MLB Daily DeltaWeek 19 · August 5, 2026
Portrait of David Peterson
David Peterson
CHC · P
Change to
Portrait of Framber Valdez
Framber Valdez
DET · 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

David Peterson wins 2 (K, W); Framber Valdez wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
David Peterson
92.3
Framber Valdez
94.9
Swinging-Strike %lg 11.0% · higher = better
David Peterson
9.9%
Framber Valdez
9.9%
Strikeout %lg 22.0% · higher = better
David Peterson
18.8%
Framber Valdez
18.4%
Chase %lg 28.5% · higher = better
David Peterson
29.3%
Framber Valdez
32.4%
Hard-Hit % Allowedlg 40.0% · lower = better
David Peterson
42.5%
Framber Valdez
43.4%
Barrel % Allowedlg 8.0% · lower = better
David Peterson
7.1%
Framber Valdez
6.3%
xwOBA Allowedlg .315 · lower = better
David Peterson
.343
Framber Valdez
.320
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
3.865.56
lg xERA 4.10
now 5.18
4.71
Framber Valdez
3.865.56
lg xERA 4.10
now 4.39
4.24
WHIPlower is better
David Peterson
1.211.70
now 1.59
1.41
Framber Valdez
1.211.70
now 1.32
1.38

Volume · rest of season
Strikeoutshigher is better
David Peterson
4064
now 56
40
Framber Valdez
4064
now 54
36
Winshigher is better
David Peterson
.2003.80
now 3
13
Framber Valdez
.2003.80
now 2
12

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

If you already own them — trade angle
SellDavid Peterson — sell.conf 0.83
Hold · leans sellFramber Valdez — hold.conf 0.60
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