: 0.3832026-05-23: 0.3742026-05-24: 0.3662026-05-25: 0.3702026-05-26: 0.3702026-05-28: 0.3662026-05-29: 0.3652026-05-30: 0.3742026-05-31: 0.3812026-06-01: 0.400 2026-05-17 2026-06-01 xwOBA MITHRANDIR · CHARTS
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 Jr.., Ronald · Aggregate zone metrics; not pitch-by-pitch locations Zone: 43%43%Chase: 25%25%Whiff: 26%26%Zone contact: 80%80%Contact: 74%74%Hard hit: 46%46% 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.

2026
Mithrandir Metrics SWING PATH Parameterized Mithrandir chart rendered as SVG for templates and exports. Swing Path Acuña Jr.., Ronald · aggregate bat-tracking arc Swing tilt 38.5° Length 7.5 ft Ideal path 60% MITHRANDIR · CHARTS
Mithrandir Metrics ATTACK ANGLE Parameterized Mithrandir chart rendered as SVG for templates and exports. Attack Angle Acuña Jr.., Ronald · aggregate attack vector Attack angle 10.0° Direction +6.5° MITHRANDIR · CHARTS
Mithrandir Metrics BAT SPEED DISTRIBUTION Parameterized Mithrandir chart rendered as SVG for templates and exports. Bat Speed Acuña Jr.., Ronald · aggregate bat speed marker 60 mph 85 mph Avg bat speed 75.5 mph Hard swing rate 58% Whiff / swing 24% MITHRANDIR · CHARTS
Reference layer

Current snapshot

Age28
Height6' 0"
Weight205 lb
Debut2018-04-25
Live layer

Delta / regression

xwOBA Δ+0.019
wOBA Δ+0.005

positive regression

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Hitting12026-04-08Impact contact carried uneven swing decisions
Projection links / recent games

Available detail

Hitter Projections 20260.381 xwOBA | 19 HRProjection
2026-05-20 @ MIA0 HR | 0 RBI / 0 Ch | 0 E1-4 | K, R
2026-04-20 @ WSH0 HR | 0 RBI / 0 Ch | 0 E0-1 | 2 HBP, K, R
2026-04-17 @ PHI0 HR | 0 RBI / 5 Ch | 0 E1-4 | BB, 2 R
2026-04-15 vs MIA0 HR | 0 RBI / 1 Ch | 0 E2-4 | 2B, 2 K, R
2026-04-14 vs MIA0 HR | 0 RBI / 2 Ch | 0 E0-3 | BB, SB