MLB Daily DeltaWeek 17 · July 18, 2026
Engraved portrait of Sean Newcomb
week 17
this weekSELL-HIGH
last weekHOLD

Sean Newcomb

data as of July 18, 2026·week 17
flipped from HOLD on July 18, 2026
Sell High luck-free xERA 3.66 is 1.14 above the ERA, regression coming — BABIP-against 0.273 suppressed and unstable, flattering the ERA; sell into the hype before regression.high 0.95 (narrative held for review)
ROSK 23ERA 3.66WHIP 1.28W 0–0SV 0–1

Newcomb is a sell-high — ERA is luck, not skill.

Surface ERA flattered by an unsustainably low BABIP-against; xERA says regression. Sell high.

VS His Norm

  • Walk %8.3%−3.0%vs his ~11.3% career norm
  • Strikeout %24.1%+1.1%vs his ~23.0% career norm

Drivers

  • babip_againstNOISEBABIP-against 0.273 suppressed and unstable — flattering the ERA
  • xeraSIGNALluck-free xERA 3.66 is 1.14 above the ERA — regression coming
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed34.8%
34.8%*
lg avg 40.0% −5.2%vs his norm —
141 / 50 BBE
Barrel % Allowed4.3%
4.3%*
lg avg 8.0% −3.7%vs his norm —
141 / 60 BBE
xwOBA Allowed.298
believable since Jul 3.298*
lg avg .315 −.017vs his norm —
216 / 200 TBF
xERA3.66
3.66*
lg avg 4.10 −0.44vs his norm —
216 / 200 TBF
ERA2.52
2.52*
lg avg 4.10 −1.58vs his norm —ERA is below the ~4.10 league averageexpect it to rise.
53.7 / 200 IP
Strikeout %24.1%
norm24.1%*
lg avg 22.0% +2.1%vs his norm +1.1%
216 / 70 TBF
Walk %8.3%
norm8.3%*
lg avg 8.0% +0.3%vs his norm −3.0%
216 / 170 TBF
BABIP Against.273
.273*
lg avg .295 −.022vs his norm —BABIP Against is below the ~.295 league averageexpect it to rise.
141 / 800 BIP
Swinging-Strike %11.1%
11.1%*
lg avg 11.0% +0.1%vs his norm —
216 / 60 TBF
Chase %27.1%
27.1%*
lg avg 28.5% −1.4%vs his norm —
216 / 60 TBF
Fastball Velo94.7 mph
94.7 mph*
lg avg 94.0 mph +0.7 mphvs his norm —
837 / 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% 24.1%→23.6%signal23 K — K% 24.1% (signal) tempered to career ~23.0% → projected 23.6% over ~26 remaining…
xERA 3.66signal3.66 ERA — regresses up toward xERA 3.66 (signal): elite skill, but overperforming even…
BB% 8.3% + contactsignal1.28 WHIP — a 8% walk rate plus BABIP-against 0.291 gives a 1.30 skill WHIP, blended 65…
run support + role0-0 W — wins ride run support and how deep he goes, not just skill.
role (setup)0-1 SV — role: setup, in the save mix only situationally.
rosterdeep3.66 ERA, 1.28 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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