He pitches differently depending on which hand is up
Arias puts 57% of his pitches to right-handers in the zone and 45% of his pitches to left-handers.
107 pitches to right-handed hitters, 100 to left-handed hitters.
One type of hitter does all the damage against him
Hitters do their damage on his fastballs: a .479 expected average against them, against .359 on his breaking balls.
78 of his fastballs thrown.
One pitch of his runs sideways more than almost anyone's
Arias's 4-seam fastball moves 70.6 inches toward the first-base side, the biggest horizontal move in his arsenal.
59 thrown, averaging 94.0 mph.
There is one pitch of his that keeps getting hit
Contact off Arias's 4-seam fastball leaves the bat at 101.7 mph, against 92.9 off his slider.
59 and 96 of them thrown.
He fills the strike zone and makes hitters beat him
Arias lives in the strike zone: 51.2% of his pitches are in it, 91st percentile.
207 pitches in 2025. 91st percentile among qualified pitchers in 2025, 74th in MLB.
One pitch of his moves in a way hitters rarely see
Arias's 4-seam fastball carries 16.8 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
59 thrown, averaging 94.0 mph.
This is the pitch he goes to when he needs the out
With two strikes Arias goes to the splitter: 25.5% of his two-strike pitches, against 12.5% the rest of the time.
55 two-strike pitches in 2025.
When hitters connect off him, they hit it hard
Hitters average 94.4 mph off the bat against Arias, 1st percentile.
207 pitches in 2025. 1st percentile among qualified pitchers in 2025, 769th in MLB.
He gets by without much velocity, and it costs him
Arias averages 86.8 mph across his arsenal, 18th percentile in the league.
207 pitches in 2025. 18th percentile among qualified pitchers in 2025, 636th in MLB.
The contact he allows is the kind that finds grass
The quality of contact against Arias projects a .424 average, 3rd percentile.
207 pitches in 2025. 3rd percentile among qualified pitchers in 2025, 756th in MLB.
He saves one pitch for one side of the plate
Arias throws the splitter 27% of the time against left-handers and 5.6% against right-handers.
107 pitches to right-handers, 100 to left-handers.
The angle he throws from is unusual, and hitters notice
Arias releases the ball from a three-quarters slot, about 63 degrees above horizontal and 0.8 feet to the third-base side of the rubber.
207 tracked release points, averaging 5.9 feet off the ground.
He works one part of the zone far more than the rest
Arias lives at the bottom of the zone: his average pitch crosses at 2.26 feet, against a zone that runs 1.5 to 3.5.
207 located pitches in 2025.
His ball is straighter than it should be
Arias's stuff spins at 2,118 rpm, 19th percentile in the league.
207 pitches in 2025. 19th percentile among qualified pitchers in 2025, 630th in MLB.
Even behind in the count he keeps hitters guessing
Behind in the count Arias throws a fastball 35.3% of the time, against 46.3% when he is ahead.
51 pitches behind in the count, 67 ahead.
His pitches move in ways that fit together
Arias works with 4 pitches: Slider, 4-Seam Fastball, Splitter and Sinker. The slider is 46.4% of everything he throws.
207 classified pitches in 2025.
Too much of the contact against him is loud
47.4% of the contact Arias gives up is hit hard, 15th percentile.
207 pitches in 2025. 15th percentile among qualified pitchers in 2025, 662nd in MLB.
He throws strikes to one type of hitter and not the other
Arias lands 57.3% of his breaking balls in the zone and only 46.2% of his fastballs.
96 of his breaking balls, 78 of his fastballs.
He releases the ball about where everyone else does
Arias releases the ball 6.1 feet down the mound, a shorter stride than most.
207 tracked pitches in 2025.
The gap between his pitches is what makes them work
11.5 mph separates Arias's 4-seam fastball from his slider, 94.0 against 82.5.
59 and 96 of them respectively.
He lives on one side of the plate
Arias works in on right-handers: his average pitch lands 1.5 inches to that side of the middle of the plate.
207 located pitches in 2025.
How much of the zone he uses depends on the count
Arias puts 58.8% of his pitches in the zone when he is behind and 47.8% when he is ahead.
51 located pitches behind, 67 ahead.
His fastball is the pitch everything else is built on
Arias's 4-seam fastball averages 94.0 mph, and has touched 96.2.
59 thrown, 28.5% of his pitches.
He falls behind hitters far too often
Arias throws a strike on the first pitch 58.2% of the time.
55 plate appearances started in 2025.
One pitch of his spins more than almost anyone's
Arias's 4-seam fastball spins at 2,344 rpm, the highest in his arsenal.
59 thrown in 2025.
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The numbers behind these live in Matchups.
Take me there
He pitches differently depending on which hand is up
Arias puts 57% of his pitches to right-handers in the zone and 45% of his pitches to left-handers.
107 pitches to right-handed hitters, 100 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 fastballs: a .479 expected average against them, against .359 on his breaking balls.
78 of his fastballs thrown.
He throws strikes to one type of hitter and not the other
Arias lands 57.3% of his breaking balls in the zone and only 46.2% of his fastballs.
96 of his breaking balls, 78 of his fastballs.
The numbers behind these live in Pitch Data.
Take me there
One pitch of his runs sideways more than almost anyone's
Arias's 4-seam fastball moves 70.6 inches toward the first-base side, the biggest horizontal move in his arsenal.
59 thrown, averaging 94.0 mph.
One pitch of his moves in a way hitters rarely see
Arias's 4-seam fastball carries 16.8 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
59 thrown, averaging 94.0 mph.
The numbers behind these live in Pitch Data.
Take me there
There is one pitch of his that keeps getting hit
Contact off Arias's 4-seam fastball leaves the bat at 101.7 mph, against 92.9 off his slider.
59 and 96 of them thrown.
He saves one pitch for one side of the plate
Arias throws the splitter 27% of the time against left-handers and 5.6% against right-handers.
107 pitches to right-handers, 100 to left-handers.
His pitches move in ways that fit together
Arias works with 4 pitches: Slider, 4-Seam Fastball, Splitter and Sinker. The slider is 46.4% of everything he throws.
207 classified pitches in 2025.
The gap between his pitches is what makes them work
11.5 mph separates Arias's 4-seam fastball from his slider, 94.0 against 82.5.
59 and 96 of them respectively.
His fastball is the pitch everything else is built on
Arias's 4-seam fastball averages 94.0 mph, and has touched 96.2.
59 thrown, 28.5% of his pitches.
One pitch of his spins more than almost anyone's
Arias's 4-seam fastball spins at 2,344 rpm, the highest in his arsenal.
59 thrown in 2025.
The numbers behind these live in Pitch Data.
Take me there
He fills the strike zone and makes hitters beat him
Arias lives in the strike zone: 51.2% of his pitches are in it, 91st percentile.
207 pitches in 2025. 91st percentile among qualified pitchers in 2025, 74th in MLB.
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 Arias goes to the splitter: 25.5% of his two-strike pitches, against 12.5% the rest of the time.
55 two-strike pitches in 2025.
Even behind in the count he keeps hitters guessing
Behind in the count Arias throws a fastball 35.3% of the time, against 46.3% when he is ahead.
51 pitches behind in the count, 67 ahead.
How much of the zone he uses depends on the count
Arias puts 58.8% of his pitches in the zone when he is behind and 47.8% when he is ahead.
51 located pitches behind, 67 ahead.
He falls behind hitters far too often
Arias throws a strike on the first pitch 58.2% of the time.
55 plate appearances started in 2025.
The numbers behind these live in Spray Chart.
Take me there
When hitters connect off him, they hit it hard
Hitters average 94.4 mph off the bat against Arias, 1st percentile.
207 pitches in 2025. 1st percentile among qualified pitchers in 2025, 769th in MLB.
The contact he allows is the kind that finds grass
The quality of contact against Arias projects a .424 average, 3rd percentile.
207 pitches in 2025. 3rd percentile among qualified pitchers in 2025, 756th in MLB.
Too much of the contact against him is loud
47.4% of the contact Arias gives up is hit hard, 15th percentile.
207 pitches in 2025. 15th percentile among qualified pitchers in 2025, 662nd in MLB.
The numbers behind these live in Pitch Data.
Take me there
He gets by without much velocity, and it costs him
Arias averages 86.8 mph across his arsenal, 18th percentile in the league.
207 pitches in 2025. 18th percentile among qualified pitchers in 2025, 636th in MLB.
The numbers behind these live in Pitch Data.
Take me there
The angle he throws from is unusual, and hitters notice
Arias releases the ball from a three-quarters slot, about 63 degrees above horizontal and 0.8 feet to the third-base side of the rubber.
207 tracked release points, averaging 5.9 feet off the ground.
He releases the ball about where everyone else does
Arias releases the ball 6.1 feet down the mound, a shorter stride than most.
207 tracked pitches in 2025.
The numbers behind these live in Pitch Data.
Take me there
He works one part of the zone far more than the rest
Arias lives at the bottom of the zone: his average pitch crosses at 2.26 feet, against a zone that runs 1.5 to 3.5.
207 located pitches in 2025.
He lives on one side of the plate
Arias works in on right-handers: his average pitch lands 1.5 inches to that side of the middle of the plate.
207 located pitches in 2025.
The numbers behind these live in Pitch Data.
Take me there
His ball is straighter than it should be
Arias's stuff spins at 2,118 rpm, 19th percentile in the league.
207 pitches in 2025. 19th percentile among qualified pitchers in 2025, 630th in MLB.