MLB Daily DeltaWeek 17 · July 21, 2026
Portrait of Peyton Gray
Peyton Gray
TEX · 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 11, 2 even. Take whoever fills a bigger need.

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

Peyton Gray wins 1 (K); Tim Mayza 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
Peyton Gray
92.7
Tim Mayza
95.0
Swinging-Strike %lg 11.0% · higher = better
Peyton Gray
12.8%
Tim Mayza
10.7%
Strikeout %lg 22.0% · higher = better
Peyton Gray
25.2%
Tim Mayza
24.6%
Chase %lg 28.5% · higher = better
Peyton Gray
32.7%
Tim Mayza
28.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Peyton Gray
33.3%
Tim Mayza
45.2%
Barrel % Allowedlg 8.0% · lower = better
Peyton Gray
6.1%
Tim Mayza
7.3%
xwOBA Allowedlg .315 · lower = better
Peyton Gray
.279
Tim Mayza
.286
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
Peyton Gray
3.353.92
lg xERA 4.10
now 3.57
3.70
Tim Mayza
3.353.92
lg xERA 4.10
now 3.62
3.68
WHIPlower is better
Peyton Gray
.9001.42
now 1.30
1.24
Tim Mayza
.9001.42
now 0.99
1.24

Volume · rest of season
Strikeoutshigher is better
Peyton Gray
4031.60
now 18
22
Tim Mayza
4031.60
now 26
21
Winshigher is better
Peyton Gray
.0002.80
now 1
12
Tim Mayza
.0002.80
now 1
01

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

If you already own them — trade angle
Hold · wait & seePeyton Gray — hold.conf 0.50
Hold · wait & seeTim Mayza — hold.conf 0.50
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