MLB Daily DeltaWeek 27 · September 28, 2026
Portrait of Andrés Muñoz
Andrés Muñoz
SEA · P
Change to
Portrait of Brent Headrick
Brent Headrick
NYY · 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

Andrés Muñoz wins 1 (WHIP); Brent Headrick 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
Andrés Muñoz
99.8
Brent Headrick
94.1
Swinging-Strike %lg 11.0% · higher = better
Andrés Muñoz
19.0%
Brent Headrick
16.7%
Strikeout %lg 22.0% · higher = better
Andrés Muñoz
37.1%
Brent Headrick
30.1%
Chase %lg 28.5% · higher = better
Andrés Muñoz
37.1%
Brent Headrick
33.8%
Hard-Hit % Allowedlg 40.0% · lower = better
Andrés Muñoz
43.7%
Brent Headrick
37.3%
Barrel % Allowedlg 8.0% · lower = better
Andrés Muñoz
8.7%
Brent Headrick
4.5%
xwOBA Allowedlg .315 · lower = better
Andrés Muñoz
.280
Brent Headrick
.271
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
Andrés Muñoz
25.86
lg xERA 4.10
now 4.76
3.27
Brent Headrick
25.86
lg xERA 4.10
now 2.00
3.06
WHIPlower is better
Andrés Muñoz
1.091.45
now 1.28
1.17
Brent Headrick
1.091.45
now 1.37
1.24

Volume · rest of season
Strikeoutshigher is better
Andrés Muñoz
4049
now 35
0
Brent Headrick
4049
now 29
0
Winshigher is better
Andrés Muñoz
.0004.20
now 3
0–0
Brent Headrick
.0004.20
now 3
0–0

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

If you already own them — trade angle
Buy LowAndrés Muñoz — buy low. The dip is a window to acquire.conf 0.89
BuyBrent Headrick — buy.conf 0.91
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