MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Jack Flaherty
Jack Flaherty
DET · P
Change to
Portrait of Shane Baz
Shane Baz
BAL · 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

Jack Flaherty wins 1 (WHIP); Shane Baz 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
Jack Flaherty
92.7
Shane Baz
95.8
Swinging-Strike %lg 11.0% · higher = better
Jack Flaherty
12.2%
Shane Baz
10.4%
Strikeout %lg 22.0% · higher = better
Jack Flaherty
26.2%
Shane Baz
20.0%
Chase %lg 28.5% · higher = better
Jack Flaherty
27.6%
Shane Baz
29.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Flaherty
46.2%
Shane Baz
41.2%
Barrel % Allowedlg 8.0% · lower = better
Jack Flaherty
8.4%
Shane Baz
6.8%
xwOBA Allowedlg .315 · lower = better
Jack Flaherty
.323
Shane Baz
.317
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
Jack Flaherty
3.566.45
lg xERA 4.10
now 5.81
4.32
Shane Baz
3.566.45
lg xERA 4.10
now 4.48
4.20
WHIPlower is better
Jack Flaherty
1.261.71
now 1.61
1.36
Shane Baz
1.261.71
now 1.43
1.38

Volume · rest of season
Strikeoutshigher is better
Jack Flaherty
4089.60
now 64
0
Shane Baz
4089.60
now 57
0
Winshigher is better
Jack Flaherty
.0002.80
now 0
0–0
Shane Baz
.0002.80
now 2
0–0

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

If you already own them — trade angle
SellJack Flaherty — sell.conf 0.65
Hold · leans sellShane Baz — hold.conf 0.60
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