When he falls behind, hitters know exactly what is coming
Behind in the count Flexen throws a fastball 82.4% of the time, against 50.5% when he is ahead.
187 pitches behind in the count, 186 ahead.
One pitch of his runs sideways more than almost anyone's
Flexen's curveball moves 62.3 inches toward the third-base side, the biggest horizontal move in his arsenal.
115 thrown, averaging 72.8 mph.
The gap between his pitches is what makes them work
19.6 mph separates Flexen's 4-seam fastball from his curveball, 92.4 against 72.8.
277 and 115 of them respectively.
One type of hitter does all the damage against him
Hitters do their damage on his breaking balls: a .403 expected average against them, against .305 on his fastballs.
192 of his breaking balls thrown.
One pitch of his moves in a way hitters rarely see
Flexen's 4-seam fastball carries 17.7 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
277 thrown, averaging 92.4 mph.
The angle he throws from is unusual, and hitters notice
Flexen releases the ball from over the top, about 74 degrees above horizontal and 0.6 feet to the third-base side of the rubber.
673 tracked release points, averaging 6.7 feet off the ground.
This is the pitch he goes to when he needs the out
With two strikes Flexen goes to the curveball: 27.8% of his two-strike pitches, against 13.2% the rest of the time.
180 two-strike pitches in 2025.
He gets by without much velocity, and it costs him
Flexen averages 86.5 mph across his arsenal, 16th percentile in the league.
673 pitches in 2025. 16th percentile among qualified pitchers in 2025, 659th in MLB.
He fills the strike zone and makes hitters beat him
Flexen lives in the strike zone: 49.6% of his pitches are in it, 78th percentile.
673 pitches in 2025. 78th percentile among qualified pitchers in 2025, 171st in MLB.
How much of the zone he uses depends on the count
Flexen puts 64.7% of his pitches in the zone when he is behind and 36.6% when he is ahead.
187 located pitches behind, 186 ahead.
He saves one pitch for one side of the plate
Flexen throws the cutter 35.7% of the time against right-handers and 18.3% against left-handers.
384 pitches to right-handers, 289 to left-handers.
He pitches around the zone once runners are on
Flexen throws 53.1% of his pitches in the zone with a runner in scoring position and 48.5% with the bases empty.
160 pitches with a runner in scoring position, 513 with the bases empty.
One pitch of his spins more than almost anyone's
Flexen's curveball spins at 2,636 rpm, the highest in his arsenal.
115 thrown in 2025.
His ball moves more than the hitter expects it to
Flexen's stuff spins at 2,397 rpm, 75th percentile in the league.
673 pitches in 2025. 75th percentile among qualified pitchers in 2025, 197th in MLB.
When hitters connect off him, they hit it hard
Hitters average 89.9 mph off the bat against Flexen, 28th percentile.
673 pitches in 2025. 28th percentile among qualified pitchers in 2025, 564th in MLB.
His pitches move in ways that fit together
Flexen works with 4 pitches: 4-Seam Fastball, Cutter, Curveball and Slider. The 4-seam fastball is 41.2% of everything he throws.
673 classified pitches in 2025.
He throws strikes to one type of hitter and not the other
Flexen lands 53.5% of his fastballs in the zone and only 42.2% of his breaking balls.
467 of his fastballs, 192 of his breaking balls.
There is one pitch of his that keeps getting hit
Contact off Flexen's slider leaves the bat at 91.6 mph, against 87.9 off his curveball.
60 and 115 of them thrown.
He lives on the edges rather than over the middle
21.5% of Flexen's pitches land in the middle third of the zone, well below what most pitchers give away.
145 of 673 located pitches.
He releases the ball about where everyone else does
Flexen releases the ball 6.2 feet down the mound, a shorter stride than most.
673 tracked pitches in 2025.
His fastball is the pitch everything else is built on
Flexen's 4-seam fastball averages 92.4 mph, and has touched 95.3.
277 thrown, 41.2% of his pitches.
He gets ahead early and pitches from in front all night
Flexen throws a strike on the first pitch 61.5% of the time.
179 plate appearances started in 2025.
One pitch exists only to make the hitter think
Flexen has thrown 17 slurves this season, 2.5% of his pitches, at 77.6 mph: a look rather than a weapon.
673 classified pitches in 2025.
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The numbers behind these live in Pitch Data.
Take me there
When he falls behind, hitters know exactly what is coming
Behind in the count Flexen throws a fastball 82.4% of the time, against 50.5% when he is ahead.
187 pitches behind in the count, 186 ahead.
This is the pitch he goes to when he needs the out
With two strikes Flexen goes to the curveball: 27.8% of his two-strike pitches, against 13.2% the rest of the time.
180 two-strike pitches in 2025.
How much of the zone he uses depends on the count
Flexen puts 64.7% of his pitches in the zone when he is behind and 36.6% when he is ahead.
187 located pitches behind, 186 ahead.
He gets ahead early and pitches from in front all night
Flexen throws a strike on the first pitch 61.5% of the time.
179 plate appearances started in 2025.
The numbers behind these live in Pitch Data.
Take me there
One pitch of his runs sideways more than almost anyone's
Flexen's curveball moves 62.3 inches toward the third-base side, the biggest horizontal move in his arsenal.
115 thrown, averaging 72.8 mph.
One pitch of his moves in a way hitters rarely see
Flexen's 4-seam fastball carries 17.7 inches of ride against a spinless ball, the biggest vertical move in his arsenal.
277 thrown, averaging 92.4 mph.
The numbers behind these live in Pitch Data.
Take me there
The gap between his pitches is what makes them work
19.6 mph separates Flexen's 4-seam fastball from his curveball, 92.4 against 72.8.
277 and 115 of them respectively.
He saves one pitch for one side of the plate
Flexen throws the cutter 35.7% of the time against right-handers and 18.3% against left-handers.
384 pitches to right-handers, 289 to left-handers.
One pitch of his spins more than almost anyone's
Flexen's curveball spins at 2,636 rpm, the highest in his arsenal.
115 thrown in 2025.
His pitches move in ways that fit together
Flexen works with 4 pitches: 4-Seam Fastball, Cutter, Curveball and Slider. The 4-seam fastball is 41.2% of everything he throws.
673 classified pitches in 2025.
There is one pitch of his that keeps getting hit
Contact off Flexen's slider leaves the bat at 91.6 mph, against 87.9 off his curveball.
60 and 115 of them thrown.
His fastball is the pitch everything else is built on
Flexen's 4-seam fastball averages 92.4 mph, and has touched 95.3.
277 thrown, 41.2% of his pitches.
One pitch exists only to make the hitter think
Flexen has thrown 17 slurves this season, 2.5% of his pitches, at 77.6 mph: a look rather than a weapon.
673 classified pitches in 2025.
Show more
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 .403 expected average against them, against .305 on his fastballs.
192 of his breaking balls thrown.
He throws strikes to one type of hitter and not the other
Flexen lands 53.5% of his fastballs in the zone and only 42.2% of his breaking balls.
467 of his fastballs, 192 of his breaking balls.
The numbers behind these live in Pitch Data.
Take me there
The angle he throws from is unusual, and hitters notice
Flexen releases the ball from over the top, about 74 degrees above horizontal and 0.6 feet to the third-base side of the rubber.
673 tracked release points, averaging 6.7 feet off the ground.
He releases the ball about where everyone else does
Flexen releases the ball 6.2 feet down the mound, a shorter stride than most.
673 tracked pitches in 2025.
The numbers behind these live in Pitch Data.
Take me there
He gets by without much velocity, and it costs him
Flexen averages 86.5 mph across his arsenal, 16th percentile in the league.
673 pitches in 2025. 16th percentile among qualified pitchers in 2025, 659th in MLB.
The numbers behind these live in Pitch Data.
Take me there
He fills the strike zone and makes hitters beat him
Flexen lives in the strike zone: 49.6% of his pitches are in it, 78th percentile.
673 pitches in 2025. 78th percentile among qualified pitchers in 2025, 171st in MLB.
The numbers behind these live in Matchups.
Take me there
He pitches around the zone once runners are on
Flexen throws 53.1% of his pitches in the zone with a runner in scoring position and 48.5% with the bases empty.
160 pitches with a runner in scoring position, 513 with the bases empty.
The numbers behind these live in Pitch Data.
Take me there
His ball moves more than the hitter expects it to
Flexen's stuff spins at 2,397 rpm, 75th percentile in the league.
673 pitches in 2025. 75th percentile among qualified pitchers in 2025, 197th in MLB.
The numbers behind these live in Spray Chart.
Take me there
When hitters connect off him, they hit it hard
Hitters average 89.9 mph off the bat against Flexen, 28th percentile.
673 pitches in 2025. 28th percentile among qualified pitchers in 2025, 564th in MLB.
The numbers behind these live in Pitch Data.
Take me there
He lives on the edges rather than over the middle
21.5% of Flexen's pitches land in the middle third of the zone, well below what most pitchers give away.
145 of 673 located pitches.
Mariners
Career team 2021–2023