MLB Daily DeltaWeek 13 · June 24, 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

Stephen Kolek.

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

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

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

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Bailey Ober
88.5
Stephen Kolek
94.1
Swinging-Strike %lg 11.0% · higher = better
Bailey Ober
9.6%
Stephen Kolek
9.7%
Strikeout %lg 22.0% · higher = better
Bailey Ober
16.4%
Stephen Kolek
16.0%
Chase %lg 28.5% · higher = better
Bailey Ober
30.1%
Stephen Kolek
26.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Bailey Ober
32.7%
Stephen Kolek
38.6%
Barrel % Allowedlg 8.0% · lower = better
Bailey Ober
9.8%
Stephen Kolek
7.2%
xwOBA Allowedlg .315 · lower = better
Bailey Ober
.323
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
Bailey Ober
3.045.03
lg xERA 4.10
now 4.59
4.24
Stephen Kolek
3.045.03
lg xERA 4.10
now 3.48
3.77
WHIPlower is better
Bailey Ober
.9001.46
now 1.22
1.31
Stephen Kolek
.9001.46
now 0.94
1.30

Volume · rest of season
Strikeoutshigher is better
Bailey Ober
4086.20
now 46
67
Stephen Kolek
4086.20
now 19
46
Winshigher is better
Bailey Ober
.20012.80
now 6
510
Stephen Kolek
.20012.80
now 3
510

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

If you already own them — trade angle
Hold · leans sellBailey Ober — hold.conf 0.60
BuyStephen Kolek — buy.conf 0.70
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