Is Joe Mack a buy or sell for fantasy baseball?

Sell — metrics are consistently below average with signal behind the decline.

What is Joe Mack's rest-of-season outlook?

Strikeouts 25.7% with soft 88.4 mph contact and no luck.

292 PA · week 25

this weekSELL

last weekNO CALL

Joe Mack

MIA·C

data as of September 10, 2026·week 25

new call as of September 10, 2026

Sell stable xwOBA 0.290 below league with no luck excuse; move on.med 0.60

ROSHR 1AVG .220R 3RBI 3SB 0

Mack is a sell — his bat is below league and not unlucky.

His expected wOBA is .290, .025 below the league average of .315, and he has 292 plate appearances — nearly double the 160 it takes for that number to become reliable. His actual wOBA is .298, tracking right with it, so there is no bad-luck story dragging the line down. His batted-ball numbers say the same thing: an 88.4 mph average exit velocity and a 38.4% hard-hit rate, both a hair under league. He strikes out 25.7% of the time and walks only 5.8%, so he gives away more than he takes. His expected wOBA has been stepping down across the sample, not settling — the bat is not coming around. Sell. With 1 HR / 3 R / 3 RBI / .220 AVG ROS, this is a drop — waiver-wire fodder, streaming-only at catcher.

Drivers

xwobaSIGNALstable xwOBA 0.290 below league with no luck excuse

metric · nowrolling trajectoryvs. leaguestabilized?

Avg Exit Velo88.4 mph

lg avg 89.0 mph ▼−0.6 mphvs his norm —

198 / 50 BBE

Hard-Hit %38.4%

lg avg 40.0% ▼−1.6%vs his norm —

198 / 50 BBE

Barrel %8.1%

lg avg 8.0% ▲+0.1%vs his norm —

198 / 60 BBE

xwOBA.290

lg avg .315 ▼−.025vs his norm —

292 / 160 PA

wOBA.298

lg avg .315 ▼−.017vs his norm —

292 / 200 PA

Strikeout %25.7%

lg avg 22.0% ▲+3.7%vs his norm —

292 / 60 PA

Walk %5.8%

lg avg 8.5% ▼−2.7%vs his norm —

292 / 120 PA

BABIP.275

lg avg .295 ▼−.020vs his norm —BABIP is below the ~.295 league average — expect it to rise.

198 / 800 BIP

Swinging-Strike %12.2%

lg avg 11.0% ▲+1.2%vs his norm —

292 / 50 PA

Chase %28.0%

lg avg 28.5% ▼−0.5%vs his norm —

292 / 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% 8.1%→8.1%signal1 HR — Barrel% 8.1% (signal) tempered to league ~8.0% → projected 8.1%.

BABIP 0.275→0.311 regressednoise.220 AVG — BABIP 0.275 is noise, regressed toward xBA-implied 0.323 (xBA 0.224) → 0.311.

on-base + lineup3 R — his run rate over ~34 projected PA.

slugging + lineup3 RBI — his RBI rate over ~34 projected PA.

run rate / role0 SB — his steal rate (0 in 22 G) over ~34 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.

Drivers

5×5 ROS Outlook

Comparisons