MLB Daily DeltaWeek 15 · July 2, 2026
Portrait of Ryan Weathers
Ryan Weathers
NYY · P
Change to
Portrait of Stephen Kolek
Stephen Kolek
KC · 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

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

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Ryan Weathers
95.8
Stephen Kolek
94.1
Swinging-Strike %lg 11.0% · higher = better
Ryan Weathers
12.0%
Stephen Kolek
9.7%
Strikeout %lg 22.0% · higher = better
Ryan Weathers
26.7%
Stephen Kolek
16.0%
Chase %lg 28.5% · higher = better
Ryan Weathers
29.8%
Stephen Kolek
26.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Ryan Weathers
42.8%
Stephen Kolek
38.6%
Barrel % Allowedlg 8.0% · lower = better
Ryan Weathers
11.1%
Stephen Kolek
7.2%
xwOBA Allowedlg .315 · lower = better
Ryan Weathers
.332
Stephen Kolek
.304
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
Ryan Weathers
3.104.81
lg xERA 4.10
now 3.52
4.43
Stephen Kolek
3.104.81
lg xERA 4.10
now 3.48
3.80
WHIPlower is better
Ryan Weathers
.9001.44
now 1.14
1.20
Stephen Kolek
.9001.44
now 0.94
1.30

Volume · rest of season
Strikeoutshigher is better
Ryan Weathers
40105.80
now 75
81
Stephen Kolek
40105.80
now 19
42
Winshigher is better
Ryan Weathers
.00011.80
now 2
23
Stephen Kolek
.00011.80
now 3
49

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

If you already own them — trade angle
SellRyan Weathers — sell.conf 0.70
BuyStephen Kolek — buy.conf 0.69
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