MLB Daily DeltaWeek 17 · July 19, 2026
Portrait of Aaron Nola
Aaron Nola
PHI · P
Change to
Portrait of Michael Wacha
Michael Wacha
KC · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 11, 2 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
WHIP
W
SV n/a

Aaron Nola wins 1 (K); Michael Wacha wins 1 (WHIP); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Aaron Nola
92.2
Michael Wacha
93.1
Swinging-Strike %lg 11.0% · higher = better
Aaron Nola
12.8%
Michael Wacha
10.6%
Strikeout %lg 22.0% · higher = better
Aaron Nola
23.9%
Michael Wacha
19.7%
Chase %lg 28.5% · higher = better
Aaron Nola
32.6%
Michael Wacha
29.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Aaron Nola
39.6%
Michael Wacha
36.4%
Barrel % Allowedlg 8.0% · lower = better
Aaron Nola
10.1%
Michael Wacha
6.3%
xwOBA Allowedlg .315 · lower = better
Aaron Nola
.316
Michael Wacha
.315
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
Aaron Nola
2.306.48
lg xERA 4.10
now 5.55
4.14
Michael Wacha
2.306.48
lg xERA 4.10
now 3.23
4.12
WHIPlower is better
Aaron Nola
1.011.50
now 1.39
1.32
Michael Wacha
1.011.50
now 1.12
1.31

Volume · rest of season
Strikeoutshigher is better
Aaron Nola
47.4070.60
now 64
59
Michael Wacha
47.4070.60
now 65
53
Winshigher is better
Aaron Nola
.8006.20
now 3
24
Michael Wacha
.8006.20
now 4
25

SV — not applicable. Both pitch out of the rotation.

If you already own them — trade angle
Buy LowAaron Nola — buy low. The dip is a window to acquire.conf 0.90
Hold · steadyMichael Wacha — hold.conf 0.60
Tweet