MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Blas Castaño
Blas Castaño
COL · P
Change to
Brock Stewart
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); Brock Stewart 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
Brock Stewart
95.8
Swinging-Strike %lg 11.0% · higher = better
Blas Castaño
8.9%
Brock Stewart
14.6%
Strikeout %lg 22.0% · higher = better
Blas Castaño
19.4%
Brock Stewart
23.2%
Chase %lg 28.5% · higher = better
Blas Castaño
29.1%
Brock Stewart
35.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Blas Castaño
47.1%
Brock Stewart
24.1%
Barrel % Allowedlg 8.0% · lower = better
Blas Castaño
8.6%
Brock Stewart
3.7%
xwOBA Allowedlg .315 · lower = better
Blas Castaño
.361
Brock Stewart
.237
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
26.87
lg xERA 4.10
now 4.91
3.70
Brock Stewart
26.87
lg xERA 4.10
now 0.00
3.70
WHIPlower is better
Blas Castaño
.9001.83
now 1.45
1.24
Brock Stewart
.9001.83
now 0.50
1.24

Volume · rest of season
Strikeoutshigher is better
Blas Castaño
4015.60
now 10
6
Brock Stewart
4015.60
now 3
6
Winshigher is better
Blas Castaño
.000.480
now 0
00
Brock Stewart
.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 & seeBrock Stewart — hold.conf 0.50
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