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Tatsuya Imai

Astros
Number #45
Position SP
Bats R
Throws R
Age 28
Height 5' 11"
Weight 176 lbs
Birth Place Tochigi, Japan
Born Sep 5, 1998

Key Insights

2026
This is the pitch he goes to when he needs the out

With two strikes Imai goes to the slider: 58.2% of his two-strike pitches, against 33.5% the rest of the time.

91 two-strike pitches in 2026.
One pitch of his runs sideways more than almost anyone's

Imai's sinker moves 18.1 inches toward the third-base side, the biggest horizontal move in his arsenal.

50 thrown, averaging 94.8 mph.
There is one pitch of his that keeps getting hit

Contact off Imai's sinker leaves the bat at 94.0 mph, against 87.2 off his slider.

50 and 118 of them thrown.
He pitches differently depending on which hand is up

Imai puts 43.8% of his pitches to right-handers in the zone and 36.5% of his pitches to left-handers.

114 pitches to right-handed hitters, 171 to left-handed hitters.
The angle he throws from is unusual, and hitters notice

Imai releases the ball from a low three-quarters slot, about 32 degrees above horizontal and 1.6 feet to the third-base side of the rubber.

282 tracked release points, averaging 5.2 feet off the ground.
He cannot find the zone often enough

Imai works off the plate, with only 39.4% of his pitches in the zone, 17th percentile.

285 pitches in 2026. 17th percentile among qualified pitchers in 2026, 445th in MLB.

Movement Profile (Induced Break)

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

Player Bio Data
DOB Sep 5, 1998
Birth Place Tochigi, Japan
Height 5' 11"
Weight 176 lbs LBS
Bats/Throws R/R