MLB Daily DeltaWeek 25 · September 10, 2026
Engraved portrait of Peter Lambert
week 25
this weekBUY
last weekHOLD

Peter Lambert

HOU·P
data as of September 10, 2026·week 25
flipped from HOLD on September 10, 2026
Buy stable xERA 3.65, 0.45 below league, production is earned; add now.med 0.73
ROSK 11ERA 3.65WHIP 1.32W 1–2SV 0

Lambert is a buy — his skill is earned, not lucky.

His expected ERA is 3.65, which is 0.45 below the league average of 4.10, and he has faced enough batters for that number to be reliable. The skill is not propped up by luck. His expected wOBA allowed is .296, below the league average of .315, and his hard-hit rate allowed is 35.1% against a league average of 40.0%. Both are past the point where those numbers stabilize, so they are real. His strikeout rate is 23.0%, just above the league average of 22.0%. The one soft spot is his walk rate at 9.4%, above the league average of 8.0%, but that has not damaged the underlying contact suppression. The expected ERA has been stepping down across the sample, which means the skill is moving in the right direction. Buy. 11 K and a 3.65 ERA make him a deep-league asset worth adding now, not a streamer to cycle.

VS His Norm

  • Strikeout %23.0%—+5.7% ▲vs his ~17.3% career norm
  • Walk %9.4%—+0.4% ▲vs his ~9.0% career norm

Drivers

  • xeraSIGNALstable xERA 3.65, 0.45 below league — production is earned
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed35.1%
35.1%*
lg avg 40.0% ▼−4.9%vs his norm —
390 / 50 BBE
Barrel % Allowed6.7%
6.7%*
lg avg 8.0% ▼−1.3%vs his norm —
390 / 60 BBE
xwOBA Allowed.296
believable since Jun 6.296*
lg avg .315 ▼−.019vs his norm —
595 / 200 TBF
xERA3.65
3.65*
lg avg 4.10 ▼−0.45vs his norm —
595 / 200 TBF
ERA3.67
3.67*
lg avg 4.10 ▼−0.43vs his norm —ERA is below the ~4.10 league average — expect it to rise.
139.7 / 200 IP
Strikeout %23.0%
norm23.0%*
lg avg 22.0% ▲+1.0%vs his norm +5.7% ▲
595 / 70 TBF
Walk %9.4%
norm9.4%*
lg avg 8.0% ▲+1.4%vs his norm +0.4% ▲
595 / 170 TBF
BABIP Against.273
.273*
lg avg .295 ▼−.022vs his norm —BABIP Against is below the ~.295 league average — expect it to rise.
390 / 800 BIP
Swinging-Strike %12.5%
12.5%*
lg avg 11.0% ▲+1.5%vs his norm —
595 / 60 TBF
Chase %30.9%
30.9%*
lg avg 28.5% ▲+2.4%vs his norm —
595 / 60 TBF
Fastball Velo93.9 mph
93.9 mph*
lg avg 94.0 mph ▼−0.1 mphvs his norm —
2368 / 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% 23.0%→21.6%signal11 K — K% 23.0% (signal) tempered to career ~17.3% → projected 21.6% over ~12 remaining…
xERA 3.65signal3.65 ERA — regresses up toward xERA 3.65 (signal): elite skill, but overperforming even…
BB% 9.4% + contactsignal1.32 WHIP — a 9% walk rate plus BABIP-against 0.284 gives a 1.34 skill WHIP, blended 65…
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.
rosterdeep11 K ROS, 3.65 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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