Loading games...

Zac Gallen

Diamondbacks
Number #23
Position SP
Bats R
Throws R
Age 31
Height 6' 2"
Weight 189 lbs
Birth Place Somerdale, NJ
Born Aug 3, 1995

Key Insights

2026
One type of hitter does all the damage against him

Hitters do their damage on his fastballs: a .382 expected average against them, against .235 on his offspeed pitches.

331 of his fastballs thrown.
He works one part of the zone far more than the rest

Gallen lives at the bottom of the zone: his average pitch crosses at 1.93 feet, against a zone that runs 1.5 to 3.5.

1780 located pitches in 2026.
One pitch of his moves in a way hitters rarely see

Gallen's 4-seam fastball carries 16.1 inches of ride against a spinless ball, the biggest vertical move in his arsenal.

626 thrown, averaging 93.4 mph.
He saves one pitch for one side of the plate

Gallen throws the slider 35.8% of the time against right-handers and 11.7% against left-handers.

838 pitches to right-handers, 942 to left-handers.
He cannot find the zone often enough

Gallen works off the plate, with only 39.2% of his pitches in the zone, 15th percentile.

770 pitches in 2026. 15th percentile among qualified pitchers in 2026, 454th in MLB.
The angle he throws from is unusual, and hitters notice

Gallen releases the ball from a low three-quarters slot, about 32 degrees above horizontal and 2.4 feet to the third-base side of the rubber.

1780 tracked release points, averaging 5.8 feet off the ground.

Movement Profile (Induced Break)

Catcher's Perspective • Pitch movement relative to a spinless ball

Player Bio Data
DOB Aug 3, 1995
Birth Place Somerdale, NJ
Height 6' 2"
Weight 189 lbs LBS
Bats/Throws R/R
College/Draft North Carolina