MLB Daily DeltaWeek 27 · September 30, 2026
Hayden Wesneski
HOU · 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 1–1, 2 even. Take whoever fills a bigger need.

Head-to-head
K
◀
ERA
WHIP
▶
W
SV n/a

Hayden Wesneski wins 1 (ERA); Stephen Kolek wins 1 (WHIP); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Hayden Wesneski
93.5
Stephen Kolek
94.2
Swinging-Strike %lg 11.0% · higher = better
Hayden Wesneski
11.6%
Stephen Kolek
9.6%
Strikeout %lg 22.0% · higher = better
Hayden Wesneski
18.7%
Stephen Kolek
15.2%
Chase %lg 28.5% · higher = better
Hayden Wesneski
34.4%
Stephen Kolek
26.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Hayden Wesneski
39.9%
Stephen Kolek
36.9%
Barrel % Allowedlg 8.0% · lower = better
Hayden Wesneski
5.1%
Stephen Kolek
6.8%
xwOBA Allowedlg .315 · lower = better
Hayden Wesneski
.301
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
Hayden Wesneski
2.975.27
lg xERA 4.10
now 4.76
3.81
Stephen Kolek
2.975.27
lg xERA 4.10
now 3.48
3.87
WHIPlower is better
Hayden Wesneski
.9001.85
now 1.59
1.34
Stephen Kolek
.9001.85
now 0.94
1.32

Volume · rest of season
Strikeoutshigher is better
Hayden Wesneski
4026.60
now 4
0
Stephen Kolek
4026.60
now 19
0
Winshigher is better
Hayden Wesneski
.0004.20
now 1
0–0
Stephen Kolek
.0004.20
now 3
0–0

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

If you already own them — trade angle
Sell HighHayden Wesneski — sell high. His value is peaking; good time to trade him.conf 0.87
Hold · leans buyStephen Kolek — hold.conf 0.60
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