MLB Daily DeltaWeek 20 · August 8, 2026
Portrait of Bailey Ober
Bailey Ober
MIN · P
Change to
Portrait of Stephen Kolek
Stephen Kolek
KC · P
Change to
Who's more valuable, rest of season

Bailey Ober.

He projects to help you in more roto categories the rest of the way — strikeouts and WHIP.

Head-to-head
K
ERA
WHIP
W
SV n/a

Bailey Ober wins 2 categories (K, WHIP); Stephen Kolek wins 1 (ERA); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Bailey Ober
88.2
Stephen Kolek
94.2
Swinging-Strike %lg 11.0% · higher = better
Bailey Ober
9.6%
Stephen Kolek
9.6%
Strikeout %lg 22.0% · higher = better
Bailey Ober
16.2%
Stephen Kolek
15.2%
Chase %lg 28.5% · higher = better
Bailey Ober
29.2%
Stephen Kolek
26.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Bailey Ober
33.1%
Stephen Kolek
36.9%
Barrel % Allowedlg 8.0% · lower = better
Bailey Ober
9.7%
Stephen Kolek
6.8%
xwOBA Allowedlg .315 · lower = better
Bailey Ober
.323
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
Bailey Ober
3.045.03
lg xERA 4.10
now 4.59
4.29
Stephen Kolek
3.045.03
lg xERA 4.10
now 3.48
3.82
WHIPlower is better
Bailey Ober
.9001.47
now 1.22
1.31
Stephen Kolek
.9001.47
now 0.94
1.32

Volume · rest of season
Strikeoutshigher is better
Bailey Ober
4056.80
now 46
32
Stephen Kolek
4056.80
now 19
24
Winshigher is better
Bailey Ober
.4007.60
now 6
25
Stephen Kolek
.4007.60
now 3
25

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

If you already own them — trade angle
Hold · leans sellBailey Ober — hold.conf 0.60
Hold · leans buyStephen Kolek — hold.conf 0.60
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