MLB Daily DeltaWeek 18 · July 27, 2026
Portrait of Devin Williams
Devin Williams
NYM · P
Change to
Josh Hader
HOU · P
Change to
Who's more valuable, rest of season

Devin Williams.

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

Head-to-head
K
ERA
WHIP
W
SV

Devin Williams wins 2 categories (K, W); Josh Hader wins 1 (SV); 2 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Devin Williams
93.9
Josh Hader
95.2
Swinging-Strike %lg 11.0% · higher = better
Devin Williams
17.4%
Josh Hader
21.3%
Strikeout %lg 22.0% · higher = better
Devin Williams
28.8%
Josh Hader
42.3%
Chase %lg 28.5% · higher = better
Devin Williams
38.5%
Josh Hader
43.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Devin Williams
30.4%
Josh Hader
21.6%
Barrel % Allowedlg 8.0% · lower = better
Devin Williams
5.4%
Josh Hader
2.7%
xwOBA Allowedlg .315 · lower = better
Devin Williams
.288
Josh Hader
.177
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
Devin Williams
27.56
lg xERA 4.10
now 5.40
3.70
Josh Hader
27.56
lg xERA 4.10
now 0.00
3.70
WHIPlower is better
Devin Williams
.9001.77
now 1.55
1.24
Josh Hader
.9001.77
now 1.00
1.24

Volume · rest of season
Strikeoutshigher is better
Devin Williams
4043
now 31
31
Josh Hader
4043
now 1
14
Winshigher is better
Devin Williams
.0005.60
now 3
24
Josh Hader
.0005.60
now 0
00
Saveshigher is better
Devin Williams
.00036
now 8
59
Josh Hader
.00036
now 1
626
If you already own them — trade angle
Buy LowDevin Williams — buy low. The dip is a window to acquire.conf 0.90
Hold · wait & seeJosh Hader — hold.conf 0.50
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