MLB Daily DeltaWeek 27 · September 30, 2026
Portrait of Adam Macko
Adam Macko
TEX · P
Change to
Portrait of Michael Petersen
Michael Petersen
MIA · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 1–1, 2 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
▶
◀
WHIP
W
SV n/a

Adam Macko wins 1 (WHIP); Michael Petersen 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
Adam Macko
94.6
Michael Petersen
98.0
Swinging-Strike %lg 11.0% · higher = better
Adam Macko
13.3%
Michael Petersen
15.3%
Strikeout %lg 22.0% · higher = better
Adam Macko
22.1%
Michael Petersen
30.1%
Chase %lg 28.5% · higher = better
Adam Macko
31.3%
Michael Petersen
33.8%
Hard-Hit % Allowedlg 40.0% · lower = better
Adam Macko
37.9%
Michael Petersen
43.2%
Barrel % Allowedlg 8.0% · lower = better
Adam Macko
6.3%
Michael Petersen
12.3%
xwOBA Allowedlg .315 · lower = better
Adam Macko
.343
Michael Petersen
.287
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
Adam Macko
25.18
lg xERA 4.10
now 0.00
3.70
Michael Petersen
25.18
lg xERA 4.10
now 3.63
3.45
WHIPlower is better
Adam Macko
.9001.39
now 1.00
1.24
Michael Petersen
.9001.39
now 1.12
1.28

Volume · rest of season
Strikeoutshigher is better
Adam Macko
4032.20
now 6
0
Michael Petersen
4032.20
now 23
0
Winshigher is better
Adam Macko
.0001.48
now 1
0–0
Michael Petersen
.0001.48
now 1
0–0

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

If you already own them — trade angle
Hold · wait & seeAdam Macko — hold.conf 0.50
Sell HighMichael Petersen — sell high. His value is peaking; good time to trade him.conf 0.82
Tweet