MLB Daily DeltaWeek 19 · July 31, 2026
Portrait of Grayson Rodriguez
Grayson Rodriguez
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 22. Take whoever fills a bigger need.

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

Grayson Rodriguez wins 2 (K, W); Zac Gallen wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Grayson Rodriguez
96.1
Zac Gallen
93.4
Swinging-Strike %lg 11.0% · higher = better
Grayson Rodriguez
10.7%
Zac Gallen
8.7%
Strikeout %lg 22.0% · higher = better
Grayson Rodriguez
17.3%
Zac Gallen
13.9%
Chase %lg 28.5% · higher = better
Grayson Rodriguez
25.5%
Zac Gallen
31.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Grayson Rodriguez
52.4%
Zac Gallen
44.7%
Barrel % Allowedlg 8.0% · lower = better
Grayson Rodriguez
11.6%
Zac Gallen
11.0%
xwOBA Allowedlg .315 · lower = better
Grayson Rodriguez
.414
Zac Gallen
.383
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
Grayson Rodriguez
4.218.25
lg xERA 4.10
now 7.53
6.60
Zac Gallen
4.218.25
lg xERA 4.10
now 5.16
5.69
WHIPlower is better
Grayson Rodriguez
1.331.77
now 1.67
1.47
Zac Gallen
1.331.77
now 1.47
1.43

Volume · rest of season
Strikeoutshigher is better
Grayson Rodriguez
4056
now 14
44
Zac Gallen
4056
now 42
39
Winshigher is better
Grayson Rodriguez
.0009.40
now 2
37
Zac Gallen
.0009.40
now 3
13

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

If you already own them — trade angle
SellGrayson Rodriguez — sell.conf 0.90
SellZac Gallen — sell.conf 0.90
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