MLB Daily DeltaWeek 19 · August 3, 2026
Aaron Bummer
KC · P
Change to
Jack Dreyer
LAD · 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

Aaron Bummer wins 0 (none); Jack Dreyer 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
Aaron Bummer
90.5
Jack Dreyer
93.9
Swinging-Strike %lg 11.0% · higher = better
Aaron Bummer
10.6%
Jack Dreyer
13.3%
Strikeout %lg 22.0% · higher = better
Aaron Bummer
16.9%
Jack Dreyer
28.7%
Chase %lg 28.5% · higher = better
Aaron Bummer
27.4%
Jack Dreyer
31.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Aaron Bummer
54.7%
Jack Dreyer
40.5%
Barrel % Allowedlg 8.0% · lower = better
Aaron Bummer
15.1%
Jack Dreyer
7.2%
xwOBA Allowedlg .315 · lower = better
Aaron Bummer
.386
Jack Dreyer
.288
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
Jack Dreyer
28.25
lg xERA 4.10
now 2.78
3.69
WHIPlower is better
Aaron Bummer
.9002.34
now 1.96
1.24
Jack Dreyer
.9002.34
now 1.01
1.24

Volume · rest of season
Strikeoutshigher is better
Aaron Bummer
4029.60
now 13
16
Jack Dreyer
4029.60
now 24
16
Winshigher is better
Aaron Bummer
.0002.80
now 1
01
Jack Dreyer
.0002.80
now 2
12

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

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