Both sides hit him about the same
33.3% of the contact right-handers make against Kelly is hit hard, against 53.6% of what left-handers make.
233 pitches to right-handed hitters, 346 to left-handed hitters.
One type of hitter does all the damage against him
Hitters do their damage on his offspeed pitches: a .427 expected average against them, against .307 on his breaking balls.
162 of his offspeed pitches thrown.
The contact he allows is the kind that finds grass
The quality of contact against Kelly projects a .385 average, 8th percentile.
579 pitches in 2026. 8th percentile among qualified pitchers in 2026, 495th in MLB.
There is one pitch of his that keeps getting hit
Contact off Kelly's 4-seam fastball leaves the bat at 95.3 mph, against 83.6 off his slider.
140 and 76 of them thrown.
Runners on base do not change how he is hit
35% of the contact against Kelly with a runner in scoring position is hit hard, against 47.9% with the bases empty.
134 pitches with a runner in scoring position, 445 with the bases empty.
He cannot find the zone often enough
Kelly works off the plate, with only 37.7% of his pitches in the zone, 10th percentile.
579 pitches in 2026. 10th percentile among qualified pitchers in 2026, 484th in MLB.
When hitters connect off him, they hit it hard
Hitters average 90.5 mph off the bat against Kelly, 21st percentile.
579 pitches in 2026. 21st percentile among qualified pitchers in 2026, 427th in MLB.
One side of the plate does most of the damage against him
Right-handed hitters average 88.4 mph off the bat against Kelly and left-handers 91.9.
45 tracked batted balls from right-handers, 69 from left-handers.
Too much of the contact against him is loud
45.6% of the contact Kelly gives up is hit hard, 23rd percentile.
579 pitches in 2026. 23rd percentile among qualified pitchers in 2026, 413th in MLB.
Hitters tend to hit him to one part of the field
41.2% of the balls put in play against Kelly have gone to centre field.
47 of 114 located batted balls allowed.
He gets by without much velocity, and it costs him
Kelly averages 89.0 mph across his arsenal, 39th percentile in the league.
579 pitches in 2026. 39th percentile among qualified pitchers in 2026, 330th in MLB.
Show more
The numbers behind these live in Matchups.
Take me there
Both sides hit him about the same
33.3% of the contact right-handers make against Kelly is hit hard, against 53.6% of what left-handers make.
233 pitches to right-handed hitters, 346 to left-handed hitters.
The numbers behind these live in Pitch Data.
Take me there
One type of hitter does all the damage against him
Hitters do their damage on his offspeed pitches: a .427 expected average against them, against .307 on his breaking balls.
162 of his offspeed pitches thrown.
The numbers behind these live in Spray Chart.
Take me there
The contact he allows is the kind that finds grass
The quality of contact against Kelly projects a .385 average, 8th percentile.
579 pitches in 2026. 8th percentile among qualified pitchers in 2026, 495th in MLB.
When hitters connect off him, they hit it hard
Hitters average 90.5 mph off the bat against Kelly, 21st percentile.
579 pitches in 2026. 21st percentile among qualified pitchers in 2026, 427th in MLB.
Too much of the contact against him is loud
45.6% of the contact Kelly gives up is hit hard, 23rd percentile.
579 pitches in 2026. 23rd percentile among qualified pitchers in 2026, 413th in MLB.
The numbers behind these live in Pitch Data.
Take me there
There is one pitch of his that keeps getting hit
Contact off Kelly's 4-seam fastball leaves the bat at 95.3 mph, against 83.6 off his slider.
140 and 76 of them thrown.
The numbers behind these live in Matchups.
Take me there
Runners on base do not change how he is hit
35% of the contact against Kelly with a runner in scoring position is hit hard, against 47.9% with the bases empty.
134 pitches with a runner in scoring position, 445 with the bases empty.
The numbers behind these live in Pitch Data.
Take me there
He cannot find the zone often enough
Kelly works off the plate, with only 37.7% of his pitches in the zone, 10th percentile.
579 pitches in 2026. 10th percentile among qualified pitchers in 2026, 484th in MLB.
The numbers behind these live in Pitch Data.
Take me there
One side of the plate does most of the damage against him
Right-handed hitters average 88.4 mph off the bat against Kelly and left-handers 91.9.
45 tracked batted balls from right-handers, 69 from left-handers.
Hitters tend to hit him to one part of the field
41.2% of the balls put in play against Kelly have gone to centre field.
47 of 114 located batted balls allowed.
The numbers behind these live in Pitch Data.
Take me there
He gets by without much velocity, and it costs him
Kelly averages 89.0 mph across his arsenal, 39th percentile in the league.
579 pitches in 2026. 39th percentile among qualified pitchers in 2026, 330th in MLB.
Diamondbacks