MLB Daily DeltaWeek 17 · July 17, 2026
Portrait of Freddy Peralta
Freddy Peralta
NYM · P
Change to
Portrait of George Kirby
George Kirby
SEA · 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

Freddy Peralta wins 2 (K, ERA); George Kirby wins 2 (WHIP, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Freddy Peralta
94.1
George Kirby
96.7
Swinging-Strike %lg 11.0% · higher = better
Freddy Peralta
12.4%
George Kirby
11.3%
Strikeout %lg 22.0% · higher = better
Freddy Peralta
22.3%
George Kirby
21.5%
Chase %lg 28.5% · higher = better
Freddy Peralta
29.2%
George Kirby
34.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Freddy Peralta
39.0%
George Kirby
42.5%
Barrel % Allowedlg 8.0% · lower = better
Freddy Peralta
5.4%
George Kirby
7.2%
xwOBA Allowedlg .315 · lower = better
Freddy Peralta
.303
George Kirby
.305
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
Freddy Peralta
3.334.07
lg xERA 4.10
now 3.55
3.79
George Kirby
3.334.07
lg xERA 4.10
now 3.77
3.85
WHIPlower is better
Freddy Peralta
1.151.44
now 1.30
1.37
George Kirby
1.151.44
now 1.22
1.31

Volume · rest of season
Strikeoutshigher is better
Freddy Peralta
44.2074.80
now 68
67
George Kirby
44.2074.80
now 59
51
Winshigher is better
Freddy Peralta
.4007.60
now 3
24
George Kirby
.4007.60
now 5
36

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

If you already own them — trade angle
BuyFreddy Peralta — buy.conf 0.69
Hold · leans buyGeorge Kirby — hold.conf 0.60
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