MLB Daily DeltaWeek 27 · September 27, 2026
Engraved portrait of Lucas Erceg
week 27
this weekHOLD
last weekBUY-LOW

Lucas Erceg

KC·P
data as of September 27, 2026·week 27
flipped from BUY-LOW on September 27, 2026
Hold · leans sell but luck-free xERA 4.79 is +0.69 vs league, the level it regresses to is below average, not a buy; strikeout rate 15% is stable and well below league, limits the ceiling — BABIP-against 0.333 elevated and unstable, the 5.70 ERA overstates the damage; a hold that leans sell — skill sits a hair below league, nothing to chase.med 0.60
ROSK 0ERA 4.41WHIP 1.62W 0–0SV 0–0

Erceg is a hold — the ERA panic is noise, the skill is just short.

His BABIP-against is .333, 38 points above the league average of .295 — that gap is the reason his ERA sits at 5.70. BABIP-against needs around 800 balls in play to be reliable, and he has 153, so the 5.70 overstates how badly he has actually pitched. The problem is what the line regresses to: his expected ERA is 4.79, .69 above the league average of 4.10, and his expected wOBA allowed of .334 is above the .315 league mark. He strikes out 14.7% of batters against a 22% league average, well down from his 24.2% career baseline, and that strikeout rate is stable at this sample. His contact allowed is fine — 36.6% hard-hit and 4.6% barrels, both better than league. So the panic is misplaced, but so is a buy. Hold. A 4.41 ERA / 1.62 WHIP projects a drop-tier arm — deep-league streamer only, not a stash.

VS His Norm

  • Strikeout %14.7%—−9.5% ▼vs his ~24.2% career norm
  • Walk %14.3%—+4.5% ▲vs his ~9.8% career norm

Drivers

  • babip_againstNOISEBABIP-against 0.333 elevated and unstable — the 5.70 ERA overstates the damage
  • xeraSIGNALbut luck-free xERA 4.79 is +0.69 vs league — the level it regresses to is below average, not a buy
  • p_k_pctSIGNALstrikeout rate 15% is stable and well below league — limits the ceiling
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed36.6%
36.6%*
lg avg 40.0% ▼−3.4%vs his norm —
153 / 50 BBE
Barrel % Allowed4.6%
believable since May 254.6%*
lg avg 8.0% ▼−3.4%vs his norm —
153 / 60 BBE
xwOBA Allowed.334
.334*
lg avg .315 ▲+.019vs his norm —
224 / 200 TBF
xERA4.79
4.79*
lg avg 4.10 ▲+0.69vs his norm —
224 / 200 TBF
ERA5.70
5.70*
lg avg 4.10 ▲+1.60vs his norm —ERA is above the ~4.10 league average — expect it to fall.
47.3 / 200 IP
Strikeout %14.7%
norm14.7%*
lg avg 22.0% ▼−7.3%vs his norm −9.5% ▼
224 / 70 TBF
Walk %14.3%
norm14.3%*
lg avg 8.0% ▲+6.3%vs his norm +4.5% ▲
224 / 170 TBF
BABIP Against.333
.333*
lg avg .295 ▲+.038vs his norm —BABIP Against is above the ~.295 league average — expect it to fall.
153 / 800 BIP
Swinging-Strike %9.8%
9.8%*
lg avg 11.0% ▼−1.1%vs his norm —
224 / 60 TBF
Chase %28.0%
28.0%*
lg avg 28.5% ▼−0.5%vs his norm —
224 / 60 TBF
Fastball Velo97.2 mph
97.2 mph*
lg avg 94.0 mph ▲+3.2 mphvs his norm —
884 / 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% 14.7%→19.2%signal0 K — K% 14.7% (signal) lifted to career ~24.2% → projected 19.2% over ~0 remaining IP.
xERA 4.79signal4.41 ERA — xERA 4.79 (signal) blended 65% skill / 35% league 3.70 at 21 IP.
BB% 14.3% + contactsignal1.62 WHIP — a 14% walk rate plus BABIP-against 0.302 gives a 1.82 skill WHIP, blended 6…
run support + role0-0 W — wins ride run support and how deep he goes, not just skill.
role (closer)0-0 SV — role: closer.
rosterdrop11 SV, 4.41 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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