MLB Daily DeltaWeek 13 · June 22, 2026
Portrait of Luis Castillo
Luis Castillo
SEA · P
Change to
Matt Waldron
SD · P
Change to
Who's more valuable, rest of season

Matt Waldron.

He projects to help you in more roto categories the rest of the way — ERA and WHIP. Luis Castillo’s box score looks better right now, but the luck-stripped projection flips it.

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

Matt Waldron wins 2 categories (ERA, WHIP); Luis Castillo wins 1 (K); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Luis Castillo
95.2
Matt Waldron
91.9
Swinging-Strike %lg 11.0% · higher = better
Luis Castillo
13.2%
Matt Waldron
8.8%
Strikeout %lg 22.0% · higher = better
Luis Castillo
21.8%
Matt Waldron
20.0%
Chase %lg 28.5% · higher = better
Luis Castillo
32.0%
Matt Waldron
31.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Luis Castillo
44.7%
Matt Waldron
39.2%
Barrel % Allowedlg 8.0% · lower = better
Luis Castillo
9.7%
Matt Waldron
7.6%
xwOBA Allowedlg .315 · lower = better
Luis Castillo
.333
Matt Waldron
.306
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
Luis Castillo
2.338.25
lg xERA 4.10
now 5.53
4.44
Matt Waldron
2.338.25
lg xERA 4.10
now 8.49
4.09
WHIPlower is better
Luis Castillo
1.141.87
now 1.45
1.34
Matt Waldron
1.141.87
now 1.71
1.30

Volume · rest of season
Strikeoutshigher is better
Luis Castillo
40110.20
now 56
85
Matt Waldron
40110.20
now 22
60
Winshigher is better
Luis Castillo
.0005.20
now 2
24
Matt Waldron
.0005.20
now 1
24

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

If you already own them — trade angle
Hold · leans sellLuis Castillo — hold.conf 0.60
Buy LowMatt Waldron — buy low. The dip is a window to acquire.conf 0.90
Tweet