MLB Daily DeltaWeek 19 · July 31, 2026
Portrait of Jack Perkins
Jack Perkins
ATH · P
Change to
Portrait of Sam Moll
Sam Moll
CIN · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22, 1 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
WHIP
W
SV

Jack Perkins wins 2 (K, SV); Sam Moll wins 2 (ERA, WHIP); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jack Perkins
95.9
Sam Moll
92.4
Swinging-Strike %lg 11.0% · higher = better
Jack Perkins
13.4%
Sam Moll
10.0%
Strikeout %lg 22.0% · higher = better
Jack Perkins
26.1%
Sam Moll
24.0%
Chase %lg 28.5% · higher = better
Jack Perkins
33.7%
Sam Moll
26.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Perkins
37.6%
Sam Moll
31.0%
Barrel % Allowedlg 8.0% · lower = better
Jack Perkins
7.3%
Sam Moll
6.0%
xwOBA Allowedlg .315 · lower = better
Jack Perkins
.311
Sam Moll
.328
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
26.65
lg xERA 4.10
now 5.46
3.93
Sam Moll
26.65
lg xERA 4.10
now 2.49
3.74
WHIPlower is better
Jack Perkins
.9801.38
now 1.21
1.29
Sam Moll
.9801.38
now 1.07
1.25

Volume · rest of season
Strikeoutshigher is better
Jack Perkins
4039
now 33
24
Sam Moll
4039
now 26
18
Winshigher is better
Jack Perkins
.0002.80
now 2
12
Sam Moll
.0002.80
now 1
01
Saveshigher is better
Jack Perkins
.0004.40
now 3
23
Sam Moll
.0004.40
now 1
01
If you already own them — trade angle
Hold · steadyJack Perkins — hold.conf 0.60
Hold · wait & seeSam Moll — hold.conf 0.50
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