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?

xwOBA .292 sits 23 points under league — thin contact

330 PA · week 31

this weekSELL

last weekNO CALL

Joe Mack

MIA·C

data as of October 26, 2026·week 31

new call as of October 26, 2026

Sell stable xwOBA 0.292 below league with no luck excuse; move on.med 0.60

ROSHR 0AVG .000R 0RBI 0SB 0

Mack is a sell — his bat sits below league with nothing to blame.

His expected wOBA is .292, which is .023 below the league average of .315, and 330 plate appearances is well past the point where that number becomes reliable. His trajectory is the bigger problem: his expected wOBA has been stepping down across the sample, so the trend is not moving toward average. His actual wOBA of .299 tracks close to it, so no bad-luck story is propping up the line. He strikes out 24.8% of the time against a 22% league rate, and his 5.8% walk rate is nearly three points below league. Add sub-league exit velocity and hard-hit rate, and you get a hitter with no on-base floor and below-average contact. This is the level he is at. Sell. The ROS 0 HR / 0 R / 0 RBI / 0 SB / .000 AVG confirms it: a waiver-wire drop, not a stash.

Drivers

xwobaSIGNALstable xwOBA 0.292 below league with no luck excuse

metric · nowrolling trajectoryvs. leaguestabilized?

Avg Exit Velo88.8 mph

lg avg 89.0 mph ▼−0.2 mphvs his norm —

227 / 50 BBE

Hard-Hit %38.3%

lg avg 40.0% ▼−1.7%vs his norm —

227 / 50 BBE

Barrel %8.4%

lg avg 8.0% ▲+0.4%vs his norm —

227 / 60 BBE

xwOBA.292

lg avg .315 ▼−.023vs his norm —

330 / 160 PA

wOBA.299

lg avg .315 ▼−.016vs his norm —

330 / 200 PA

Strikeout %24.8%

lg avg 22.0% ▲+2.8%vs his norm —

330 / 60 PA

Walk %5.8%

lg avg 8.5% ▼−2.7%vs his norm —

330 / 120 PA

BABIP.273

lg avg .295 ▼−.022vs his norm —BABIP is below the ~.295 league average — expect it to rise.

227 / 800 BIP

Swinging-Strike %12.2%

lg avg 11.0% ▲+1.2%vs his norm —

330 / 50 PA

Chase %28.1%

lg avg 28.5% ▼−0.4%vs his norm —

330 / 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% 8.4%→8.3%signal0 HR — Barrel% 8.4% (signal) tempered to league ~8.0% → projected 8.3%.

BABIP 0.273→0.310 regressednoise.000 AVG — BABIP 0.273 is noise, regressed toward xBA-implied 0.324 (xBA 0.225) → 0.310.

on-base + lineup0 R — his run rate over ~0 projected PA.

slugging + lineup0 RBI — his RBI rate over ~0 projected PA.

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