MLB Daily DeltaWeek 25 · September 11, 2026
Portrait of Blas Castaño
Blas Castaño
COL · P
Change to
Portrait of Seth Halvorsen
Seth Halvorsen
LAD · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 00, 4 even. Take whoever fills a bigger need.

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

Blas Castaño wins 0 (none); Seth Halvorsen wins 0 (none); 4 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Blas Castaño
94.6
Seth Halvorsen
98.9
Swinging-Strike %lg 11.0% · higher = better
Blas Castaño
8.9%
Seth Halvorsen
10.2%
Strikeout %lg 22.0% · higher = better
Blas Castaño
19.4%
Seth Halvorsen
15.3%
Chase %lg 28.5% · higher = better
Blas Castaño
29.1%
Seth Halvorsen
27.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Blas Castaño
47.1%
Seth Halvorsen
37.9%
Barrel % Allowedlg 8.0% · lower = better
Blas Castaño
8.6%
Seth Halvorsen
6.9%
xwOBA Allowedlg .315 · lower = better
Blas Castaño
.361
Seth Halvorsen
.381
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
4018.60
now 10
6
Seth Halvorsen
4018.60
now 13
6
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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