MLB Daily DeltaWeek 25 · September 10, 2026
Engraved portrait of Zack Wheeler
week 25
this weekBUY
last weekSELL-HIGH

Zack Wheeler

data as of September 10, 2026·week 25
flipped from SELL-HIGH on September 10, 2026
Buy stable xERA 3.03, 1.07 below league, production is earned; velocity stable and above league; add now.high 0.92
ROSK 11ERA 3.03WHIP 1.16W 1–2SV 0

Wheeler is a buy — the strikeout stuff and expected ERA are both real.

His expected ERA is 3.03 — more than a full run better than the league average of 4.10 — and it has been stepping down across the sample. Nothing about that number is being propped up by luck. He strikes out 29.8% of batters against a league rate of 22%, and his swinging-strike rate of 15.4% is well above average, which is what a real strikeout profile looks like. His fastball is averaging 95.2 mph, up across the year, and he is getting chases on 35.7% of pitches outside the zone. Hard-hit rate allowed at 35% and barrel rate at 6.2% are both below league. He has faced 547 batters, past the point where these numbers become reliable. The stuff is carrying the results, and the results are earned. Buy. With 11 K and a 3.03 ERA ROS, he's an asset worth acquiring now — earned skills, no luck propping up the line.

VS His Norm

  • Strikeout %29.8%+4.1%vs his ~25.7% career norm
  • Walk %7.9%+1.0%vs his ~6.9% career norm

Drivers

  • xeraSIGNALstable xERA 3.03, 1.07 below league — production is earned
  • p_fastball_veloSIGNALvelocity stable and above league
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed35.0%
35.0%*
lg avg 40.0% −5.0%vs his norm —
337 / 50 BBE
Barrel % Allowed6.2%
6.2%*
lg avg 8.0% −1.8%vs his norm —
337 / 60 BBE
xwOBA Allowed.271
believable since Jun 10.271*
lg avg .315 −.044vs his norm —
547 / 200 TBF
xERA3.03
3.03*
lg avg 4.10 −1.07vs his norm —
547 / 200 TBF
ERA3.23
3.23*
lg avg 4.10 −0.87vs his norm —ERA is below the ~4.10 league averageexpect it to rise.
136.3 / 200 IP
Strikeout %29.8%
norm29.8%*
lg avg 22.0% +7.8%vs his norm +4.1%
547 / 70 TBF
Walk %7.9%
norm7.9%*
lg avg 8.0% −0.1%vs his norm +1.0%
547 / 170 TBF
BABIP Against.265
.265*
lg avg .295 −.030vs his norm —BABIP Against is below the ~.295 league averageexpect it to rise.
337 / 800 BIP
Swinging-Strike %15.4%
15.4%*
lg avg 11.0% +4.4%vs his norm —
547 / 60 TBF
Chase %35.7%
35.7%*
lg avg 28.5% +7.2%vs his norm —
547 / 60 TBF
Fastball Velo95.2 mph
95.2 mph*
lg avg 94.0 mph +1.2 mphvs his norm —
2250 / 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% 29.8%→28.7%signal11 K — K% 29.8% (signal) tempered to career ~25.7% → projected 28.7% over ~13 remaining…
xERA 3.03signal3.03 ERA — regresses up toward xERA 3.03 (signal): elite skill, but overperforming even…
BB% 7.9% + contactsignal1.16 WHIP — a 8% walk rate plus BABIP-against 0.282 gives a 1.16 skill WHIP.
run support + role1-2 W — wins ride run support and how deep he goes, not just skill.
role (starter)0 SV — role: starter, not in the save mix.
rosterstandard11 K ROS, 3.03 ERA

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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