MLB Daily DeltaWeek 25 · September 10, 2026
Engraved portrait of Ronald Acuña Jr.
404 PA · week 25
this weekBUY
last weekBUY

Ronald Acuña Jr.

ATL·RF
data as of September 10, 2026·week 25
Buy stable xwOBA 0.364, +0.049 vs league, production is earned; elite, already-stable contact quality; add now.med 0.70
ROSAVG .238HR 1R 6RBI 4SB 2

Acuña is a buy — the contact is climbing and the skill is earned

His hard-hit rate is 45.9%, nearly six points above league average, and it has been stepping up across the sample, which points to a bat that is getting better rather than one holding onto a hot streak. His expected wOBA is .364, .049 above the league average of .315, and 404 plate appearances put that number well past the point where it becomes reliable. His actual wOBA of .346 sits close to the expected mark, so his line is earned, not propped up by batted-ball luck. He pairs the contact with an 11.9% walk rate, 3.4 points above league. The contact quality and the xwOBA are both trending up, and the sample supports both. Buy. Deep-league only: 1 HR / 6 R / 4 RBI / 2 SB at .238 AVG is a rotational asset, not a must-add — stash him where you can.

VS His Norm

  • Barrel %12.4%—−2.1% ▼vs his ~14.5% career norm

Drivers

  • xwobaSIGNALstable xwOBA 0.364, +0.049 vs league — production is earned
  • hard_hit_pctSIGNALelite, already-stable contact quality
metric · nowrolling trajectoryvs. leaguestabilized?
Avg Exit Velo90.5 mph
90.5 mph*
lg avg 89.0 mph ▲+1.5 mphvs his norm —
259 / 50 BBE
Hard-Hit %45.9%
45.9%*
lg avg 40.0% ▲+5.9%vs his norm —
259 / 50 BBE
Barrel %12.4%
norm12.4%*
lg avg 8.0% ▲+4.4%vs his norm −2.1% ▼
259 / 60 BBE
xwOBA.364
.364*
lg avg .315 ▲+.049vs his norm —
404 / 160 PA
wOBA.346
believable since May 30.346*
lg avg .315 ▲+.031vs his norm —
404 / 200 PA
Strikeout %22.8%
22.8%*
lg avg 22.0% ▲+0.8%vs his norm —
404 / 60 PA
Walk %11.9%
11.9%*
lg avg 8.5% ▲+3.4%vs his norm —
404 / 120 PA
BABIP.296
norm.296*
lg avg .295 ▲+.001vs his norm −.045 ▼BABIP is below his ~.341 norm — expect it to rise.
259 / 800 BIP
Swinging-Strike %14.7%
14.7%*
lg avg 11.0% ▲+3.7%vs his norm —
404 / 50 PA
Chase %28.3%
28.3%*
lg avg 28.5% ▼−0.2%vs his norm —
404 / 50 PA

5×5 ROS Outlook

rest of season

Where each category goes the rest of the way, and the skill that drives it. Tap a row to expand the full derivation.

statytdrosdriverconf
Barrel% 12.4%→13.3%signal1 HR — Barrel% 12.4% (signal) lifted to career ~14.5% → projected 13.3%.
BABIP 0.296→0.292 regressednoise.238 AVG — BABIP 0.296 is noise, regressed toward xBA-implied 0.290 (xBA 0.258) → 0.292.
on-base + lineup6 R — his run rate over ~43 projected PA.
slugging + lineup4 RBI — his RBI rate over ~43 projected PA.
run rate / role2 SB — his steal rate (12 in 46 G) over ~43 projected PA.
rosterdeeprotational counting only

Every projection traces to a sabermetric input. The driver and confidence shown per row are always visible; tap any row to expand the full derivation.

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