MLB Daily DeltaWeek 27 · September 29, 2026
Portrait of Craig Kimbrel
Craig Kimbrel
KC · 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

Craig Kimbrel 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
Craig Kimbrel
93.6
Michael Petersen
98.0
Swinging-Strike %lg 11.0% · higher = better
Craig Kimbrel
11.1%
Michael Petersen
15.3%
Strikeout %lg 22.0% · higher = better
Craig Kimbrel
20.4%
Michael Petersen
30.1%
Chase %lg 28.5% · higher = better
Craig Kimbrel
28.7%
Michael Petersen
33.8%
Hard-Hit % Allowedlg 40.0% · lower = better
Craig Kimbrel
36.6%
Michael Petersen
43.2%
Barrel % Allowedlg 8.0% · lower = better
Craig Kimbrel
5.3%
Michael Petersen
12.3%
xwOBA Allowedlg .315 · lower = better
Craig Kimbrel
.316
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
Craig Kimbrel
2.586.50
lg xERA 4.10
now 5.63
3.70
Michael Petersen
2.586.50
lg xERA 4.10
now 3.63
3.45
WHIPlower is better
Craig Kimbrel
.9901.57
now 1.44
1.24
Michael Petersen
.9901.57
now 1.12
1.28

Volume · rest of season
Strikeoutshigher is better
Craig Kimbrel
4032.20
now 17
0
Michael Petersen
4032.20
now 23
0
Winshigher is better
Craig Kimbrel
.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 & seeCraig Kimbrel — 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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