MLB Daily DeltaWeek 16 · July 9, 2026
Portrait of Michael Petersen
Michael Petersen
MIA · P
Change to
Portrait of Shawn Armstrong
Shawn Armstrong
CLE · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 11, 3 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
WHIP
W
SV

Michael Petersen wins 1 (SV); Shawn Armstrong wins 1 (K); 3 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Michael Petersen
97.6
Shawn Armstrong
93.6
Swinging-Strike %lg 11.0% · higher = better
Michael Petersen
14.1%
Shawn Armstrong
12.6%
Strikeout %lg 22.0% · higher = better
Michael Petersen
30.3%
Shawn Armstrong
23.3%
Chase %lg 28.5% · higher = better
Michael Petersen
31.4%
Shawn Armstrong
24.8%
Hard-Hit % Allowedlg 40.0% · lower = better
Michael Petersen
47.3%
Shawn Armstrong
40.8%
Barrel % Allowedlg 8.0% · lower = better
Michael Petersen
12.1%
Shawn Armstrong
7.9%
xwOBA Allowedlg .315 · lower = better
Michael Petersen
.289
Shawn Armstrong
.313
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
3.383.92
lg xERA 4.10
now 3.63
3.69
Shawn Armstrong
3.383.92
lg xERA 4.10
now 3.60
3.70
WHIPlower is better
Michael Petersen
1.041.41
now 1.12
1.24
Shawn Armstrong
1.041.41
now 1.33
1.24

Volume · rest of season
Strikeoutshigher is better
Michael Petersen
4033.60
now 23
21
Shawn Armstrong
4033.60
now 19
28
Winshigher is better
Michael Petersen
.5202.48
now 1
12
Shawn Armstrong
.5202.48
now 1
12
Saveshigher is better
Michael Petersen
.0003.40
now 1
02
Shawn Armstrong
.0003.40
now 0
0
If you already own them — trade angle
Sell HighMichael Petersen — sell high. His value is peaking; good time to trade him.conf 0.73
Hold · wait & seeShawn Armstrong — hold.conf 0.50
Tweet