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

Tyler Wells

BAL·P
data as of July 18, 2026·week 17
flipped from HOLD on July 18, 2026
Sell High BABIP-against 0.272 suppressed and unstable, flattering the ERA; luck-free xERA 3.43 is 0.41 above the ERA, regression coming; sell into the hype before regression.med 0.71
ROSK 21WHIP 1.23ERA 3.68W 0–0SV 0

Wells is a sell-high — ERA is BABIP smoke, xERA warns of regression.

His ERA looks good at 3.02, but the durability of that number is suspect. The stat holding it down is his BABIP-against: .272, 23 points below the league average of .295. BABIP-against needs about 800 balls in play to be reliable; he has 120. Luck matters, and right now it is on his side. His expected ERA is 3.43 — higher than the box-score version, and the gap is where the regression lives. The underlying metrics are solid: he limits barrels (6.7% vs. 8.0%), strikes out 26% of batters, and walks only 5.6%. The stuff is real, but the ERA is flattered by a lucky BABIP that will normalize. Sell high while the market still trusts the surface. 21 K with no wins makes him a deep-league streamer only, not a hold through regression.

VS His Norm

  • Strikeout %26.0%—+3.2% ▲vs his ~22.8% career norm
  • Walk %5.6%—−0.6% ▼vs his ~6.2% career norm

Drivers

  • babip_againstNOISEBABIP-against 0.272 suppressed and unstable — flattering the ERA
  • xeraNOISEluck-free xERA 3.43 is 0.41 above the ERA — regression coming
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed34.2%
34.2%*
lg avg 40.0% ▼−5.8%vs his norm —
120 / 50 BBE
Barrel % Allowed6.7%
6.7%*
lg avg 8.0% ▼−1.3%vs his norm —
120 / 60 BBE
xwOBA Allowed.289
.289*
lg avg .315 ▼−.026vs his norm —xwOBA Allowed is below the ~.315 league average — expect it to rise.
177 / 200 TBF
xERA3.43
3.43*
lg avg 4.10 ▼−0.67vs his norm —xERA is below the ~4.10 league average — expect it to rise.
177 / 200 TBF
ERA3.02
3.02*
lg avg 4.10 ▼−1.08vs his norm —ERA is below the ~4.10 league average — expect it to rise.
44.7 / 200 IP
Strikeout %26.0%
norm26.0%*
lg avg 22.0% ▲+4.0%vs his norm +3.2% ▲
177 / 70 TBF
Walk %5.6%
normbelievable since Jul 105.6%*
lg avg 8.0% ▼−2.4%vs his norm −0.6% ▼
177 / 170 TBF
BABIP Against.272
.272*
lg avg .295 ▼−.023vs his norm —BABIP Against is below the ~.295 league average — expect it to rise.
120 / 800 BIP
Swinging-Strike %15.3%
15.3%*
lg avg 11.0% ▲+4.3%vs his norm —
177 / 60 TBF
Chase %32.7%
32.7%*
lg avg 28.5% ▲+4.2%vs his norm —
177 / 60 TBF
Fastball Velo93.5 mph
93.5 mph*
lg avg 94.0 mph ▼−0.5 mphvs his norm —
682 / 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% 26.0%→24.3%signal21 K — K% 26.0% (signal) tempered to career ~22.8% → projected 24.3% over ~24 remaining…
xERA 3.43noise3.68 ERA — xERA 3.43 (noise) blended 7% skill / 93% league 3.70 at 27 IP.
BB% 5.6% + contactsignal1.23 WHIP — a 6% walk rate plus BABIP-against 0.291 gives a 1.16 skill WHIP, blended 7%…
run support + role0-0 W — wins ride run support and how deep he goes, not just skill.
role (setup)0 SV — role: setup, not in the save mix.
rosterdeep3.68 ERA, 1.23 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.

Tweet
Compare with

Comparisons

head-to-head matchups