MLB Daily DeltaWeek 27 · September 29, 2026
Burch Smith
DET · 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

Burch Smith 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
Burch Smith
93.8
Michael Petersen
98.0
Swinging-Strike %lg 11.0% · higher = better
Burch Smith
10.4%
Michael Petersen
15.3%
Strikeout %lg 22.0% · higher = better
Burch Smith
27.4%
Michael Petersen
30.1%
Chase %lg 28.5% · higher = better
Burch Smith
26.2%
Michael Petersen
33.8%
Hard-Hit % Allowedlg 40.0% · lower = better
Burch Smith
47.8%
Michael Petersen
43.2%
Barrel % Allowedlg 8.0% · lower = better
Burch Smith
4.3%
Michael Petersen
12.3%
xwOBA Allowedlg .315 · lower = better
Burch Smith
.287
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
Burch Smith
2.963.92
lg xERA 4.10
now 3.18
3.70
Michael Petersen
2.963.92
lg xERA 4.10
now 3.63
3.45
WHIPlower is better
Burch Smith
.9801.61
now 1.47
1.24
Michael Petersen
.9801.61
now 1.12
1.28

Volume · rest of season
Strikeoutshigher is better
Burch Smith
4032.20
now 20
0
Michael Petersen
4032.20
now 23
0
Winshigher is better
Burch Smith
.0001.48
now 0
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 & seeBurch Smith — hold.conf 0.50
Sell HighMichael Petersen — sell high. His value is peaking; good time to trade him.conf 0.82
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