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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
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.
The home runs are what is undoing his season

Weissert has given up 4 tracked home runs, 3 of them to left field, the longest 431 feet.

4 tracked home runs allowed in 2026.
The shape of the contact off him says how he gets outs

45.8% of the contact against Weissert is on the ground and 27.1% of it is in the air.

48 tracked batted balls allowed.
There is one pitch of his that keeps getting hit

Contact off Weissert's sinker leaves the bat at 88.6 mph, against 85.1 off his sweeper.

103 and 59 of them thrown.
Hitters tend to hit him to one part of the field

50% of the balls put in play against Weissert have gone to centre field.

25 of 50 located batted balls allowed.
Hitters cannot square him up, the contact is weak

Contact against Weissert is weak: 87.1 mph off the bat on average, 68th percentile.

283 pitches in 2026. 68th percentile among qualified pitchers in 2026, 170th in MLB.

Contextual Splits

Pitch
Outcome
Batter
Situation
Single
Double
Triple
Home Run
Out
Vs All Pitchers
Player Bio Data
DOB Apr 2, 1995
Birth Place Bay Shore, NY
Height 6' 2"
Weight 235 lbs LBS
Bats/Throws R/R