This is the pitch he goes to when he needs the out
With two strikes Kelley goes to the slider: 74% of his two-strike pitches, against 54.2% the rest of the time.
231 two-strike pitches in 2019.
One pitch of his runs sideways more than almost anyone's
Kelley's slider moves 40.2 inches toward the third-base side, the biggest horizontal move in his arsenal.
462 thrown, averaging 82.4 mph.
He fills the strike zone and makes hitters beat him
Kelley lives in the strike zone: 48.7% of his pitches are in it, 93rd percentile.
768 pitches in 2019. 93rd percentile among qualified pitchers in 2019, 53rd in MLB.
One pitch of his moves in a way hitters rarely see
Kelley's 4-seam fastball carries 17.2 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
305 thrown, averaging 91.9 mph.
He pitches around the zone once runners are on
Kelley throws 43.1% of his pitches in the zone with a runner in scoring position and 50.8% with the bases empty.
211 pitches with a runner in scoring position, 557 with the bases empty.
His pitches move in ways that fit together
Kelley works with 2 pitches: Slider and 4-Seam Fastball. The slider is 60.2% of everything he throws.
768 classified pitches in 2019.
He gets by without much velocity, and it costs him
Kelley averages 86.2 mph across his arsenal, 16th percentile in the league.
768 pitches in 2019. 16th percentile among qualified pitchers in 2019, 632nd in MLB.
When he falls behind, hitters know exactly what is coming
Behind in the count Kelley throws a fastball 46% of the time, against 28.5% when he is ahead.
176 pitches behind in the count, 260 ahead.
One type of hitter does all the damage against him
Hitters do their damage on his fastballs: a .451 expected average against them, against .386 on his breaking balls.
305 of his fastballs thrown.
The contact he allows is the kind that finds grass
The quality of contact against Kelley projects a .415 average, 11th percentile.
768 pitches in 2019. 11th percentile among qualified pitchers in 2019, 673rd in MLB.
He lives on one side of the plate
Kelley works in on right-handers: his average pitch lands 3.5 inches to that side of the middle of the plate.
768 located pitches in 2019.
His fastball is the pitch everything else is built on
Kelley's 4-seam fastball averages 91.9 mph, and has touched 95.3.
305 thrown, 39.7% of his pitches.
His ball moves more than the hitter expects it to
Kelley's stuff spins at 2,414 rpm, 79th percentile in the league.
768 pitches in 2019. 79th percentile among qualified pitchers in 2019, 162nd in MLB.
He works one part of the zone far more than the rest
Kelley lives at the bottom of the zone: his average pitch crosses at 2.28 feet, against a zone that runs 1.5 to 3.5.
768 located pitches in 2019.
He pitches differently depending on which hand is up
Kelley puts 50.2% of his pitches to right-handers in the zone and 47% of his pitches to left-handers.
402 pitches to right-handed hitters, 366 to left-handed hitters.
He releases the ball about where everyone else does
Kelley releases the ball 6.1 feet down the mound, a shorter stride than most.
768 tracked pitches in 2019.
How much of the zone he uses depends on the count
Kelley puts 60.8% of his pitches in the zone when he is behind and 46.2% when he is ahead.
176 located pitches behind, 260 ahead.
He saves one pitch for one side of the plate
Kelley throws the slider 65.4% of the time against right-handers and 54.4% against left-handers.
402 pitches to right-handers, 366 to left-handers.
One pitch of his spins more than almost anyone's
Kelley's slider spins at 2,431 rpm, the highest in his arsenal.
462 thrown in 2019.
He gets ahead early and pitches from in front all night
Kelley throws a strike on the first pitch 62.7% of the time.
204 plate appearances started in 2019.
There is one pitch of his that keeps getting hit
Contact off Kelley's 4-seam fastball leaves the bat at 90.4 mph, against 88.4 off his slider.
305 and 462 of them thrown.
The gap between his pitches is what makes them work
9.5 mph separates Kelley's 4-seam fastball from his slider, 91.9 against 82.4.
305 and 462 of them respectively.
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The numbers behind these live in Pitch Data.
Take me there
This is the pitch he goes to when he needs the out
With two strikes Kelley goes to the slider: 74% of his two-strike pitches, against 54.2% the rest of the time.
231 two-strike pitches in 2019.
When he falls behind, hitters know exactly what is coming
Behind in the count Kelley throws a fastball 46% of the time, against 28.5% when he is ahead.
176 pitches behind in the count, 260 ahead.
How much of the zone he uses depends on the count
Kelley puts 60.8% of his pitches in the zone when he is behind and 46.2% when he is ahead.
176 located pitches behind, 260 ahead.
He gets ahead early and pitches from in front all night
Kelley throws a strike on the first pitch 62.7% of the time.
204 plate appearances started in 2019.
The numbers behind these live in Pitch Data.
Take me there
One pitch of his runs sideways more than almost anyone's
Kelley's slider moves 40.2 inches toward the third-base side, the biggest horizontal move in his arsenal.
462 thrown, averaging 82.4 mph.
One pitch of his moves in a way hitters rarely see
Kelley's 4-seam fastball carries 17.2 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
305 thrown, averaging 91.9 mph.
The numbers behind these live in Pitch Data.
Take me there
He fills the strike zone and makes hitters beat him
Kelley lives in the strike zone: 48.7% of his pitches are in it, 93rd percentile.
768 pitches in 2019. 93rd percentile among qualified pitchers in 2019, 53rd in MLB.
The numbers behind these live in Matchups.
Take me there
He pitches around the zone once runners are on
Kelley throws 43.1% of his pitches in the zone with a runner in scoring position and 50.8% with the bases empty.
211 pitches with a runner in scoring position, 557 with the bases empty.
The numbers behind these live in Pitch Data.
Take me there
His pitches move in ways that fit together
Kelley works with 2 pitches: Slider and 4-Seam Fastball. The slider is 60.2% of everything he throws.
768 classified pitches in 2019.
His fastball is the pitch everything else is built on
Kelley's 4-seam fastball averages 91.9 mph, and has touched 95.3.
305 thrown, 39.7% of his pitches.
He saves one pitch for one side of the plate
Kelley throws the slider 65.4% of the time against right-handers and 54.4% against left-handers.
402 pitches to right-handers, 366 to left-handers.
One pitch of his spins more than almost anyone's
Kelley's slider spins at 2,431 rpm, the highest in his arsenal.
462 thrown in 2019.
There is one pitch of his that keeps getting hit
Contact off Kelley's 4-seam fastball leaves the bat at 90.4 mph, against 88.4 off his slider.
305 and 462 of them thrown.
The gap between his pitches is what makes them work
9.5 mph separates Kelley's 4-seam fastball from his slider, 91.9 against 82.4.
305 and 462 of them respectively.
The numbers behind these live in Pitch Data.
Take me there
He gets by without much velocity, and it costs him
Kelley averages 86.2 mph across his arsenal, 16th percentile in the league.
768 pitches in 2019. 16th percentile among qualified pitchers in 2019, 632nd in MLB.
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 fastballs: a .451 expected average against them, against .386 on his breaking balls.
305 of his fastballs 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 Kelley projects a .415 average, 11th percentile.
768 pitches in 2019. 11th percentile among qualified pitchers in 2019, 673rd in MLB.
The numbers behind these live in Pitch Data.
Take me there
He lives on one side of the plate
Kelley works in on right-handers: his average pitch lands 3.5 inches to that side of the middle of the plate.
768 located pitches in 2019.
He works one part of the zone far more than the rest
Kelley lives at the bottom of the zone: his average pitch crosses at 2.28 feet, against a zone that runs 1.5 to 3.5.
768 located pitches in 2019.
The numbers behind these live in Pitch Data.
Take me there
His ball moves more than the hitter expects it to
Kelley's stuff spins at 2,414 rpm, 79th percentile in the league.
768 pitches in 2019. 79th percentile among qualified pitchers in 2019, 162nd in MLB.
The numbers behind these live in Matchups.
Take me there
He pitches differently depending on which hand is up
Kelley puts 50.2% of his pitches to right-handers in the zone and 47% of his pitches to left-handers.
402 pitches to right-handed hitters, 366 to left-handed hitters.
The numbers behind these live in Pitch Data.
Take me there
He releases the ball about where everyone else does
Kelley releases the ball 6.1 feet down the mound, a shorter stride than most.
768 tracked pitches in 2019.
Nationals
Career team 2016–2018