MLB Daily DeltaWeek 18 · July 24, 2026
Portrait of Aaron Nola
Aaron Nola
PHI · P
Change to
Portrait of Trevor McDonald
Trevor McDonald
SF · P
Change to
Who's more valuable, rest of season

Too close to call.

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

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

Aaron Nola wins 2 (K, WHIP); Trevor McDonald wins 2 (ERA, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Aaron Nola
92.2
Trevor McDonald
94.0
Swinging-Strike %lg 11.0% · higher = better
Aaron Nola
12.7%
Trevor McDonald
9.5%
Strikeout %lg 22.0% · higher = better
Aaron Nola
23.6%
Trevor McDonald
18.4%
Chase %lg 28.5% · higher = better
Aaron Nola
32.3%
Trevor McDonald
29.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Aaron Nola
40.5%
Trevor McDonald
37.8%
Barrel % Allowedlg 8.0% · lower = better
Aaron Nola
10.4%
Trevor McDonald
4.1%
xwOBA Allowedlg .315 · lower = better
Aaron Nola
.320
Trevor McDonald
.312
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
3.496.14
lg xERA 4.10
now 5.55
4.24
Trevor McDonald
3.496.14
lg xERA 4.10
now 4.34
4.08
WHIPlower is better
Aaron Nola
.9401.52
now 1.39
1.32
Trevor McDonald
.9401.52
now 1.07
1.35

Volume · rest of season
Strikeoutshigher is better
Aaron Nola
4078.80
now 64
55
Trevor McDonald
4078.80
now 27
47
Winshigher is better
Aaron Nola
.8006.20
now 3
23
Trevor McDonald
.8006.20
now 2
25

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

If you already own them — trade angle
Hold · leans sellAaron Nola — hold.conf 0.60
Hold · steadyTrevor McDonald — hold.conf 0.60
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