MLB Daily DeltaWeek 25 · September 10, 2026
Engraved portrait of Jake Mangum
432 PA · week 25
this weekSELL
last weekHOLD

Jake Mangum

data as of September 10, 2026·week 25
flipped from HOLD on September 10, 2026
Sell stable xwOBA 0.284 below league with no luck excuse; move on.med 0.61 (narrative held for review)
ROSHR 0AVG .253R 5RBI 3SB 2

Mangum is a sell — the contact is below league and the line is luck.

Stable skill below league and not unlucky. Sell.

VS His Norm

  • Barrel %1.9%−0.7%vs his ~2.6% career norm

Drivers

  • xwobaSIGNALstable xwOBA 0.284 below league with no luck excuse
metric · nowrolling trajectoryvs. leaguestabilized?
Avg Exit Velo85.4 mph
85.4 mph*
lg avg 89.0 mph −3.6 mphvs his norm —
313 / 50 BBE
Hard-Hit %26.5%
26.5%*
lg avg 40.0% −13.5%vs his norm —
313 / 50 BBE
Barrel %1.9%
norm1.9%*
lg avg 8.0% −6.1%vs his norm −0.7%
313 / 60 BBE
xwOBA.284
believable since Jun 18.284*
lg avg .315 −.031vs his norm —
432 / 160 PA
wOBA.320
.320*
lg avg .315 +.005vs his norm —
432 / 200 PA
Strikeout %19.4%
19.4%*
lg avg 22.0% −2.6%vs his norm —
432 / 60 PA
Walk %5.3%
5.3%*
lg avg 8.5% −3.2%vs his norm —
432 / 120 PA
BABIP.354
norm.354*
lg avg .295 +.059vs his norm +.009 BABIP is above his ~.345 normexpect it to fall.
313 / 800 BIP
Swinging-Strike %12.2%
12.2%*
lg avg 11.0% +1.2%vs his norm —
432 / 50 PA
Chase %45.6%
45.6%*
lg avg 28.5% +17.1%vs his norm —
432 / 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% 1.9%→2.2%signal0 HR — Barrel% 1.9% (signal) lifted to career ~2.6% → projected 2.2%.
BABIP 0.354→0.317 regressednoise.253 AVG — BABIP 0.354 is noise, regressed toward xBA-implied 0.294 (xBA 0.246) → 0.317.
on-base + lineup5 R — his run rate over ~35 projected PA.
slugging + lineup3 RBI — his RBI rate over ~35 projected PA.
run rate / role2 SB — his steal rate (8 in 41 G) over ~35 projected PA.
rosterdroprotational 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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