MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Jack Flaherty
Jack Flaherty
DET · P
Change to
Matt Waldron
WSH · P
Change to
Who's more valuable, rest of season

Matt Waldron.

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

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

Matt Waldron wins 2 categories (ERA, WHIP); Jack Flaherty 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
Jack Flaherty
92.7
Matt Waldron
92.0
Swinging-Strike %lg 11.0% · higher = better
Jack Flaherty
12.2%
Matt Waldron
8.8%
Strikeout %lg 22.0% · higher = better
Jack Flaherty
26.2%
Matt Waldron
17.0%
Chase %lg 28.5% · higher = better
Jack Flaherty
27.6%
Matt Waldron
31.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Flaherty
46.2%
Matt Waldron
36.5%
Barrel % Allowedlg 8.0% · lower = better
Jack Flaherty
8.4%
Matt Waldron
5.4%
xwOBA Allowedlg .315 · lower = better
Jack Flaherty
.323
Matt Waldron
.292
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
2.328.25
lg xERA 4.10
now 5.81
4.30
Matt Waldron
2.328.25
lg xERA 4.10
now 8.49
4.08
WHIPlower is better
Jack Flaherty
1.141.87
now 1.61
1.36
Matt Waldron
1.141.87
now 1.71
1.30

Volume · rest of season
Strikeoutshigher is better
Jack Flaherty
4085.20
now 64
15
Matt Waldron
4085.20
now 22
11
Winshigher is better
Jack Flaherty
.0001.48
now 0
00
Matt Waldron
.0001.48
now 1
01

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

If you already own them — trade angle
SellJack Flaherty — sell.conf 0.64
Buy LowMatt Waldron — buy low. The dip is a window to acquire.conf 0.90
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