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Greg Weissert

Red Sox
Number #57
Position RP
Bats R
Throws R
Age 31
Height 6' 2"
Weight 235 lbs
Birth Place Bay Shore, NY
Born Apr 2, 1995

Key Insights

2026
The angle he throws from is unusual, and hitters notice

Weissert releases the ball from a sidearm slot, about 12 degrees above horizontal and 3.0 feet to the third-base side of the rubber.

283 tracked release points, averaging 4.9 feet off the ground.
One type of hitter does all the damage against him

Hitters do their damage on his breaking balls: a .480 expected average against them, against .313 on his fastballs.

85 of his breaking balls thrown.
One pitch of his runs sideways more than almost anyone's

Weissert's sweeper moves 20.0 inches toward the first-base side, the biggest horizontal move in his arsenal.

59 thrown, averaging 81.5 mph.
This is the pitch he goes to when he needs the out

With two strikes Weissert goes to the 4-seam fastball: 37.6% of his two-strike pitches, against 21.2% the rest of the time.

85 two-strike pitches in 2026.
One pitch of his spins more than almost anyone's

Weissert's sweeper spins at 2,900 rpm, the highest in his arsenal.

59 thrown in 2026.
He gets ahead early and pitches from in front all night

Weissert throws a strike on the first pitch 66.2% of the time.

74 plate appearances started in 2026.

Movement Profile (Induced Break)

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

Player Bio Data
DOB Apr 2, 1995
Birth Place Bay Shore, NY
Height 6' 2"
Weight 235 lbs LBS
Bats/Throws R/R