MLB Daily DeltaWeek 27 · September 29, 2026
Portrait of David Peterson
David Peterson
CHC · P
Change to
Patrick Sandoval
BOS · 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 — ERA.

Head-to-head
K
◀
ERA
WHIP
W
SV n/a

David Peterson wins 1 categories (ERA); Patrick Sandoval wins 0 (none); 3 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
Patrick Sandoval
93.4
Swinging-Strike %lg 11.0% · higher = better
David Peterson
10.5%
Patrick Sandoval
12.1%
Strikeout %lg 22.0% · higher = better
David Peterson
20.7%
Patrick Sandoval
22.7%
Chase %lg 28.5% · higher = better
David Peterson
28.8%
Patrick Sandoval
28.4%
Hard-Hit % Allowedlg 40.0% · lower = better
David Peterson
39.6%
Patrick Sandoval
34.6%
Barrel % Allowedlg 8.0% · lower = better
David Peterson
6.3%
Patrick Sandoval
6.5%
xwOBA Allowedlg .315 · lower = better
David Peterson
.333
Patrick Sandoval
.336
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
26.42
lg xERA 4.10
now 5.18
4.53
Patrick Sandoval
26.42
lg xERA 4.10
now 2.08
4.59
WHIPlower is better
David Peterson
1.301.67
now 1.59
1.44
Patrick Sandoval
1.301.67
now 1.38
1.44

Volume · rest of season
Strikeoutshigher is better
David Peterson
4078.40
now 56
0
Patrick Sandoval
4078.40
now 5
0
Winshigher is better
David Peterson
.0004.20
now 3
0–0
Patrick Sandoval
.0004.20
now 0
0–0

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

If you already own them — trade angle
SellDavid Peterson — sell.conf 0.75
SellPatrick Sandoval — sell.conf 0.78
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