MLB Daily DeltaWeek 27 · September 30, 2026
Portrait of Bailey Ober
Bailey Ober
MIN · P
Change to
Portrait of Jack Flaherty
Jack Flaherty
DET · 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

Bailey Ober wins 1 (WHIP); Jack Flaherty wins 1 (ERA); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Bailey Ober
88.0
Jack Flaherty
92.7
Swinging-Strike %lg 11.0% · higher = better
Bailey Ober
10.0%
Jack Flaherty
12.2%
Strikeout %lg 22.0% · higher = better
Bailey Ober
17.1%
Jack Flaherty
26.0%
Chase %lg 28.5% · higher = better
Bailey Ober
29.9%
Jack Flaherty
27.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Bailey Ober
38.1%
Jack Flaherty
45.5%
Barrel % Allowedlg 8.0% · lower = better
Bailey Ober
9.9%
Jack Flaherty
8.2%
xwOBA Allowedlg .315 · lower = better
Bailey Ober
.330
Jack Flaherty
.321
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
3.676.42
lg xERA 4.10
now 4.59
4.46
Jack Flaherty
3.676.42
lg xERA 4.10
now 5.81
4.28
WHIPlower is better
Bailey Ober
1.061.77
now 1.22
1.32
Jack Flaherty
1.061.77
now 1.61
1.36

Volume · rest of season
Strikeoutshigher is better
Bailey Ober
4089.60
now 46
0
Jack Flaherty
4089.60
now 64
0
Winshigher is better
Bailey Ober
.0008.40
now 6
0–0
Jack Flaherty
.0008.40
now 0
0–0

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

If you already own them — trade angle
SellBailey Ober — sell.conf 0.72
Hold · leans sellJack Flaherty — hold.conf 0.60
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