Is Marcus Semien a buy or sell for fantasy baseball?

Hold — mixed signals; no compelling reason to add or drop right now.

What is Marcus Semien's rest-of-season outlook?

Roughly league-average with nothing unstable driving it. Hold.

487 PA · week 25

this weekHOLD

last weekHOLD

Marcus Semien

NYM·2B

data as of September 10, 2026·week 25

Hold · leans sell skill near league average (0.304); a hold that leans sell — skill sits a hair below league, nothing to chase.med 0.60

ROSHR 0AVG .217R 4RBI 4SB 1

Semien is a hold — league-average skill, nothing unstable behind it.

His expected wOBA is .304, .011 below the league average of .315, and he has 487 plate appearances — well past the point where that number becomes reliable. His actual wOBA is .280, so the surface is running cold, but his BABIP is not the driving story in this call. His strikeout rate (20.3%) and walk rate (8.0%) are both right at league average, and his chase rate (27.8%) sits just below. The one wrinkle is that his expected wOBA has been stepping down across the sample, and his contact quality backs that up: 86.5 mph exit velocity, 33.4% hard-hit, and 6.1% barrels are all under league. There is no luck gap to buy and no inflated stat to sell. Nothing here is moving hard enough to act on. Hold. 0 HR / 4 R / 4 RBI / 1 SB / .217 AVG rest-of-season is a drag — deep-league streamer only, not a must-add.

VS His Norm

Barrel %6.1%—−0.5% ▼vs his ~6.6% career norm

Drivers

xwobaSIGNALskill near league average (0.304)

metric · nowrolling trajectoryvs. leaguestabilized?

Avg Exit Velo86.5 mph

lg avg 89.0 mph ▼−2.5 mphvs his norm —

347 / 50 BBE

Hard-Hit %33.4%

lg avg 40.0% ▼−6.6%vs his norm —

347 / 50 BBE

Barrel %6.1%

lg avg 8.0% ▼−1.9%vs his norm −0.5% ▼

347 / 60 BBE

xwOBA.304

lg avg .315 ▼−.011vs his norm —

487 / 160 PA

wOBA.280

lg avg .315 ▼−.035vs his norm —

487 / 200 PA

Strikeout %20.3%

lg avg 22.0% ▼−1.7%vs his norm —

487 / 60 PA

Walk %8.0%

lg avg 8.5% ▼−0.5%vs his norm —

487 / 120 PA

BABIP.247

lg avg .295 ▼−.048vs his norm −.019 ▼BABIP is below his ~.266 norm — expect it to rise.

347 / 800 BIP

Swinging-Strike %11.9%

lg avg 11.0% ▲+0.9%vs his norm —

487 / 50 PA

Chase %27.8%

lg avg 28.5% ▼−0.7%vs his norm —

487 / 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% 6.1%→6.3%signal0 HR — Barrel% 6.1% (signal) lifted to career ~6.6% → projected 6.3%.

BABIP 0.247→0.266 regressednoise.217 AVG — BABIP 0.247 is noise, regressed toward xBA-implied 0.281 (xBA 0.245) → 0.266.

on-base + lineup4 R — his run rate over ~42 projected PA.

slugging + lineup4 RBI — his RBI rate over ~42 projected PA.

run rate / role1 SB — his steal rate (5 in 60 G) over ~42 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.

VS His Norm

Drivers

5×5 ROS Outlook

Comparisons