MLB Daily DeltaWeek 15 · July 5, 2026
Logan Webb
SF · 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

Logan Webb 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
Logan Webb
92.5
Stephen Kolek
94.2
Swinging-Strike %lg 11.0% · higher = better
Logan Webb
9.7%
Stephen Kolek
9.6%
Strikeout %lg 22.0% · higher = better
Logan Webb
20.4%
Stephen Kolek
15.2%
Chase %lg 28.5% · higher = better
Logan Webb
33.4%
Stephen Kolek
26.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Logan Webb
42.5%
Stephen Kolek
36.9%
Barrel % Allowedlg 8.0% · lower = better
Logan Webb
5.8%
Stephen Kolek
6.8%
xwOBA Allowedlg .315 · lower = better
Logan Webb
.309
Stephen Kolek
.303
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
Logan Webb
2.945.36
lg xERA 4.10
now 4.82
3.96
Stephen Kolek
2.945.36
lg xERA 4.10
now 3.48
3.79
WHIPlower is better
Logan Webb
.9001.57
now 1.39
1.29
Stephen Kolek
.9001.57
now 0.94
1.32

Volume · rest of season
Strikeoutshigher is better
Logan Webb
4082
now 47
64
Stephen Kolek
4082
now 19
41
Winshigher is better
Logan Webb
.00011.80
now 2
24
Stephen Kolek
.00011.80
now 3
49

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

If you already own them — trade angle
Hold · steadyLogan Webb — hold.conf 0.60
BuyStephen Kolek — buy.conf 0.69
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