MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of David Peterson
David Peterson
CHC · P
Change to
Portrait of Randy Vásquez
Randy Vásquez
SD · P
Change to
Who's more valuable, rest of season

David Peterson.

He projects to help you in more roto categories the rest of the way — strikeouts and ERA. Randy Vásquez’s box score looks better right now, but the luck-stripped projection flips it.

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

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

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
David Peterson
92.5
Randy Vásquez
95.1
Swinging-Strike %lg 11.0% · higher = better
David Peterson
10.2%
Randy Vásquez
9.7%
Strikeout %lg 22.0% · higher = better
David Peterson
19.5%
Randy Vásquez
15.0%
Chase %lg 28.5% · higher = better
David Peterson
28.6%
Randy Vásquez
27.7%
Hard-Hit % Allowedlg 40.0% · lower = better
David Peterson
40.6%
Randy Vásquez
44.4%
Barrel % Allowedlg 8.0% · lower = better
David Peterson
6.2%
Randy Vásquez
10.0%
xwOBA Allowedlg .315 · lower = better
David Peterson
.341
Randy Vásquez
.358
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
2.525.94
lg xERA 4.10
now 5.18
4.67
Randy Vásquez
2.525.94
lg xERA 4.10
now 3.28
5.06
WHIPlower is better
David Peterson
1.091.73
now 1.59
1.47
Randy Vásquez
1.091.73
now 1.23
1.35

Volume · rest of season
Strikeoutshigher is better
David Peterson
4074.40
now 56
12
Randy Vásquez
4074.40
now 47
10
Winshigher is better
David Peterson
.0007
now 3
01
Randy Vásquez
.0007
now 5
11

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

If you already own them — trade angle
SellDavid Peterson — sell.conf 0.81
SellRandy Vásquez — sell.conf 0.90
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