MLB Daily DeltaWeek 19 · August 1, 2026
Jack Dreyer
LAD · 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 00, 4 even. Take whoever fills a bigger need.

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

Jack Dreyer wins 0 (none); Tim Mayza wins 0 (none); 4 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jack Dreyer
93.9
Tim Mayza
94.8
Swinging-Strike %lg 11.0% · higher = better
Jack Dreyer
13.3%
Tim Mayza
10.7%
Strikeout %lg 22.0% · higher = better
Jack Dreyer
28.7%
Tim Mayza
24.6%
Chase %lg 28.5% · higher = better
Jack Dreyer
31.7%
Tim Mayza
27.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Dreyer
40.5%
Tim Mayza
44.4%
Barrel % Allowedlg 8.0% · lower = better
Jack Dreyer
7.2%
Tim Mayza
7.4%
xwOBA Allowedlg .315 · lower = better
Jack Dreyer
.288
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
Jack Dreyer
2.424.05
lg xERA 4.10
now 2.78
3.69
Tim Mayza
2.424.05
lg xERA 4.10
now 3.62
3.68
WHIPlower is better
Jack Dreyer
.9001.34
now 1.01
1.24
Tim Mayza
.9001.34
now 0.99
1.24

Volume · rest of season
Strikeoutshigher is better
Jack Dreyer
4031.60
now 24
17
Tim Mayza
4031.60
now 26
17
Winshigher is better
Jack Dreyer
.0002.80
now 2
12
Tim Mayza
.0002.80
now 1
01

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

If you already own them — trade angle
Sell HighJack Dreyer — sell high. His value is peaking; good time to trade him.conf 0.69
Hold · wait & seeTim Mayza — hold.conf 0.50
Tweet