MLB Daily DeltaWeek 14 · July 1, 2026
Portrait of Jack Flaherty
Jack Flaherty
DET · P
Change to
Portrait of Tyler Mahle
Tyler Mahle
SF · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22. Take whoever fills a bigger need.

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

Jack Flaherty wins 2 (K, WHIP); Tyler Mahle wins 2 (ERA, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jack Flaherty
92.7
Tyler Mahle
92.4
Swinging-Strike %lg 11.0% · higher = better
Jack Flaherty
11.9%
Tyler Mahle
9.1%
Strikeout %lg 22.0% · higher = better
Jack Flaherty
26.7%
Tyler Mahle
22.3%
Chase %lg 28.5% · higher = better
Jack Flaherty
27.3%
Tyler Mahle
28.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Flaherty
47.2%
Tyler Mahle
36.1%
Barrel % Allowedlg 8.0% · lower = better
Jack Flaherty
8.1%
Tyler Mahle
8.2%
xwOBA Allowedlg .315 · lower = better
Jack Flaherty
.324
Tyler Mahle
.322
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
3.516.76
lg xERA 4.10
now 5.81
4.27
Tyler Mahle
3.516.76
lg xERA 4.10
now 6.04
4.23
WHIPlower is better
Jack Flaherty
1.301.70
now 1.61
1.39
Tyler Mahle
1.301.70
now 1.54
1.40

Volume · rest of season
Strikeoutshigher is better
Jack Flaherty
46.2094.80
now 64
84
Tyler Mahle
46.2094.80
now 57
74
Winshigher is better
Jack Flaherty
.0002.80
now 0
00
Tyler Mahle
.0002.80
now 1
12

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

If you already own them — trade angle
Hold · leans sellJack Flaherty — hold.conf 0.60
Buy LowTyler Mahle — buy low. The dip is a window to acquire.conf 0.90
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