This is the pitch he goes to when he needs the out
With two strikes Rocker goes to the slider: 56.8% of his two-strike pitches, against 28.2% the rest of the time.
176 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.
One pitch of his runs sideways more than almost anyone's
Rocker's sinker moves 16.2 inches toward the third-base side, the biggest horizontal move in his arsenal.
245 thrown, averaging 94.6 mph.
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 2.03 feet, against a zone that runs 1.5 to 3.5.
659 located pitches in 2026.
When he falls behind, hitters know exactly what is coming
Behind in the count Rocker throws a fastball 74% of the time, against 36.8% when he is ahead.
219 pitches behind in the count, 155 ahead.
There is one pitch of his that keeps getting hit
Contact off Rocker's sinker leaves the bat at 91.9 mph, against 86.5 off his 4-seam fastball.
245 and 70 of them thrown.
The angle he throws from is unusual, and hitters notice
Rocker releases the ball from a low three-quarters slot, about 33 degrees above horizontal and 2.0 feet to the third-base side of the rubber.
659 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 94.3 mph in his first 25 pitches of a start and 93.0 past his 75th.
112 early fastballs, 56 late ones.
He saves one pitch for one side of the plate
Rocker throws the sinker 47.8% of the time against right-handers and 29.5% against left-handers.
276 pitches to right-handers, 383 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.
How much of the zone he uses depends on the count
Rocker puts 59.4% of his pitches in the zone when he is behind and 36.1% when he is ahead.
219 located pitches behind, 155 ahead.
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 11.6 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
70 thrown, averaging 94.6 mph.
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 5 pitches: Sinker, Slider, 4-Seam Fastball and Changeup, and a little else. The sinker is 37.2% of everything he throws.
659 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 falls behind hitters far too often
Rocker throws a strike on the first pitch 53.9% of the time.
165 plate appearances started in 2026.
His fastball is the pitch everything else is built on
Rocker's sinker averages 94.6 mph, and has touched 97.3.
245 thrown, 37.2% of his pitches.
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.
531 tracked pitches in 2026.
He lives on the edges rather than over the middle
18.5% of Rocker's pitches land in the middle third of the zone, well below what most pitchers give away.
122 of 659 located pitches.
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 gap between his pitches is what makes them work
10.7 mph separates Rocker's sinker from his slider, 94.6 against 83.9.
245 and 236 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 Rocker goes to the slider: 56.8% of his two-strike pitches, against 28.2% the rest of the time.
176 two-strike pitches in 2026.
When he falls behind, hitters know exactly what is coming
Behind in the count Rocker throws a fastball 74% of the time, against 36.8% when he is ahead.
219 pitches behind in the count, 155 ahead.
How much of the zone he uses depends on the count
Rocker puts 59.4% of his pitches in the zone when he is behind and 36.1% when he is ahead.
219 located pitches behind, 155 ahead.
He falls behind hitters far too often
Rocker throws a strike on the first pitch 53.9% of the time.
165 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
One pitch of his runs sideways more than almost anyone's
Rocker's sinker moves 16.2 inches toward the third-base side, the biggest horizontal move in his arsenal.
245 thrown, averaging 94.6 mph.
One pitch of his moves in a way hitters rarely see
Rocker's 4-seam fastball carries 11.6 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
70 thrown, averaging 94.6 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 2.03 feet, against a zone that runs 1.5 to 3.5.
659 located pitches in 2026.
He lives on the edges rather than over the middle
18.5% of Rocker's pitches land in the middle third of the zone, well below what most pitchers give away.
122 of 659 located pitches.
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 sinker leaves the bat at 91.9 mph, against 86.5 off his 4-seam fastball.
245 and 70 of them thrown.
He saves one pitch for one side of the plate
Rocker throws the sinker 47.8% of the time against right-handers and 29.5% against left-handers.
276 pitches to right-handers, 383 to left-handers.
His pitches move in ways that fit together
Rocker works with 5 pitches: Sinker, Slider, 4-Seam Fastball and Changeup, and a little else. The sinker is 37.2% of everything he throws.
659 classified pitches in 2026.
His fastball is the pitch everything else is built on
Rocker's sinker averages 94.6 mph, and has touched 97.3.
245 thrown, 37.2% of his pitches.
The gap between his pitches is what makes them work
10.7 mph separates Rocker's sinker from his slider, 94.6 against 83.9.
245 and 236 of them respectively.
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 33 degrees above horizontal and 2.0 feet to the third-base side of the rubber.
659 tracked release points, averaging 5.8 feet off the ground.
His velocity drains away as the outing goes on
Rocker's fastball averages 94.3 mph in his first 25 pitches of a start and 93.0 past his 75th.
112 early fastballs, 56 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.
531 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