MLB Daily DeltaWeek 27 · September 27, 2026
Engraved portrait of José Fermin
week 27
this weekSELL
last weekNO CALL

José Fermin

LAA·P
data as of September 27, 2026·week 27
new call as of September 27, 2026
Sell stable xERA 4.60 +0.50 vs league with no luck excuse; move on.med 0.70
ROSK 0ERA 4.29WHIP 1.33W 0–0SV 0

Fermin is a sell — the xERA is climbing and the luck story is absent.

His expected ERA is 4.60, half a run above the league average of 4.10, and it has been stepping up across the sample. He has faced enough batters for that number to be reliable. The strikeout rate is good — 26.1% of batters, well above league — but the walk rate is 10.5%, above league, and the contact he allows is worse than average: a .328 expected wOBA against, a 42.9% hard-hit rate allowed, and only a league-average barrel rate. The swing-and-miss and chase numbers are strong, yet the quality of contact when he is hit is the problem. There is no suppressed BABIP-against to blame. The ERA is not hiding a better pitcher. Sell. With a 4.29 ERA / 1.33 WHIP ROS line, Fermin is a drop — fringe arms like this are streaming-only waiver fodder.

VS His Norm

  • Walk %10.5%—−5.7% ▼vs his ~16.2% career norm
  • Strikeout %26.1%—+1.1% ▲vs his ~25.0% career norm

Drivers

  • xeraSIGNALstable xERA 4.60 +0.50 vs league with no luck excuse
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed42.9%
believable since Jun 2542.9%*
lg avg 40.0% ▲+2.9%vs his norm —
147 / 50 BBE
Barrel % Allowed7.5%
7.5%*
lg avg 8.0% ▼−0.5%vs his norm —
147 / 60 BBE
xwOBA Allowed.328
.328*
lg avg .315 ▲+.013vs his norm —
238 / 200 TBF
xERA4.60
4.60*
lg avg 4.10 ▲+0.50vs his norm —
238 / 200 TBF
ERA3.86
3.86*
lg avg 4.10 ▼−0.24vs his norm —ERA is below the ~4.10 league average — expect it to rise.
53.7 / 200 IP
Strikeout %26.1%
norm26.1%*
lg avg 22.0% ▲+4.1%vs his norm +1.1% ▲
238 / 70 TBF
Walk %10.5%
norm10.5%*
lg avg 8.0% ▲+2.5%vs his norm −5.7% ▼
238 / 170 TBF
BABIP Against.305
.305*
lg avg .295 ▲+.010vs his norm —BABIP Against is above the ~.295 league average — expect it to fall.
147 / 800 BIP
Swinging-Strike %14.7%
14.7%*
lg avg 11.0% ▲+3.7%vs his norm —
238 / 60 TBF
Chase %32.1%
32.1%*
lg avg 28.5% ▲+3.6%vs his norm —
238 / 60 TBF
Fastball Velo96.6 mph
96.6 mph*
lg avg 94.0 mph ▲+2.6 mphvs his norm —
981 / 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% 26.1%→25.6%signal0 K — K% 26.1% (signal) tempered to career ~25.0% → projected 25.6% over ~0 remaining IP.
xERA 4.60signal4.29 ERA — xERA 4.60 (signal) blended 65% skill / 35% league 3.70 at 15 IP.
BB% 10.5% + contactsignal1.33 WHIP — a 10% walk rate plus BABIP-against 0.297 gives a 1.38 skill WHIP, blended 6…
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.
rosterdrop4.29 ERA, 1.33 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