MLB Daily DeltaWeek 17 · July 19, 2026
Cionel Pérez
NYM · 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 saves.

Head-to-head
K
ERA
WHIP
W
SV

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

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Cionel Pérez
96.7
Mason Miller
101.3
Swinging-Strike %lg 11.0% · higher = better
Cionel Pérez
10.6%
Mason Miller
22.5%
Strikeout %lg 22.0% · higher = better
Cionel Pérez
20.1%
Mason Miller
48.4%
Chase %lg 28.5% · higher = better
Cionel Pérez
30.3%
Mason Miller
37.8%
Hard-Hit % Allowedlg 40.0% · lower = better
Cionel Pérez
51.4%
Mason Miller
23.1%
Barrel % Allowedlg 8.0% · lower = better
Cionel Pérez
13.5%
Mason Miller
3.1%
xwOBA Allowedlg .315 · lower = better
Cionel Pérez
.366
Mason Miller
.178
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
Cionel Pérez
27.86
lg xERA 4.10
now 5.82
3.70
Mason Miller
27.86
lg xERA 4.10
now 0.72
3.59
WHIPlower is better
Cionel Pérez
.9001.89
now 1.59
1.24
Mason Miller
.9001.89
now 0.84
1.23

Volume · rest of season
Strikeoutshigher is better
Cionel Pérez
4064.60
now 10
11
Mason Miller
4064.60
now 49
38
Winshigher is better
Cionel Pérez
.2003.80
now 2
13
Mason Miller
.2003.80
now 1
11
Saveshigher is better
Cionel Pérez
.00026.60
now 0
0
Mason Miller
.00026.60
now 17
1019
If you already own them — trade angle
Hold · wait & seeCionel Pérez — hold.conf 0.50
Hold · wait & seeMason Miller — hold.conf 0.50
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