MLB Daily DeltaWeek 17 · July 19, 2026
Portrait of David Peterson
David Peterson
CHC · P
Change to
Ryan Feltner
COL · P
Change to
Who's more valuable, rest of season

Ryan Feltner.

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

Ryan Feltner 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
92.2
Ryan Feltner
94.7
Swinging-Strike %lg 11.0% · higher = better
David Peterson
9.9%
Ryan Feltner
11.8%
Strikeout %lg 22.0% · higher = better
David Peterson
18.3%
Ryan Feltner
17.6%
Chase %lg 28.5% · higher = better
David Peterson
29.4%
Ryan Feltner
26.3%
Hard-Hit % Allowedlg 40.0% · lower = better
David Peterson
43.0%
Ryan Feltner
39.0%
Barrel % Allowedlg 8.0% · lower = better
David Peterson
6.6%
Ryan Feltner
9.7%
xwOBA Allowedlg .315 · lower = better
David Peterson
.352
Ryan Feltner
.346
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
4.525.40
lg xERA 4.10
now 5.18
4.88
Ryan Feltner
4.525.40
lg xERA 4.10
now 4.85
4.74
WHIPlower is better
David Peterson
1.201.70
now 1.59
1.47
Ryan Feltner
1.201.70
now 1.31
1.38

Volume · rest of season
Strikeoutshigher is better
David Peterson
4070.80
now 56
56
Ryan Feltner
4070.80
now 19
35
Winshigher is better
David Peterson
.8006.20
now 3
24
Ryan Feltner
.8006.20
now 2
25

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

If you already own them — trade angle
SellDavid Peterson — sell.conf 0.90
Sell HighRyan Feltner — sell high. His value is peaking; good time to trade him.conf 0.87
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