MLB Daily DeltaWeek 18 · July 24, 2026
Portrait of Blas Castaño
Blas Castaño
COL · P
Change to
Portrait of Paul Blackburn
Paul Blackburn
NYY · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22. Take whoever fills a bigger need.

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

Blas Castaño wins 2 (K, WHIP); Paul Blackburn wins 2 (ERA, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Blas Castaño
94.5
Paul Blackburn
94.6
Swinging-Strike %lg 11.0% · higher = better
Blas Castaño
9.0%
Paul Blackburn
9.9%
Strikeout %lg 22.0% · higher = better
Blas Castaño
20.0%
Paul Blackburn
19.5%
Chase %lg 28.5% · higher = better
Blas Castaño
28.1%
Paul Blackburn
26.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Blas Castaño
50.0%
Paul Blackburn
32.0%
Barrel % Allowedlg 8.0% · lower = better
Blas Castaño
10.0%
Paul Blackburn
6.7%
xwOBA Allowedlg .315 · lower = better
Blas Castaño
.367
Paul Blackburn
.291
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
2.705.54
lg xERA 4.10
now 4.91
3.70
Paul Blackburn
2.705.54
lg xERA 4.10
now 3.33
3.51
WHIPlower is better
Blas Castaño
1.161.53
now 1.45
1.24
Paul Blackburn
1.161.53
now 1.44
1.32

Volume · rest of season
Strikeoutshigher is better
Blas Castaño
4028.60
now 10
23
Paul Blackburn
4028.60
now 16
14
Winshigher is better
Blas Castaño
.0004.20
now 0
00
Paul Blackburn
.0004.20
now 2
13

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 HighPaul Blackburn — sell high. His value is peaking; good time to trade him.conf 0.95
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