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.
Both sides hit him about the same
37% of the contact right-handers make against Flexen is hit hard, against 47.6% of what left-handers make.
384 pitches to right-handed hitters, 289 to left-handed hitters.
He handles both hands about the same
Right-handed hitters project to a .308 average against Flexen and left-handers to .357.
384 pitches to right-handed hitters, 289 to left-handed hitters.
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 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.
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 home runs are what is undoing his season
Flexen has given up 7 tracked home runs, 4 of them to right field, the longest 420 feet.
7 tracked home runs allowed in 2025.
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.
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 shape of the contact off him says how he gets outs
42% of the contact against Flexen is on the ground and 36.4% of it is in the air.
143 tracked batted balls allowed.
Hitters tend to hit him to one part of the field
42.4% of the balls put in play against Flexen have gone to centre field.
61 of 144 located batted balls allowed.
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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 .403 expected average against them, against .305 on his fastballs.
192 of his breaking balls thrown.
The numbers behind these live in Matchups.
Take me there
Both sides hit him about the same
37% of the contact right-handers make against Flexen is hit hard, against 47.6% of what left-handers make.
384 pitches to right-handed hitters, 289 to left-handed hitters.
He handles both hands about the same
Right-handed hitters project to a .308 average against Flexen and left-handers to .357.
384 pitches to right-handed hitters, 289 to left-handed hitters.
The numbers behind these live in Pitch Data.
Take me there
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.
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 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
The home runs are what is undoing his season
Flexen has given up 7 tracked home runs, 4 of them to right field, the longest 420 feet.
7 tracked home runs allowed in 2025.
The shape of the contact off him says how he gets outs
42% of the contact against Flexen is on the ground and 36.4% of it is in the air.
143 tracked batted balls allowed.
Hitters tend to hit him to one part of the field
42.4% of the balls put in play against Flexen have gone to centre field.
61 of 144 located batted balls allowed.
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 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.
Mariners
Career team 2021–2023