MLB Daily DeltaWeek 17 · July 17, 2026
Portrait of Blas Castaño
Blas Castaño
COL · P
Change to
Portrait of Tyron Guerrero
Tyron Guerrero
BOS · 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); Tyron Guerrero 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
Tyron Guerrero
95.8
Swinging-Strike %lg 11.0% · higher = better
Blas Castaño
9.0%
Tyron Guerrero
14.7%
Strikeout %lg 22.0% · higher = better
Blas Castaño
20.0%
Tyron Guerrero
28.7%
Chase %lg 28.5% · higher = better
Blas Castaño
28.1%
Tyron Guerrero
32.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Blas Castaño
50.0%
Tyron Guerrero
28.3%
Barrel % Allowedlg 8.0% · lower = better
Blas Castaño
10.0%
Tyron Guerrero
5.7%
xwOBA Allowedlg .315 · lower = better
Blas Castaño
.367
Tyron Guerrero
.252
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
2.487.97
lg xERA 4.10
now 4.91
3.70
Tyron Guerrero
2.487.97
lg xERA 4.10
now 6.75
3.70
WHIPlower is better
Blas Castaño
1.141.60
now 1.45
1.24
Tyron Guerrero
1.141.60
now 1.50
1.24

Volume · rest of season
Strikeoutshigher is better
Blas Castaño
4031.40
now 10
25
Tyron Guerrero
4031.40
now 9
25
Winshigher is better
Blas Castaño
.000.480
now 0
00
Tyron Guerrero
.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 & seeTyron Guerrero — hold.conf 0.50
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