MLB Daily DeltaWeek 25 · September 11, 2026
Portrait of Jack Perkins
Jack Perkins
ATH · P
Change to
Portrait of José Fermin
José Fermin
LAA · P
Change to
Who's more valuable, rest of season

Jack Perkins.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and saves.

Head-to-head
K
ERA
WHIP
W
SV

Jack Perkins wins 3 categories (K, ERA, SV); José Fermin wins 2 (WHIP, W).

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jack Perkins
95.7
José Fermin
96.7
Swinging-Strike %lg 11.0% · higher = better
Jack Perkins
12.8%
José Fermin
14.9%
Strikeout %lg 22.0% · higher = better
Jack Perkins
25.2%
José Fermin
27.2%
Chase %lg 28.5% · higher = better
Jack Perkins
33.5%
José Fermin
32.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Perkins
37.3%
José Fermin
42.7%
Barrel % Allowedlg 8.0% · lower = better
Jack Perkins
8.8%
José Fermin
8.4%
xwOBA Allowedlg .315 · lower = better
Jack Perkins
.311
José Fermin
.322
stabilized — trust it · small sample yet · dashed = league avg · right = better
05

The tape

Rest-of-season projection · bold = leads
rest-of-season projection current season projection range
Rate · earned-run quality
ERAlower is better
Jack Perkins
3.336.07
lg xERA 4.10
now 5.46
3.94
José Fermin
3.336.07
lg xERA 4.10
now 5.40
4.15
WHIPlower is better
Jack Perkins
1.031.85
now 1.21
1.35
José Fermin
1.031.85
now 1.67
1.32

Volume · rest of season
Strikeoutshigher is better
Jack Perkins
4044.20
now 33
6
José Fermin
4044.20
now 18
5
Winshigher is better
Jack Perkins
.0002.80
now 2
01
José Fermin
.0002.80
now 2
01
Saveshigher is better
Jack Perkins
.0004.40
now 3
01
José Fermin
.0004.40
now 0
0
If you already own them — trade angle
Buy LowJack Perkins — buy low. The dip is a window to acquire.conf 0.90
Hold · leans sellJosé Fermin — hold.conf 0.60
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