MLB Daily DeltaWeek 18 · July 24, 2026
Portrait of Aaron Nola
Aaron Nola
PHI · P
Change to
Portrait of Luis Castillo
Luis Castillo
SEA · P
Change to
Who's more valuable, rest of season

Aaron Nola.

He projects to help you in more roto categories the rest of the way — strikeouts and ERA.

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

Aaron Nola wins 2 categories (K, ERA); Luis Castillo wins 0 (none); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Aaron Nola
92.2
Luis Castillo
95.3
Swinging-Strike %lg 11.0% · higher = better
Aaron Nola
12.7%
Luis Castillo
12.4%
Strikeout %lg 22.0% · higher = better
Aaron Nola
23.6%
Luis Castillo
20.1%
Chase %lg 28.5% · higher = better
Aaron Nola
32.3%
Luis Castillo
32.8%
Hard-Hit % Allowedlg 40.0% · lower = better
Aaron Nola
40.5%
Luis Castillo
41.1%
Barrel % Allowedlg 8.0% · lower = better
Aaron Nola
10.4%
Luis Castillo
9.4%
xwOBA Allowedlg .315 · lower = better
Aaron Nola
.320
Luis Castillo
.323
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
Aaron Nola
3.726.07
lg xERA 4.10
now 5.55
4.24
Luis Castillo
3.726.07
lg xERA 4.10
now 5.53
4.29
WHIPlower is better
Aaron Nola
1.251.52
now 1.39
1.32
Luis Castillo
1.251.52
now 1.45
1.32

Volume · rest of season
Strikeoutshigher is better
Aaron Nola
48.4069.60
now 64
55
Luis Castillo
48.4069.60
now 56
54
Winshigher is better
Aaron Nola
.2003.80
now 3
23
Luis Castillo
.2003.80
now 2
12

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

If you already own them — trade angle
Hold · leans sellAaron Nola — hold.conf 0.60
SellLuis Castillo — sell.conf 0.64
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