One type of hitter does all the damage against him
Hitters do their damage on his breaking balls: a .437 expected average against them, against .263 on his fastballs.
86 of his breaking balls thrown.
This is the pitch he goes to when he needs the out
With two strikes Rolison goes to the sweeper: 21.3% of his two-strike pitches, against 4.7% the rest of the time.
47 two-strike pitches in 2026.
One pitch of his moves in a way hitters rarely see
Rolison's 4-seam fastball carries 15.2 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
83 thrown, averaging 94.2 mph.
He saves one pitch for one side of the plate
Rolison throws the sweeper 22.9% of the time against left-handers and 0% against right-handers.
105 pitches to right-handers, 70 to left-handers.
He fills the strike zone and makes hitters beat him
Rolison lives in the strike zone: 46.5% of his pitches are in it, 84th percentile.
175 pitches in 2026. 84th percentile among qualified pitchers in 2026, 86th in MLB.
His pitches move in ways that fit together
Rolison works with 4 pitches: 4-Seam Fastball, Slider, Curveball and Sweeper. The 4-seam fastball is 47.4% of everything he throws.
175 classified pitches in 2026.
The contact he allows is the kind that finds grass
The quality of contact against Rolison projects a .365 average, 17th percentile.
175 pitches in 2026. 17th percentile among qualified pitchers in 2026, 445th in MLB.
His ball moves more than the hitter expects it to
Rolison's stuff spins at 2,412 rpm, 78th percentile in the league.
175 pitches in 2026. 78th percentile among qualified pitchers in 2026, 118th in MLB.
He lives on one side of the plate
Rolison works away from right-handers: his average pitch lands 2.1 inches to that side of the middle of the plate.
172 located pitches in 2026.
He falls behind hitters far too often
Rolison throws a strike on the first pitch 56.2% of the time.
48 plate appearances started in 2026.
The angle he throws from is unusual, and hitters notice
Rolison releases the ball from a three-quarters slot, about 45 degrees above horizontal and 1.6 feet to the first-base side of the rubber.
172 tracked release points, averaging 5.9 feet off the ground.
How much of the zone he uses depends on the count
Rolison puts 59.2% of his pitches in the zone when he is behind and 45.7% when he is ahead.
49 located pitches behind, 46 ahead.
He gets by without much velocity, and it costs him
Rolison averages 88.8 mph across his arsenal, 36th percentile in the league.
175 pitches in 2026. 36th percentile among qualified pitchers in 2026, 345th in MLB.
His fastball is the pitch everything else is built on
Rolison's 4-seam fastball averages 94.2 mph, and has touched 96.3.
83 thrown, 47.4% of his pitches.
He leaves too much of it over the heart of the plate
22.1% of Rolison's pitches land in the middle third of the zone, the part of the plate hitters do their damage on.
38 of 172 located pitches.
He throws strikes to one type of hitter and not the other
Rolison lands 50.6% of his breaking balls in the zone and only 41.5% of his fastballs.
86 of his breaking balls, 84 of his fastballs.
He gets so far down the mound the ball arrives early
Rolison releases the ball 6.6 feet down the mound, so the ball arrives sooner than the radar gun suggests.
129 tracked pitches in 2026.
One pitch of his spins more than almost anyone's
Rolison's 4-seam fastball spins at 2,290 rpm, the highest in his arsenal.
83 thrown in 2026.
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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 breaking balls: a .437 expected average against them, against .263 on his fastballs.
86 of his breaking balls thrown.
He throws strikes to one type of hitter and not the other
Rolison lands 50.6% of his breaking balls in the zone and only 41.5% of his fastballs.
86 of his breaking balls, 84 of his fastballs.
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 Rolison goes to the sweeper: 21.3% of his two-strike pitches, against 4.7% the rest of the time.
47 two-strike pitches in 2026.
He falls behind hitters far too often
Rolison throws a strike on the first pitch 56.2% of the time.
48 plate appearances started in 2026.
How much of the zone he uses depends on the count
Rolison puts 59.2% of his pitches in the zone when he is behind and 45.7% when he is ahead.
49 located pitches behind, 46 ahead.
The numbers behind these live in Pitch Data.
Take me there
One pitch of his moves in a way hitters rarely see
Rolison's 4-seam fastball carries 15.2 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
83 thrown, averaging 94.2 mph.
The numbers behind these live in Pitch Data.
Take me there
He saves one pitch for one side of the plate
Rolison throws the sweeper 22.9% of the time against left-handers and 0% against right-handers.
105 pitches to right-handers, 70 to left-handers.
His pitches move in ways that fit together
Rolison works with 4 pitches: 4-Seam Fastball, Slider, Curveball and Sweeper. The 4-seam fastball is 47.4% of everything he throws.
175 classified pitches in 2026.
His fastball is the pitch everything else is built on
Rolison's 4-seam fastball averages 94.2 mph, and has touched 96.3.
83 thrown, 47.4% of his pitches.
One pitch of his spins more than almost anyone's
Rolison's 4-seam fastball spins at 2,290 rpm, the highest in his arsenal.
83 thrown in 2026.
The numbers behind these live in Pitch Data.
Take me there
He fills the strike zone and makes hitters beat him
Rolison lives in the strike zone: 46.5% of his pitches are in it, 84th percentile.
175 pitches in 2026. 84th percentile among qualified pitchers in 2026, 86th in MLB.
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 Rolison projects a .365 average, 17th percentile.
175 pitches in 2026. 17th percentile among qualified pitchers in 2026, 445th in MLB.
The numbers behind these live in Pitch Data.
Take me there
His ball moves more than the hitter expects it to
Rolison's stuff spins at 2,412 rpm, 78th percentile in the league.
175 pitches in 2026. 78th percentile among qualified pitchers in 2026, 118th in MLB.
The numbers behind these live in Pitch Data.
Take me there
He lives on one side of the plate
Rolison works away from right-handers: his average pitch lands 2.1 inches to that side of the middle of the plate.
172 located pitches in 2026.
He leaves too much of it over the heart of the plate
22.1% of Rolison's pitches land in the middle third of the zone, the part of the plate hitters do their damage on.
38 of 172 located pitches.
The numbers behind these live in Pitch Data.
Take me there
The angle he throws from is unusual, and hitters notice
Rolison releases the ball from a three-quarters slot, about 45 degrees above horizontal and 1.6 feet to the first-base side of the rubber.
172 tracked release points, averaging 5.9 feet off the ground.
He gets so far down the mound the ball arrives early
Rolison releases the ball 6.6 feet down the mound, so the ball arrives sooner than the radar gun suggests.
129 tracked pitches in 2026.
The numbers behind these live in Pitch Data.
Take me there
He gets by without much velocity, and it costs him
Rolison averages 88.8 mph across his arsenal, 36th percentile in the league.
175 pitches in 2026. 36th percentile among qualified pitchers in 2026, 345th in MLB.
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