MLB Daily DeltaWeek 27 · September 29, 2026
Portrait of Justin Sterner
Justin Sterner
ATH · 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

Justin Sterner 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
Justin Sterner
93.5
Michael Petersen
98.0
Swinging-Strike %lg 11.0% · higher = better
Justin Sterner
15.6%
Michael Petersen
15.3%
Strikeout %lg 22.0% · higher = better
Justin Sterner
21.7%
Michael Petersen
30.1%
Chase %lg 28.5% · higher = better
Justin Sterner
33.9%
Michael Petersen
33.8%
Hard-Hit % Allowedlg 40.0% · lower = better
Justin Sterner
45.0%
Michael Petersen
43.2%
Barrel % Allowedlg 8.0% · lower = better
Justin Sterner
9.2%
Michael Petersen
12.3%
xwOBA Allowedlg .315 · lower = better
Justin Sterner
.292
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
Justin Sterner
3.233.91
lg xERA 4.10
now 3.54
3.69
Michael Petersen
3.233.91
lg xERA 4.10
now 3.63
3.45
WHIPlower is better
Justin Sterner
1.041.35
now 1.11
1.24
Michael Petersen
1.041.35
now 1.12
1.28

Volume · rest of season
Strikeoutshigher is better
Justin Sterner
4036.40
now 26
0
Michael Petersen
4036.40
now 23
0
Winshigher is better
Justin Sterner
.0002.80
now 2
0–0
Michael Petersen
.0002.80
now 1
0–0

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

If you already own them — trade angle
Hold · wait & seeJustin Sterner — 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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