MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Michael Petersen
Michael Petersen
MIA · P
Change to
Portrait of Tyler Rogers
Tyler Rogers
TOR · P
Change to
Who's more valuable, rest of season

Michael Petersen.

He projects to help you in more roto categories the rest of the way — strikeouts and WHIP.

Head-to-head
K
ERA
WHIP
W
SV n/a

Michael Petersen wins 2 categories (K, WHIP); Tyler Rogers wins 1 (ERA); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Michael Petersen
97.9
Tyler Rogers
83.3
Swinging-Strike %lg 11.0% · higher = better
Michael Petersen
14.8%
Tyler Rogers
7.5%
Strikeout %lg 22.0% · higher = better
Michael Petersen
28.6%
Tyler Rogers
13.4%
Chase %lg 28.5% · higher = better
Michael Petersen
33.5%
Tyler Rogers
27.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Michael Petersen
41.3%
Tyler Rogers
26.9%
Barrel % Allowedlg 8.0% · lower = better
Michael Petersen
10.1%
Tyler Rogers
1.4%
xwOBA Allowedlg .315 · lower = better
Michael Petersen
.286
Tyler Rogers
.259
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
Michael Petersen
24.14
lg xERA 4.10
now 3.63
3.39
Tyler Rogers
24.14
lg xERA 4.10
now 2.36
2.76
WHIPlower is better
Michael Petersen
1.021.47
now 1.12
1.30
Tyler Rogers
1.021.47
now 1.13
1.37

Volume · rest of season
Strikeoutshigher is better
Michael Petersen
4031
now 23
4
Tyler Rogers
4031
now 16
3
Winshigher is better
Michael Petersen
.0001.48
now 1
00
Tyler Rogers
.0001.48
now 1
00

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

If you already own them — trade angle
BuyMichael Petersen — buy.conf 0.81
Sell HighTyler Rogers — sell high. His value is peaking; good time to trade him.conf 0.95
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