MLB Daily DeltaWeek 20 · August 7, 2026
David Morgan
SD · P
Change to
Portrait of Tim Mayza
Tim Mayza
PHI · 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

David Morgan wins 2 (K, W); Tim Mayza wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
David Morgan
97.4
Tim Mayza
94.7
Swinging-Strike %lg 11.0% · higher = better
David Morgan
16.1%
Tim Mayza
10.7%
Strikeout %lg 22.0% · higher = better
David Morgan
24.8%
Tim Mayza
24.5%
Chase %lg 28.5% · higher = better
David Morgan
36.3%
Tim Mayza
27.6%
Hard-Hit % Allowedlg 40.0% · lower = better
David Morgan
27.0%
Tim Mayza
44.8%
Barrel % Allowedlg 8.0% · lower = better
David Morgan
1.6%
Tim Mayza
7.0%
xwOBA Allowedlg .315 · lower = better
David Morgan
.284
Tim Mayza
.284
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
David Morgan
2.556.06
lg xERA 4.10
now 5.28
3.70
Tim Mayza
2.556.06
lg xERA 4.10
now 3.62
3.33
WHIPlower is better
David Morgan
.9002.25
now 1.89
1.24
Tim Mayza
.9002.25
now 0.99
1.22

Volume · rest of season
Strikeoutshigher is better
David Morgan
4031.60
now 17
17
Tim Mayza
4031.60
now 26
15
Winshigher is better
David Morgan
.0004.20
now 2
13
Tim Mayza
.0004.20
now 1
01

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

If you already own them — trade angle
Buy LowDavid Morgan — buy low. The dip is a window to acquire.conf 0.90
BuyTim Mayza — buy.conf 0.83
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