MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Brandon Pfaadt
Brandon Pfaadt
AZ · P
Change to
Portrait of Caleb Kilian
Caleb Kilian
PHI · 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

Brandon Pfaadt wins 1 (WHIP); Caleb Kilian wins 1 (ERA); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Brandon Pfaadt
93.2
Caleb Kilian
96.8
Swinging-Strike %lg 11.0% · higher = better
Brandon Pfaadt
10.6%
Caleb Kilian
13.6%
Strikeout %lg 22.0% · higher = better
Brandon Pfaadt
16.7%
Caleb Kilian
26.8%
Chase %lg 28.5% · higher = better
Brandon Pfaadt
32.1%
Caleb Kilian
32.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Brandon Pfaadt
34.9%
Caleb Kilian
34.9%
Barrel % Allowedlg 8.0% · lower = better
Brandon Pfaadt
7.2%
Caleb Kilian
8.5%
xwOBA Allowedlg .315 · lower = better
Brandon Pfaadt
.305
Caleb Kilian
.292
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
Brandon Pfaadt
2.766.40
lg xERA 4.10
now 5.59
3.84
Caleb Kilian
2.766.40
lg xERA 4.10
now 3.81
3.57
WHIPlower is better
Brandon Pfaadt
1.051.51
now 1.41
1.27
Caleb Kilian
1.051.51
now 1.15
1.32

Volume · rest of season
Strikeoutshigher is better
Brandon Pfaadt
4042
now 30
0
Caleb Kilian
4042
now 29
0
Winshigher is better
Brandon Pfaadt
.0002.80
now 0
0–0
Caleb Kilian
.0002.80
now 2
0–0

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

If you already own them — trade angle
Hold · leans buyBrandon Pfaadt — hold.conf 0.60
BuyCaleb Kilian — buy.conf 0.76
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