This is the pitch he goes to when he needs the out
With two strikes Rocker goes to the slider: 55.8% of his two-strike pitches, against 31.4% the rest of the time.
672 two-strike pitches in 2026.
One type of hitter does all the damage against him
Hitters do their damage on his offspeed pitches: a .443 expected average against them, against .331 on his breaking balls.
55 of his offspeed pitches thrown.
There is one pitch of his that keeps getting hit
Contact off Rocker's changeup leaves the bat at 94.1 mph, against 86.6 off his slider.
110 and 947 of them thrown.
One pitch of his runs sideways more than almost anyone's
Rocker's sinker moves 16.1 inches toward the third-base side, the biggest horizontal move in his arsenal.
742 thrown, averaging 94.4 mph.
When he falls behind, hitters know exactly what is coming
Behind in the count Rocker throws a fastball 72.5% of the time, against 39.6% when he is ahead.
738 pitches behind in the count, 672 ahead.
He works one part of the zone far more than the rest
Rocker lives at the bottom of the zone: his average pitch crosses at 2.08 feet, against a zone that runs 1.5 to 3.5.
2496 located pitches in 2026.
The angle he throws from is unusual, and hitters notice
Rocker releases the ball from a low three-quarters slot, about 32 degrees above horizontal and 2.0 feet to the third-base side of the rubber.
2496 tracked release points, averaging 5.8 feet off the ground.
He pitches around the zone once runners are on
Rocker throws 38.4% of his pitches in the zone with a runner in scoring position and 43.4% with the bases empty.
159 pitches with a runner in scoring position, 500 with the bases empty.
His velocity drains away as the outing goes on
Rocker's fastball averages 93.7 mph in his first 25 pitches of a start and 92.4 past his 75th.
447 early fastballs, 179 late ones.
He saves one pitch for one side of the plate
Rocker throws the sinker 40.3% of the time against right-handers and 22.3% against left-handers.
1036 pitches to right-handers, 1460 to left-handers.
Too much of the contact against him is loud
47% of the contact Rocker gives up is hit hard, 18th percentile.
659 pitches in 2026. 18th percentile among qualified pitchers in 2026, 440th in MLB.
His ball is straighter than it should be
Rocker's stuff spins at 2,107 rpm, 21st percentile in the league.
659 pitches in 2026. 21st percentile among qualified pitchers in 2026, 422nd in MLB.
One pitch of his moves in a way hitters rarely see
Rocker's 4-seam fastball carries 11.7 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
345 thrown, averaging 94.5 mph.
How much of the zone he uses depends on the count
Rocker puts 57.2% of his pitches in the zone when he is behind and 36.6% when he is ahead.
738 located pitches behind, 672 ahead.
He throws strikes to one type of hitter and not the other
Rocker lands 49.2% of his fastballs in the zone and only 33.1% of his breaking balls.
368 of his fastballs, 236 of his breaking balls.
His pitches move in ways that fit together
Rocker works with 4 pitches: Slider, Sinker, 4-Seam Fastball and Cutter. The slider is 37.9% of everything he throws.
2496 classified pitches in 2026.
When hitters connect off him, they hit it hard
Hitters average 90.4 mph off the bat against Rocker, 22nd percentile.
659 pitches in 2026. 22nd percentile among qualified pitchers in 2026, 418th in MLB.
He gets so far down the mound the ball arrives early
Rocker releases the ball 6.8 feet down the mound, so the ball arrives sooner than the radar gun suggests.
2368 tracked pitches in 2026.
The gap between his pitches is what makes them work
11.3 mph separates Rocker's 4-seam fastball from his slider, 94.5 against 83.1.
345 and 947 of them respectively.
His fastball is the pitch everything else is built on
Rocker's sinker averages 94.4 mph, and has touched 97.3.
742 thrown, 29.7% of his pitches.
He falls behind hitters far too often
Rocker throws a strike on the first pitch 57.2% of the time.
642 plate appearances started in 2026.
The contact he allows is the kind that finds grass
The quality of contact against Rocker projects a .346 average, 31st percentile.
659 pitches in 2026. 31st percentile among qualified pitchers in 2026, 370th in MLB.
One pitch exists only to make the hitter think
Rocker has thrown 110 changeups this season, 4.4% of his pitches, at 89.2 mph: a look rather than a weapon.
2496 classified pitches in 2026.
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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 Rocker goes to the slider: 55.8% of his two-strike pitches, against 31.4% the rest of the time.
672 two-strike pitches in 2026.
When he falls behind, hitters know exactly what is coming
Behind in the count Rocker throws a fastball 72.5% of the time, against 39.6% when he is ahead.
738 pitches behind in the count, 672 ahead.
How much of the zone he uses depends on the count
Rocker puts 57.2% of his pitches in the zone when he is behind and 36.6% when he is ahead.
738 located pitches behind, 672 ahead.
He falls behind hitters far too often
Rocker throws a strike on the first pitch 57.2% of the time.
642 plate appearances started in 2026.
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 .443 expected average against them, against .331 on his breaking balls.
55 of his offspeed pitches thrown.
He throws strikes to one type of hitter and not the other
Rocker lands 49.2% of his fastballs in the zone and only 33.1% of his breaking balls.
368 of his fastballs, 236 of his breaking balls.
The numbers behind these live in Pitch Data.
Take me there
There is one pitch of his that keeps getting hit
Contact off Rocker's changeup leaves the bat at 94.1 mph, against 86.6 off his slider.
110 and 947 of them thrown.
He saves one pitch for one side of the plate
Rocker throws the sinker 40.3% of the time against right-handers and 22.3% against left-handers.
1036 pitches to right-handers, 1460 to left-handers.
His pitches move in ways that fit together
Rocker works with 4 pitches: Slider, Sinker, 4-Seam Fastball and Cutter. The slider is 37.9% of everything he throws.
2496 classified pitches in 2026.
The gap between his pitches is what makes them work
11.3 mph separates Rocker's 4-seam fastball from his slider, 94.5 against 83.1.
345 and 947 of them respectively.
His fastball is the pitch everything else is built on
Rocker's sinker averages 94.4 mph, and has touched 97.3.
742 thrown, 29.7% of his pitches.
One pitch exists only to make the hitter think
Rocker has thrown 110 changeups this season, 4.4% of his pitches, at 89.2 mph: a look rather than a weapon.
2496 classified pitches in 2026.
The numbers behind these live in Pitch Data.
Take me there
One pitch of his runs sideways more than almost anyone's
Rocker's sinker moves 16.1 inches toward the third-base side, the biggest horizontal move in his arsenal.
742 thrown, averaging 94.4 mph.
One pitch of his moves in a way hitters rarely see
Rocker's 4-seam fastball carries 11.7 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
345 thrown, averaging 94.5 mph.
The numbers behind these live in Pitch Data.
Take me there
He works one part of the zone far more than the rest
Rocker lives at the bottom of the zone: his average pitch crosses at 2.08 feet, against a zone that runs 1.5 to 3.5.
2496 located pitches in 2026.
The numbers behind these live in Pitch Data.
Take me there
The angle he throws from is unusual, and hitters notice
Rocker releases the ball from a low three-quarters slot, about 32 degrees above horizontal and 2.0 feet to the third-base side of the rubber.
2496 tracked release points, averaging 5.8 feet off the ground.
His velocity drains away as the outing goes on
Rocker's fastball averages 93.7 mph in his first 25 pitches of a start and 92.4 past his 75th.
447 early fastballs, 179 late ones.
He gets so far down the mound the ball arrives early
Rocker releases the ball 6.8 feet down the mound, so the ball arrives sooner than the radar gun suggests.
2368 tracked pitches in 2026.
The numbers behind these live in Matchups.
Take me there
He pitches around the zone once runners are on
Rocker throws 38.4% of his pitches in the zone with a runner in scoring position and 43.4% with the bases empty.
159 pitches with a runner in scoring position, 500 with the bases empty.
The numbers behind these live in Spray Chart.
Take me there
Too much of the contact against him is loud
47% of the contact Rocker gives up is hit hard, 18th percentile.
659 pitches in 2026. 18th percentile among qualified pitchers in 2026, 440th in MLB.
When hitters connect off him, they hit it hard
Hitters average 90.4 mph off the bat against Rocker, 22nd percentile.
659 pitches in 2026. 22nd percentile among qualified pitchers in 2026, 418th in MLB.
The contact he allows is the kind that finds grass
The quality of contact against Rocker projects a .346 average, 31st percentile.
659 pitches in 2026. 31st percentile among qualified pitchers in 2026, 370th in MLB.
The numbers behind these live in Pitch Data.
Take me there
His ball is straighter than it should be
Rocker's stuff spins at 2,107 rpm, 21st percentile in the league.
659 pitches in 2026. 21st percentile among qualified pitchers in 2026, 422nd in MLB.
Rangers