MLB Daily DeltaWeek 15 · July 4, 2026
Portrait of Blas Castaño
Blas Castaño
COL · P
Change to
Portrait of Seth Halvorsen
Seth Halvorsen
COL · P
Change to
Who's more valuable, rest of season

Blas Castaño.

He projects to help you in more roto categories the rest of the way — strikeouts. Seth Halvorsen’s box score looks better right now, but the luck-stripped projection flips it.

Head-to-head
K
ERA
WHIP
W
SV n/a

Blas Castaño wins 1 categories (K); Seth Halvorsen wins 0 (none); 3 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Blas Castaño
94.5
Seth Halvorsen
98.8
Swinging-Strike %lg 11.0% · higher = better
Blas Castaño
9.0%
Seth Halvorsen
10.9%
Strikeout %lg 22.0% · higher = better
Blas Castaño
20.0%
Seth Halvorsen
17.7%
Chase %lg 28.5% · higher = better
Blas Castaño
28.1%
Seth Halvorsen
26.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Blas Castaño
50.0%
Seth Halvorsen
39.1%
Barrel % Allowedlg 8.0% · lower = better
Blas Castaño
10.0%
Seth Halvorsen
6.3%
xwOBA Allowedlg .315 · lower = better
Blas Castaño
.368
Seth Halvorsen
.395
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
2.125.71
lg xERA 4.10
now 4.91
3.70
Seth Halvorsen
2.125.71
lg xERA 4.10
now 2.92
3.70
WHIPlower is better
Blas Castaño
1.121.66
now 1.45
1.24
Seth Halvorsen
1.121.66
now 1.54
1.24

Volume · rest of season
Strikeoutshigher is better
Blas Castaño
4038
now 10
30
Seth Halvorsen
4038
now 13
29
Winshigher is better
Blas Castaño
.000.480
now 0
00
Seth Halvorsen
.000.480
now 0
00

SV — not applicable. Both pitch out of the rotation.

If you already own them — trade angle
Hold · wait & seeBlas Castaño — hold.conf 0.50
Hold · wait & seeSeth Halvorsen — hold.conf 0.50
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