MLB Daily DeltaWeek 18 · July 23, 2026
Josh Hader
HOU · P
Change to
Portrait of Mason Miller
Mason Miller
SD · P
Change to
Who's more valuable, rest of season

Mason Miller.

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

Head-to-head
K
ERA
WHIP
W
SV

Mason Miller wins 4 categories (K, ERA, WHIP, W); Josh Hader wins 1 (SV).

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Josh Hader
95.1
Mason Miller
101.3
Swinging-Strike %lg 11.0% · higher = better
Josh Hader
20.8%
Mason Miller
22.5%
Strikeout %lg 22.0% · higher = better
Josh Hader
39.7%
Mason Miller
48.8%
Chase %lg 28.5% · higher = better
Josh Hader
42.8%
Mason Miller
37.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Josh Hader
22.2%
Mason Miller
22.7%
Barrel % Allowedlg 8.0% · lower = better
Josh Hader
2.8%
Mason Miller
3.0%
xwOBA Allowedlg .315 · lower = better
Josh Hader
.189
Mason Miller
.183
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
Josh Hader
25.18
lg xERA 4.10
now 0.00
3.70
Mason Miller
25.18
lg xERA 4.10
now 0.72
3.60
WHIPlower is better
Josh Hader
.9001.40
now 1.00
1.24
Mason Miller
.9001.40
now 0.84
1.23

Volume · rest of season
Strikeoutshigher is better
Josh Hader
4068.20
now 1
16
Mason Miller
4068.20
now 49
36
Winshigher is better
Josh Hader
.0001.48
now 0
00
Mason Miller
.0001.48
now 1
11
Saveshigher is better
Josh Hader
.00038.80
now 1
628
Mason Miller
.00038.80
now 17
1018
If you already own them — trade angle
Hold · wait & seeJosh Hader — hold.conf 0.50
Hold · wait & seeMason Miller — hold.conf 0.50
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