MLB Daily DeltaWeek 18 · July 29, 2026
Brandon Woodruff
MIL · 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

Brandon Woodruff 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
Brandon Woodruff
91.8
Stephen Kolek
94.2
Swinging-Strike %lg 11.0% · higher = better
Brandon Woodruff
12.0%
Stephen Kolek
9.6%
Strikeout %lg 22.0% · higher = better
Brandon Woodruff
27.0%
Stephen Kolek
15.2%
Chase %lg 28.5% · higher = better
Brandon Woodruff
34.3%
Stephen Kolek
26.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Brandon Woodruff
34.5%
Stephen Kolek
36.9%
Barrel % Allowedlg 8.0% · lower = better
Brandon Woodruff
7.8%
Stephen Kolek
6.8%
xwOBA Allowedlg .315 · lower = better
Brandon Woodruff
.263
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
Brandon Woodruff
3.264.21
lg xERA 4.10
now 3.60
3.99
Stephen Kolek
3.264.21
lg xERA 4.10
now 3.48
3.85
WHIPlower is better
Brandon Woodruff
.9001.47
now 1.03
1.28
Stephen Kolek
.9001.47
now 0.94
1.32

Volume · rest of season
Strikeoutshigher is better
Brandon Woodruff
4042.80
now 25
36
Stephen Kolek
4042.80
now 19
29
Winshigher is better
Brandon Woodruff
.4007.60
now 2
24
Stephen Kolek
.4007.60
now 3
36

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

If you already own them — trade angle
Hold · wait & seeBrandon Woodruff — hold.conf 0.50
Hold · leans buyStephen Kolek — hold.conf 0.60
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