MLB Daily DeltaWeek 18 · July 28, 2026
Portrait of Blas Castaño
Blas Castaño
COL · 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, wins, and saves.

Head-to-head
K
ERA
WHIP
W
SV

Mason Miller wins 5 categories (K, ERA, WHIP, W, SV); Blas Castaño wins 0 (none).

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Blas Castaño
94.5
Mason Miller
101.4
Swinging-Strike %lg 11.0% · higher = better
Blas Castaño
9.0%
Mason Miller
22.4%
Strikeout %lg 22.0% · higher = better
Blas Castaño
20.0%
Mason Miller
48.2%
Chase %lg 28.5% · higher = better
Blas Castaño
28.1%
Mason Miller
37.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Blas Castaño
50.0%
Mason Miller
25.7%
Barrel % Allowedlg 8.0% · lower = better
Blas Castaño
10.0%
Mason Miller
2.9%
xwOBA Allowedlg .315 · lower = better
Blas Castaño
.367
Mason Miller
.180
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
Blas Castaño
26.59
lg xERA 4.10
now 4.91
3.70
Mason Miller
26.59
lg xERA 4.10
now 0.72
3.59
WHIPlower is better
Blas Castaño
.9001.69
now 1.45
1.24
Mason Miller
.9001.69
now 0.84
1.23

Volume · rest of season
Strikeoutshigher is better
Blas Castaño
4064.60
now 10
21
Mason Miller
4064.60
now 49
33
Winshigher is better
Blas Castaño
.0001.48
now 0
00
Mason Miller
.0001.48
now 1
01
Saveshigher is better
Blas Castaño
.00023.80
now 0
0
Mason Miller
.00023.80
now 17
916
If you already own them — trade angle
Hold · wait & seeBlas Castaño — hold.conf 0.50
Hold · wait & seeMason Miller — hold.conf 0.50
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