MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Griffin Canning
Griffin Canning
SD · P
Change to
Portrait of Luis Castillo
Luis Castillo
CWS · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 1–1, 2 even. Take whoever fills a bigger need.

Head-to-head
K
◀
ERA
WHIP
▶
W
SV n/a

Griffin Canning wins 1 (ERA); Luis Castillo wins 1 (WHIP); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Griffin Canning
94.6
Luis Castillo
95.2
Swinging-Strike %lg 11.0% · higher = better
Griffin Canning
11.7%
Luis Castillo
12.3%
Strikeout %lg 22.0% · higher = better
Griffin Canning
22.5%
Luis Castillo
18.9%
Chase %lg 28.5% · higher = better
Griffin Canning
27.0%
Luis Castillo
31.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Griffin Canning
44.7%
Luis Castillo
41.8%
Barrel % Allowedlg 8.0% · lower = better
Griffin Canning
8.5%
Luis Castillo
9.6%
xwOBA Allowedlg .315 · lower = better
Griffin Canning
.328
Luis Castillo
.341
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
Griffin Canning
3.328.25
lg xERA 4.10
now 7.16
4.42
Luis Castillo
3.328.25
lg xERA 4.10
now 5.53
4.70
WHIPlower is better
Griffin Canning
1.311.62
now 1.55
1.42
Luis Castillo
1.311.62
now 1.45
1.38

Volume · rest of season
Strikeoutshigher is better
Griffin Canning
4078.40
now 27
0
Luis Castillo
4078.40
now 56
0
Winshigher is better
Griffin Canning
.0002.80
now 0
0–0
Luis Castillo
.0002.80
now 2
0–0

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

If you already own them — trade angle
Hold · leans sellGriffin Canning — hold.conf 0.60
Hold · leans sellLuis Castillo — hold.conf 0.60
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