MLB Daily DeltaWeek 18 · July 23, 2026
week 18
this weekSELL-HIGH
last week—

Mason Barnett

ATH·P
data as of July 23, 2026·week 18
Sell High BABIP-against 0.231 suppressed and unstable, flattering the ERA; luck-free xERA 5.18 is 0.54 above the ERA, regression coming; sell into the hype before regression.high 0.77
ROSK 10ERA 3.70WHIP 1.24W 0–0SV 0

Barnett is a sell-high — ERA flattered by BABIP luck.

Limited data: this call rests on what noise we can already see. His ERA is 4.64 but his expected ERA is 5.18 — a gap in the wrong direction. The reason is BABIP-against: .231, 64 points below league average. BABIP-against needs around 800 balls in play to be reliable, and he has 57. That gap is luck, not skill. Meanwhile, his hard-hit rate allowed is 43.9%, above league average, and stable at 57 batted-ball events. His strikeout rate is near league average, his swing-and-miss and chase rates are slightly below, and his fastball velocity is solid but not elite. There is no shortage of luck story here. The xERA is the truth and it says regression. Sell high. 10 K / 3.70 ERA / 1.24 WHIP line is a deep-league sell window before regression bites.

VS His Norm

  • Strikeout %23.3%—+2.8% ▲vs his ~20.5% career norm

Drivers

  • babip_againstNOISEBABIP-against 0.231 suppressed and unstable — flattering the ERA
  • xeraNOISEluck-free xERA 5.18 is 0.54 above the ERA — regression coming
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed43.9%
43.9%*
lg avg 40.0% ▲+3.9%vs his norm —
57 / 50 BBE
Barrel % Allowed10.5%
10.5%*
lg avg 8.0% ▲+2.5%vs his norm —Barrel % Allowed is above the ~8.0% league average — expect it to fall.
57 / 60 BBE
xwOBA Allowed.347
.347*
lg avg .315 ▲+.032vs his norm —xwOBA Allowed is above the ~.315 league average — expect it to fall.
90 / 200 TBF
xERA5.18
5.18*
lg avg 4.10 ▲+1.08vs his norm —xERA is above the ~4.10 league average — expect it to fall.
90 / 200 TBF
ERA4.64
4.64*
lg avg 4.10 ▲+0.54vs his norm —ERA is above the ~4.10 league average — expect it to fall.
21.3 / 200 IP
Strikeout %23.3%
norm23.3%*
lg avg 22.0% ▲+1.3%vs his norm +2.8% ▲
90 / 70 TBF
Walk %13.3%
norm13.3%*
lg avg 8.0% ▲+5.3%vs his norm +1.5% ▲Walk % is above his ~11.8% norm — expect it to fall.
90 / 170 TBF
BABIP Against.231
.231*
lg avg .295 ▼−.064vs his norm —BABIP Against is below the ~.295 league average — expect it to rise.
57 / 800 BIP
Swinging-Strike %9.1%
9.1%*
lg avg 11.0% ▼−1.9%vs his norm —
90 / 60 TBF
Chase %27.0%
27.0%*
lg avg 28.5% ▼−1.5%vs his norm —
90 / 60 TBF
Fastball Velo94.9 mph
94.9 mph*
lg avg 94.0 mph ▲+0.9 mphvs his norm —
384 / 50 PITCHES

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
K% 23.3%→21.3%signal10 K — K% 23.3% (signal) tempered to career ~20.5% → projected 21.3% over ~22 remaining…
xERA 5.18noise3.70 ERA — xERA 5.18 (noise) blended 0% skill / 100% league 3.70 at 2 IP.
BB% 13.3% + contactnoise1.24 WHIP — a 13% walk rate plus BABIP-against 0.290 gives a 1.53 skill WHIP, blended 0…
run support + role0-0 W — wins ride run support and how deep he goes, not just skill.
role (middle)0 SV — role: middle, not in the save mix.
rosterdeep3.70 ERA, 1.24 WHIP

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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