MLB Daily DeltaWeek 19 · August 1, 2026
Portrait of David Peterson
David Peterson
CHC · P
Change to
Portrait of Dustin May
Dustin May
STL · P
Change to
Who's more valuable, rest of season

Dustin May.

He projects to help you in more roto categories the rest of the way — ERA and WHIP.

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

Dustin May wins 2 categories (ERA, WHIP); David Peterson wins 1 (K); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
David Peterson
92.3
Dustin May
96.9
Swinging-Strike %lg 11.0% · higher = better
David Peterson
9.8%
Dustin May
10.5%
Strikeout %lg 22.0% · higher = better
David Peterson
18.0%
Dustin May
23.1%
Chase %lg 28.5% · higher = better
David Peterson
28.9%
Dustin May
29.8%
Hard-Hit % Allowedlg 40.0% · lower = better
David Peterson
43.5%
Dustin May
46.1%
Barrel % Allowedlg 8.0% · lower = better
David Peterson
6.8%
Dustin May
6.5%
xwOBA Allowedlg .315 · lower = better
David Peterson
.346
Dustin May
.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
David Peterson
3.405.69
lg xERA 4.10
now 5.18
4.78
Dustin May
3.405.69
lg xERA 4.10
now 4.57
3.91
WHIPlower is better
David Peterson
1.181.71
now 1.59
1.44
Dustin May
1.181.71
now 1.30
1.33

Volume · rest of season
Strikeoutshigher is better
David Peterson
4063.60
now 56
45
Dustin May
4063.60
now 51
37
Winshigher is better
David Peterson
.2003.80
now 3
13
Dustin May
.2003.80
now 3
13

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

If you already own them — trade angle
SellDavid Peterson — sell.conf 0.86
Buy LowDustin May — buy low. The dip is a window to acquire.conf 0.74
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