MLB Daily DeltaWeek 25 · September 10, 2026
Engraved portrait of Jonathan Loáisiga
week 25
this weekSELL-HIGH
last weekSELL-HIGH

Jonathan Loáisiga

AZ·P
data as of September 10, 2026·week 25
Sell High luck-free xERA 2.96 is 0.53 above the ERA, regression coming — BABIP-against 0.271 suppressed and unstable, flattering the ERA; sell into the hype before regression.high 0.86 (narrative held for review)
ROSK 3ERA 2.96WHIP 1.23W 0–0SV 0–0

Loáisiga is a sell-high — his ERA is running on luck.

Surface ERA flattered by an unsustainably low BABIP-against; xERA says regression. Sell high.

VS His Norm

  • Walk %4.8%−2.7%vs his ~7.5% career norm
  • Strikeout %19.0%−2.4%vs his ~21.4% career norm

Drivers

  • babip_againstNOISEBABIP-against 0.271 suppressed and unstable — flattering the ERA
  • xeraSIGNALluck-free xERA 2.96 is 0.53 above the ERA — regression coming
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed33.1%
33.1%*
lg avg 40.0% −6.9%vs his norm —
175 / 50 BBE
Barrel % Allowed4.0%
4.0%*
lg avg 8.0% −4.0%vs his norm —
175 / 60 BBE
xwOBA Allowed.268
believable since Aug 20.268*
lg avg .315 −.047vs his norm —
231 / 200 TBF
xERA2.96
2.96*
lg avg 4.10 −1.14vs his norm —
231 / 200 TBF
ERA2.43
2.43*
lg avg 4.10 −1.67vs his norm —ERA is below the ~4.10 league averageexpect it to rise.
59.3 / 200 IP
Strikeout %19.0%
norm19.0%*
lg avg 22.0% −3.0%vs his norm −2.4%
231 / 70 TBF
Walk %4.8%
norm4.8%*
lg avg 8.0% −3.2%vs his norm −2.7%
231 / 170 TBF
BABIP Against.271
.271*
lg avg .295 −.024vs his norm —BABIP Against is below the ~.295 league averageexpect it to rise.
175 / 800 BIP
Swinging-Strike %12.1%
12.1%*
lg avg 11.0% +1.1%vs his norm —
231 / 60 TBF
Chase %36.2%
36.2%*
lg avg 28.5% +7.7%vs his norm —
231 / 60 TBF
Fastball Velo97.5 mph
97.5 mph*
lg avg 94.0 mph +3.5 mphvs his norm —
865 / 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% 19.0%→20.1%signal3 K — K% 19.0% (signal) lifted to career ~21.4% → projected 20.1% over ~5 remaining IP.
xERA 2.96signal2.96 ERA — regresses up toward xERA 2.96 (signal): elite skill, but overperforming even…
BB% 4.8% + contactsignal1.23 WHIP — a 5% walk rate plus BABIP-against 0.290 gives a 1.23 skill WHIP.
run support + role0-0 W — wins ride run support and how deep he goes, not just skill.
role (closer)0-0 SV — role: closer.
rosterstandard1 SV, 2.96 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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