MLB Daily DeltaWeek 17 · July 20, 2026
Portrait of Andrés Muñoz
Andrés Muñoz
SEA · P
Change to
Portrait of Riley O'Brien
Riley O'Brien
STL · P
Change to
Who's more valuable, rest of season

Andrés Muñoz.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and wins. Riley O'Brien’s box score looks better right now, but the luck-stripped projection flips it.

Head-to-head
K
ERA
WHIP
W
SV

Andrés Muñoz wins 3 categories (K, ERA, W); Riley O'Brien wins 1 (SV); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Andrés Muñoz
99.3
Riley O'Brien
98.2
Swinging-Strike %lg 11.0% · higher = better
Andrés Muñoz
18.8%
Riley O'Brien
12.1%
Strikeout %lg 22.0% · higher = better
Andrés Muñoz
35.1%
Riley O'Brien
23.7%
Chase %lg 28.5% · higher = better
Andrés Muñoz
37.0%
Riley O'Brien
29.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Andrés Muñoz
42.7%
Riley O'Brien
38.9%
Barrel % Allowedlg 8.0% · lower = better
Andrés Muñoz
8.5%
Riley O'Brien
6.5%
xwOBA Allowedlg .315 · lower = better
Andrés Muñoz
.296
Riley O'Brien
.323
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
2.585.38
lg xERA 4.10
now 4.76
3.70
Riley O'Brien
2.585.38
lg xERA 4.10
now 3.20
3.73
WHIPlower is better
Andrés Muñoz
.9001.40
now 1.28
1.24
Riley O'Brien
.9001.40
now 0.99
1.24

Volume · rest of season
Strikeoutshigher is better
Andrés Muñoz
4040.60
now 35
30
Riley O'Brien
4040.60
now 27
22
Winshigher is better
Andrés Muñoz
1.204.80
now 3
24
Riley O'Brien
1.204.80
now 3
23
Saveshigher is better
Andrés Muñoz
2.4018.60
now 9
610
Riley O'Brien
2.4018.60
now 14
815
If you already own them — trade angle
Buy LowAndrés Muñoz — buy low. The dip is a window to acquire.conf 0.73
Hold · wait & seeRiley O'Brien — hold.conf 0.50
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