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Zack Kelly

Red Sox Career team 2022 to 2026
Number #76
Position RP
Bats R
Throws R
Age 31
Height 6' 3"
Weight 231 lbs
Birth Place Roanoke, VA
Born Mar 3, 1995

Key Insights

2026
One type of hitter does all the damage against him

Hitters do their damage on his fastballs: a .418 expected average against them, against .212 on his breaking balls.

206 of his fastballs thrown.
Runners on base do not change how he is hit

27.8% of the contact against Kelly with a runner in scoring position is hit hard, against 44.4% with the bases empty.

95 pitches with a runner in scoring position, 180 with the bases empty.
One side of the plate does most of the damage against him

Right-handed hitters average 83.7 mph off the bat against Kelly and left-handers 95.7.

34 tracked batted balls from right-handers, 14 from left-handers.
The contact he allows is the kind that finds grass

The quality of contact against Kelly projects a .372 average, 12th percentile.

275 pitches in 2026. 12th percentile among qualified pitchers in 2026, 472nd in MLB.
The shape of the contact off him says how he gets outs

47.9% of the contact against Kelly is on the ground and 20.8% of it is in the air.

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

Contact off Kelly's cutter leaves the bat at 89.7 mph, against 86.5 off his sinker.

124 and 48 of them thrown.

Contextual Splits

Pitch
Outcome
Batter
Situation
Single
Double
Triple
Home Run
Out
Vs All Pitchers
Player Bio Data
DOB Mar 3, 1995
Birth Place Roanoke, VA
Height 6' 3"
Weight 231 lbs LBS
Bats/Throws R/R