Ronald Acuña Jr.
RFAtlanta Braves · NL · Age 28 · Bats R / Throws R · 236 PA
Most likely driver: results lag the process — batted-ball luck, not skill (37% confidence).
Edge breakdown
Long, fast swing — big damage on contact with real whiff exposure deep in counts.
The swing
Percentiles vs all tracked hitters. Attack angle/direction and tilt are swing-weighted averages across batting sides. Swing type from editable rules — first match wins.
vs pitch types
| Pitch | PA | wOBA | xwOBA | lg xwOBA | Whiff% | K% | RV/100 |
|---|---|---|---|---|---|---|---|
| 4-Seam Fastball | 73 | .245 | .288 | .327 | 35.9lg 22.0 | 32.9 | -1.4 |
| Sinker | 53 | .488 | .528 | .351 | 14.1lg 13.7 | 1.9 | 3.6 |
| Slider | 24 | .400 | .318 | .288 | 29.4lg 33.5 | 16.7 | 0.5 |
| Changeup | 25 | .336 | .332 | .278 | 32.6lg 31.5 | 28.0 | 0.6 |
| Cutter | 20 | .353 | .377 | .351 | 32.4lg 22.5 | 20.0 | 0.0 |
| Sweeper | 16 | .200 | .309 | .263 | 33.3lg 31.0 | 18.8 | -0.1 |
| Curveball | 13 | .515 | .470 | .281 | 26.3lg 30.8 | 46.2 | 3.3 |
xwOBA green/red when 20+ points above/below league vs that pitch. RV/100 = run value per 100 pitches seen (positive favors the hitter). Source: Savant pitch arsenal stats.
Timing spectrum
share of competitive swings by timing
on-time 68.5% (+0.0% vs prior) · late 20.1% (+0.0% vs prior)
Barrel accuracy
avg miss from the sweet spot · dashed ring = league
4 pctl (lower is better) · +0.0" vs prior
What this can't see: Joint kinetics, hip-shoulder separation, and kinematic sequencing (Hawkeye/KinaTrax, team-internal — never estimated here). Stance angle and foot separation (Savant visuals only, no export). Release extension (column exported empty; needs pitch-level ingest).