Is Mark Vientos a buy or sell for fantasy baseball?

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

What is Mark Vientos's rest-of-season outlook?

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

266 PA · week 25

this weekHOLD

last weekBUY-LOW

Mark Vientos

NYM·1B

data as of September 10, 2026·week 25

flipped from BUY-LOW on September 10, 2026

Hold · steady skill near league average (0.312); hold steady — skill tracks near league, no edge either way.med 0.60

ROSHR 1AVG .216R 4RBI 5SB 0

Vientos is a hold — league-average skill, nothing unstable here.

His expected wOBA of .312 is right at the league average of .315, and at 266 plate appearances that number is stable — 106 past the point where it becomes reliable. So the skill is roughly league average, and there is no luck mechanic dragging the line either way. The contact is actually a touch above average: 89.8 mph average exit velocity, a 44.7% hard-hit rate, and 10.6% barrels, all ahead of league. The problem is the approach. He walks just 4.5% of the time, below league, and his swinging-strike rate of 17.1% is far above average. That plus the strikeouts is why his actual wOBA sits at .290. And his expected wOBA has been stepping down over the sample, so there is no climb to buy. This is the level. Hold. 1 HR / 4 R / 5 RBI / .216 AVG is a drop-tier drag — a deep-league streamer at best, not a must-add.

VS His Norm

Barrel %10.6%—−1.7% ▼vs his ~12.3% career norm

Drivers

xwobaSIGNALskill near league average (0.312)

metric · nowrolling trajectoryvs. leaguestabilized?

Avg Exit Velo89.8 mph

lg avg 89.0 mph ▲+0.8 mphvs his norm —

188 / 50 BBE

Hard-Hit %44.7%

lg avg 40.0% ▲+4.7%vs his norm —

188 / 50 BBE

Barrel %10.6%

lg avg 8.0% ▲+2.6%vs his norm −1.7% ▼

188 / 60 BBE

xwOBA.312

lg avg .315 ▼−.003vs his norm —

266 / 160 PA

wOBA.290

lg avg .315 ▼−.025vs his norm —

266 / 200 PA

Strikeout %23.7%

lg avg 22.0% ▲+1.7%vs his norm —

266 / 60 PA

Walk %4.5%

lg avg 8.5% ▼−4.0%vs his norm —

266 / 120 PA

BABIP.234

lg avg .295 ▼−.061vs his norm −.058 ▼BABIP is below his ~.292 norm — expect it to rise.

188 / 800 BIP

Swinging-Strike %17.1%

lg avg 11.0% ▲+6.1%vs his norm —

266 / 50 PA

Chase %35.8%

lg avg 28.5% ▲+7.3%vs his norm —

266 / 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% 10.6%→11.5%signal1 HR — Barrel% 10.6% (signal) lifted to career ~12.3% → projected 11.5%.

BABIP 0.234→0.257 regressednoise.216 AVG — BABIP 0.234 is noise, regressed toward xBA-implied 0.264 (xBA 0.236) → 0.257.

on-base + lineup4 R — his run rate over ~40 projected PA.

slugging + lineup5 RBI — his RBI rate over ~40 projected PA.

run rate / role0 SB — his steal rate (0 in 52 G) over ~40 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