MLB Daily DeltaWeek 18 · July 28, 2026
week 18
this weekHOLD
last weekBUY-LOW

Jimmy Herget

COL·P
data as of July 28, 2026·week 18
flipped from BUY-LOW on July 28, 2026
Hold · wait & see BABIP-against 0.367 elevated and unstable, the 6.43 ERA overstates the damage; but luck-free xERA 4.60 is +0.50 vs league, the level it regresses to is below average, not a buy; hold and wait — key skill metric not yet stable enough to call.med 0.55
ROSK 18ERA 3.70WHIP 1.24W 0–0SV 0–2

Herget is a hold — not as bad as the ERA, but not a buy either.

His ERA is 6.43, but it is worse than the skill underneath. His BABIP-against is .367, 72 points above league average, and BABIP-against needs around 800 balls in play to be reliable. He has 86. That gap is luck, not a sign of failure. Strip that noise away and his expected ERA is 4.60, which is still half a run above the league average of 4.10. That number is also noisy at 131 batters faced, but it is the best estimate we have. His strikeout rate and swinging-strike rate are near league average, his barrel rate allowed is elevated at 11.6%, and his fastball velocity sits at 91.9 mph — two ticks below average. The panic over the ERA is overblown, but the underlying skill is below average. Limited data: this call rests on the first stable sample of the season. Fade the panic, do not buy. Hold. 18 K and a 3.70 ERA with no wins — he's a deep-league hold until the BABIP regresses.

VS His Norm

  • Strikeout %22.1%—−0.6% ▼vs his ~22.7% career norm

Drivers

  • babip_againstNOISEBABIP-against 0.367 elevated and unstable — the 6.43 ERA overstates the damage
  • xeraNOISEbut luck-free xERA 4.60 is +0.50 vs league — the level it regresses to is below average, not a buy
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed39.5%
39.5%*
lg avg 40.0% ▼−0.5%vs his norm —
86 / 50 BBE
Barrel % Allowed11.6%
11.6%*
lg avg 8.0% ▲+3.6%vs his norm —
86 / 60 BBE
xwOBA Allowed.330
.330*
lg avg .315 ▲+.015vs his norm —xwOBA Allowed is above the ~.315 league average — expect it to fall.
131 / 200 TBF
xERA4.60
4.60*
lg avg 4.10 ▲+0.50vs his norm —xERA is above the ~4.10 league average — expect it to fall.
131 / 200 TBF
ERA6.43
6.43*
lg avg 4.10 ▲+2.33vs his norm —ERA is above the ~4.10 league average — expect it to fall.
28 / 200 IP
Strikeout %22.1%
norm22.1%*
lg avg 22.0% ▲+0.1%vs his norm −0.6% ▼
131 / 70 TBF
Walk %10.7%
norm10.7%*
lg avg 8.0% ▲+2.7%vs his norm +3.4% ▲Walk % is above his ~7.3% norm — expect it to fall.
131 / 170 TBF
BABIP Against.367
.367*
lg avg .295 ▲+.072vs his norm —BABIP Against is above the ~.295 league average — expect it to fall.
86 / 800 BIP
Swinging-Strike %13.0%
13.0%*
lg avg 11.0% ▲+2.0%vs his norm —
131 / 60 TBF
Chase %30.1%
30.1%*
lg avg 28.5% ▲+1.6%vs his norm —
131 / 60 TBF
Fastball Velo91.9 mph
91.9 mph*
lg avg 94.0 mph ▼−2.1 mphvs his norm —
521 / 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% 22.1%→22.5%signal18 K — K% 22.1% (signal) lifted to career ~22.7% → projected 22.5% over ~17 remaining IP.
xERA 4.60noise3.70 ERA — xERA 4.60 (noise) blended 0% skill / 100% league 3.70 at 16 IP.
BB% 10.7% + contactnoise1.24 WHIP — a 11% walk rate plus BABIP-against 0.303 gives a 1.49 skill WHIP, blended 0…
run support + role0-0 W — wins ride run support and how deep he goes, not just skill.
role (setup)0-2 SV — role: setup, in the save mix only situationally.
rosterdeep3.70 ERA, 1.24 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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