MLB Daily DeltaWeek 27 · September 30, 2026
Portrait of Blas Castaño
Blas Castaño
COL · P
Change to
Kenley Jansen
DET · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 0–0, 4 even. Take whoever fills a bigger need.

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

Blas Castaño wins 0 (none); Kenley Jansen 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
94.5
Kenley Jansen
93.9
Swinging-Strike %lg 11.0% · higher = better
Blas Castaño
8.7%
Kenley Jansen
13.0%
Strikeout %lg 22.0% · higher = better
Blas Castaño
18.9%
Kenley Jansen
28.3%
Chase %lg 28.5% · higher = better
Blas Castaño
28.7%
Kenley Jansen
30.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Blas Castaño
48.1%
Kenley Jansen
38.1%
Barrel % Allowedlg 8.0% · lower = better
Blas Castaño
8.9%
Kenley Jansen
9.5%
xwOBA Allowedlg .315 · lower = better
Blas Castaño
.367
Kenley Jansen
.293
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
3.225.39
lg xERA 4.10
now 4.91
3.70
Kenley Jansen
3.225.39
lg xERA 4.10
now 4.80
3.70
WHIPlower is better
Blas Castaño
1.101.55
now 1.45
1.24
Kenley Jansen
1.101.55
now 1.20
1.24

Volume · rest of season
Strikeoutshigher is better
Blas Castaño
4026.60
now 10
0
Kenley Jansen
4026.60
now 19
0
Winshigher is better
Blas Castaño
.0001.48
now 0
0–0
Kenley Jansen
.0001.48
now 1
0–0

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

If you already own them — trade angle
Hold · wait & seeBlas Castaño — hold.conf 0.50
Sell HighKenley Jansen — sell high. His value is peaking; good time to trade him.conf 0.71
Tweet