MLB Daily DeltaWeek 17 · July 18, 2026
Portrait of Jack Perkins
Jack Perkins
ATH · P
Change to
Portrait of Kendry Rojas
Kendry Rojas
MIN · P
Change to
Who's more valuable, rest of season

Kendry Rojas.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and WHIP. Jack Perkins’s box score looks better right now, but it’s built on luck that won’t hold.

Head-to-head
K
ERA
WHIP
W
SV

Kendry Rojas wins 3 categories (K, ERA, WHIP); Jack Perkins wins 1 (SV); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jack Perkins
96.0
Kendry Rojas
95.9
Swinging-Strike %lg 11.0% · higher = better
Jack Perkins
13.2%
Kendry Rojas
12.3%
Strikeout %lg 22.0% · higher = better
Jack Perkins
27.3%
Kendry Rojas
25.6%
Chase %lg 28.5% · higher = better
Jack Perkins
33.7%
Kendry Rojas
25.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Perkins
39.4%
Kendry Rojas
36.4%
Barrel % Allowedlg 8.0% · lower = better
Jack Perkins
8.0%
Kendry Rojas
9.1%
xwOBA Allowedlg .315 · lower = better
Jack Perkins
.318
Kendry Rojas
.304
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
27.14
lg xERA 4.10
now 5.46
4.04
Kendry Rojas
27.14
lg xERA 4.10
now 1.26
3.70
WHIPlower is better
Jack Perkins
1.111.57
now 1.21
1.28
Kendry Rojas
1.111.57
now 1.47
1.24

Volume · rest of season
Strikeoutshigher is better
Jack Perkins
4040.60
now 33
29
Kendry Rojas
4040.60
now 14
31
Winshigher is better
Jack Perkins
.2003.80
now 2
13
Kendry Rojas
.2003.80
now 1
13
Saveshigher is better
Jack Perkins
.0005.60
now 3
24
Kendry Rojas
.0005.60
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 & seeKendry Rojas — hold.conf 0.50
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