MLB Daily DeltaWeek 17 · July 20, 2026
Portrait of Dustin May
Dustin May
STL · 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 11, 2 even. Take whoever fills a bigger need.

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

Dustin May wins 1 (WHIP); Trevor McDonald wins 1 (K); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Dustin May
96.9
Trevor McDonald
94.0
Swinging-Strike %lg 11.0% · higher = better
Dustin May
10.5%
Trevor McDonald
9.6%
Strikeout %lg 22.0% · higher = better
Dustin May
22.9%
Trevor McDonald
18.6%
Chase %lg 28.5% · higher = better
Dustin May
30.1%
Trevor McDonald
29.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Dustin May
45.4%
Trevor McDonald
37.6%
Barrel % Allowedlg 8.0% · lower = better
Dustin May
6.1%
Trevor McDonald
3.9%
xwOBA Allowedlg .315 · lower = better
Dustin May
.306
Trevor McDonald
.306
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
Dustin May
3.634.84
lg xERA 4.10
now 4.57
3.90
Trevor McDonald
3.634.84
lg xERA 4.10
now 4.34
3.90
WHIPlower is better
Dustin May
.9601.46
now 1.30
1.34
Trevor McDonald
.9601.46
now 1.07
1.35

Volume · rest of season
Strikeoutshigher is better
Dustin May
4060.60
now 51
45
Trevor McDonald
4060.60
now 27
49
Winshigher is better
Dustin May
.8006.20
now 3
24
Trevor McDonald
.8006.20
now 2
25

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

If you already own them — trade angle
Buy LowDustin May — buy low. The dip is a window to acquire.conf 0.86
Hold · leans buyTrevor McDonald — hold.conf 0.60
Tweet