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Zac Gallen

Diamondbacks
Number #23
Position SP
Bats R
Throws R
Age 31
Height 6' 2"
Weight 189 lbs
Birth Place Somerdale, NJ
Born Mar 8, 1995

Key Insights

2026
One opponent brings the best out of him

Jonah Heim has hit .000/.000/.000 against Gallen over 16 plate appearances, the least any regular opponent has managed.

0 for 16 with 0 home runs and 8 strikeouts, against a .721 OPS median across his matchups.
This matchup ends in a strikeout more often than not

Gallen has struck Jackson Merrill out 6 times in 10 plate appearances, 60% of everything between them.

6 strikeouts in 10 plate appearances.
This opponent has his number every time they meet

Ezequiel Duran has hit .600/.692/1.100 against Gallen over 13 plate appearances, more than any other hitter has managed.

6 for 10 with 1 home run and 3 strikeouts, against a .721 OPS median across his matchups.
When these two meet, the ball gets hit hard

Garrett Cooper squares Gallen up like nobody else: 107.0 mph off the bat against him, against a median of 89.3 across the hitters he has faced.

8 plate appearances with tracked contact.
He owns this opponent, and the record is not close

Josh Naylor is 0 for 13 against Gallen, a .000 average that is the worst any regular opponent has managed.

14 career plate appearances.
This opponent takes the sting out of his bat

Max Kepler gets nothing on it against Gallen: 71.7 mph off the bat, against a median of 89.3 across the hitters he has faced.

9 plate appearances with tracked contact.

Matchups

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Player Bio Data
DOB Mar 8, 1995
Birth Place Somerdale, NJ
Height 6' 2"
Weight 189 lbs LBS
Bats/Throws R/R
College/Draft North Carolina