MLB Daily DeltaWeek 19 · August 3, 2026
Aaron Bummer
KC · P
Change to
Portrait of Tim Mayza
Tim Mayza
PHI · P
Change to
Who's more valuable, rest of season

Tim Mayza.

He projects to help you in more roto categories the rest of the way — ERA.

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

Tim Mayza wins 1 categories (ERA); Aaron Bummer wins 0 (none); 3 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Aaron Bummer
90.5
Tim Mayza
94.8
Swinging-Strike %lg 11.0% · higher = better
Aaron Bummer
10.6%
Tim Mayza
10.9%
Strikeout %lg 22.0% · higher = better
Aaron Bummer
16.9%
Tim Mayza
24.2%
Chase %lg 28.5% · higher = better
Aaron Bummer
27.4%
Tim Mayza
28.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Aaron Bummer
54.7%
Tim Mayza
45.3%
Barrel % Allowedlg 8.0% · lower = better
Aaron Bummer
15.1%
Tim Mayza
7.3%
xwOBA Allowedlg .315 · lower = better
Aaron Bummer
.386
Tim Mayza
.285
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
Aaron Bummer
28.25
lg xERA 4.10
now 8.82
3.70
Tim Mayza
28.25
lg xERA 4.10
now 3.62
3.68
WHIPlower is better
Aaron Bummer
.9002.35
now 1.96
1.24
Tim Mayza
.9002.35
now 0.99
1.24

Volume · rest of season
Strikeoutshigher is better
Aaron Bummer
4031.60
now 13
16
Tim Mayza
4031.60
now 26
16
Winshigher is better
Aaron Bummer
.0001.48
now 1
01
Tim Mayza
.0001.48
now 1
01

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

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