MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Luis Castillo
Luis Castillo
CWS · P
Change to
Portrait of Ryne Nelson
Ryne Nelson
AZ · P
Change to
Who's more valuable, rest of season

Luis Castillo.

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

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

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

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Luis Castillo
95.3
Ryne Nelson
96.3
Swinging-Strike %lg 11.0% · higher = better
Luis Castillo
12.6%
Ryne Nelson
11.4%
Strikeout %lg 22.0% · higher = better
Luis Castillo
19.2%
Ryne Nelson
17.5%
Chase %lg 28.5% · higher = better
Luis Castillo
31.8%
Ryne Nelson
34.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Luis Castillo
42.0%
Ryne Nelson
43.4%
Barrel % Allowedlg 8.0% · lower = better
Luis Castillo
9.5%
Ryne Nelson
10.2%
xwOBA Allowedlg .315 · lower = better
Luis Castillo
.339
Ryne Nelson
.349
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
4.275.89
lg xERA 4.10
now 5.53
4.63
Ryne Nelson
4.275.89
lg xERA 4.10
now 4.82
4.85
WHIPlower is better
Luis Castillo
1.091.55
now 1.45
1.36
Ryne Nelson
1.091.55
now 1.19
1.28

Volume · rest of season
Strikeoutshigher is better
Luis Castillo
4074
now 56
13
Ryne Nelson
4074
now 52
11
Winshigher is better
Luis Castillo
.0002.80
now 2
01
Ryne Nelson
.0002.80
now 2
01

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

If you already own them — trade angle
SellLuis Castillo — sell.conf 0.79
SellRyne Nelson — sell.conf 0.90
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