MLB Daily DeltaWeek 20 · August 9, 2026
Portrait of Jack Perkins
Jack Perkins
ATH · P
Change to
Portrait of Kevin Ginkel
Kevin Ginkel
AZ · 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); Kevin Ginkel 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
Kevin Ginkel
95.5
Swinging-Strike %lg 11.0% · higher = better
Jack Perkins
13.3%
Kevin Ginkel
14.4%
Strikeout %lg 22.0% · higher = better
Jack Perkins
26.4%
Kevin Ginkel
22.6%
Chase %lg 28.5% · higher = better
Jack Perkins
33.3%
Kevin Ginkel
35.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Perkins
38.4%
Kevin Ginkel
41.7%
Barrel % Allowedlg 8.0% · lower = better
Jack Perkins
9.6%
Kevin Ginkel
9.4%
xwOBA Allowedlg .315 · lower = better
Jack Perkins
.315
Kevin Ginkel
.308
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
2.146.41
lg xERA 4.10
now 5.46
3.99
Kevin Ginkel
2.146.41
lg xERA 4.10
now 3.09
3.71
WHIPlower is better
Jack Perkins
.9801.39
now 1.21
1.30
Kevin Ginkel
.9801.39
now 1.07
1.24

Volume · rest of season
Strikeoutshigher is better
Jack Perkins
4039
now 33
20
Kevin Ginkel
4039
now 28
18
Winshigher is better
Jack Perkins
.0002.80
now 2
12
Kevin Ginkel
.0002.80
now 1
01
Saveshigher is better
Jack Perkins
.0004.40
now 3
12
Kevin Ginkel
.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 · wait & seeKevin Ginkel — hold.conf 0.50
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