MLB Daily DeltaWeek 27 · September 27, 2026
Brandon Williamson
CIN · P
Change to
Portrait of Zac Gallen
Zac Gallen
AZ · 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 Williamson wins 1 (ERA); Zac Gallen 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
Brandon Williamson
92.8
Zac Gallen
93.4
Swinging-Strike %lg 11.0% · higher = better
Brandon Williamson
10.6%
Zac Gallen
8.8%
Strikeout %lg 22.0% · higher = better
Brandon Williamson
15.3%
Zac Gallen
13.6%
Chase %lg 28.5% · higher = better
Brandon Williamson
24.8%
Zac Gallen
31.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Brandon Williamson
41.7%
Zac Gallen
44.1%
Barrel % Allowedlg 8.0% · lower = better
Brandon Williamson
9.3%
Zac Gallen
10.8%
xwOBA Allowedlg .315 · lower = better
Brandon Williamson
.365
Zac Gallen
.384
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 Williamson
4.786.49
lg xERA 4.10
now 6.11
5.25
Zac Gallen
4.786.49
lg xERA 4.10
now 5.16
5.74
WHIPlower is better
Brandon Williamson
1.361.72
now 1.64
1.52
Zac Gallen
1.361.72
now 1.47
1.44

Volume · rest of season
Strikeoutshigher is better
Brandon Williamson
4058.80
now 19
0
Zac Gallen
4058.80
now 42
0
Winshigher is better
Brandon Williamson
.0004.20
now 2
0–0
Zac Gallen
.0004.20
now 3
0–0

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

If you already own them — trade angle
Sell HighBrandon Williamson — sell high. His value is peaking; good time to trade him.conf 0.95
SellZac Gallen — sell.conf 0.90
Tweet