MLB Daily DeltaWeek 19 · July 30, 2026
Portrait of Jack Flaherty
Jack Flaherty
DET · P
Change to
Portrait of Steven Matz
Steven Matz
TB · P
Change to
Who's more valuable, rest of season

Jack Flaherty.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and WHIP. Steven Matz’s box score looks better right now, but the luck-stripped projection flips it.

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

Jack Flaherty wins 3 categories (K, ERA, WHIP); Steven Matz wins 1 (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
Steven Matz
93.3
Swinging-Strike %lg 11.0% · higher = better
Jack Flaherty
12.2%
Steven Matz
10.1%
Strikeout %lg 22.0% · higher = better
Jack Flaherty
26.2%
Steven Matz
17.4%
Chase %lg 28.5% · higher = better
Jack Flaherty
27.6%
Steven Matz
27.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Flaherty
46.2%
Steven Matz
36.2%
Barrel % Allowedlg 8.0% · lower = better
Jack Flaherty
8.4%
Steven Matz
12.6%
xwOBA Allowedlg .315 · lower = better
Jack Flaherty
.323
Steven Matz
.361
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
3.716.41
lg xERA 4.10
now 5.81
4.31
Steven Matz
3.716.41
lg xERA 4.10
now 4.67
5.13
WHIPlower is better
Jack Flaherty
1.091.76
now 1.61
1.36
Steven Matz
1.091.76
now 1.24
1.37

Volume · rest of season
Strikeoutshigher is better
Jack Flaherty
4075.60
now 64
53
Steven Matz
4075.60
now 35
38
Winshigher is better
Jack Flaherty
.0007
now 0
00
Steven Matz
.0007
now 4
35

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

If you already own them — trade angle
SellJack Flaherty — sell.conf 0.65
SellSteven Matz — sell.conf 0.90
Tweet