MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Jack Kochanowicz
Jack Kochanowicz
LAA · 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

Jack Kochanowicz 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
Jack Kochanowicz
96.2
Zac Gallen
93.4
Swinging-Strike %lg 11.0% · higher = better
Jack Kochanowicz
10.7%
Zac Gallen
8.8%
Strikeout %lg 22.0% · higher = better
Jack Kochanowicz
15.9%
Zac Gallen
13.6%
Chase %lg 28.5% · higher = better
Jack Kochanowicz
25.6%
Zac Gallen
31.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Kochanowicz
42.8%
Zac Gallen
44.1%
Barrel % Allowedlg 8.0% · lower = better
Jack Kochanowicz
7.2%
Zac Gallen
10.8%
xwOBA Allowedlg .315 · lower = better
Jack Kochanowicz
.358
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
Jack Kochanowicz
4.826
lg xERA 4.10
now 5.23
5.08
Zac Gallen
4.826
lg xERA 4.10
now 5.16
5.74
WHIPlower is better
Jack Kochanowicz
1.371.59
now 1.48
1.52
Zac Gallen
1.371.59
now 1.47
1.44

Volume · rest of season
Strikeoutshigher is better
Jack Kochanowicz
4064.40
now 46
0
Zac Gallen
4064.40
now 42
0
Winshigher is better
Jack Kochanowicz
.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
SellJack Kochanowicz — sell.conf 0.90
SellZac Gallen — sell.conf 0.90
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