MLB Daily DeltaWeek 17 · July 20, 2026
Portrait of George Kirby
George Kirby
SEA · P
Change to
Portrait of Ryan Weathers
Ryan Weathers
NYY · 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

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

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
George Kirby
96.7
Ryan Weathers
95.8
Swinging-Strike %lg 11.0% · higher = better
George Kirby
11.3%
Ryan Weathers
12.2%
Strikeout %lg 22.0% · higher = better
George Kirby
21.5%
Ryan Weathers
26.9%
Chase %lg 28.5% · higher = better
George Kirby
34.6%
Ryan Weathers
29.6%
Hard-Hit % Allowedlg 40.0% · lower = better
George Kirby
42.5%
Ryan Weathers
41.5%
Barrel % Allowedlg 8.0% · lower = better
George Kirby
7.2%
Ryan Weathers
10.0%
xwOBA Allowedlg .315 · lower = better
George Kirby
.305
Ryan Weathers
.324
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
George Kirby
3.204.63
lg xERA 4.10
now 3.77
3.88
Ryan Weathers
3.204.63
lg xERA 4.10
now 3.52
4.31
WHIPlower is better
George Kirby
1.071.38
now 1.22
1.31
Ryan Weathers
1.071.38
now 1.14
1.21

Volume · rest of season
Strikeoutshigher is better
George Kirby
4085.80
now 59
48
Ryan Weathers
4085.80
now 75
61
Winshigher is better
George Kirby
.0008
now 5
36
Ryan Weathers
.0008
now 2
12

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

If you already own them — trade angle
Hold · leans buyGeorge Kirby — hold.conf 0.60
SellRyan Weathers — sell.conf 0.65
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