Runners on base do not change how he is hit
47.8% of the contact against Jax with a runner in scoring position is hit hard, against 34.1% with the bases empty.
115 pitches with a runner in scoring position, 273 with the bases empty.
There is one pitch of his that keeps getting hit
Contact off Jax's curveball leaves the bat at 92.4 mph, against 85.1 off his sinker.
151 and 387 of them thrown.
He handles both hands about the same
Right-handed hitters project to a .306 average against Jax and left-handers to .365.
182 pitches to right-handed hitters, 206 to left-handed hitters.
His ball moves more than the hitter expects it to
Jax's stuff spins at 2,544 rpm, 92nd percentile in the league.
388 pitches in 2026. 92nd percentile among qualified pitchers in 2026, 43rd in MLB.
One type of hitter does all the damage against him
Hitters do their damage on his offspeed pitches: a .364 expected average against them, against .298 on his breaking balls.
64 of his offspeed pitches thrown.
The shape of the contact off him says how he gets outs
48% of the contact against Jax is on the ground and 31.7% of it is in the air.
300 tracked batted balls allowed.
Hitters cannot square him up, the contact is weak
Contact against Jax is weak: 86.6 mph off the bat on average, 76th percentile.
388 pitches in 2026. 76th percentile among qualified pitchers in 2026, 128th in MLB.
He throws about as hard as anybody in the league
Jax averages 92.5 mph across his arsenal, 88th percentile in the league.
388 pitches in 2026. 88th percentile among qualified pitchers in 2026, 68th in MLB.
Both sides hit him about the same
42.9% of the contact right-handers make against Jax is hit hard, against 35.9% of what left-handers make.
182 pitches to right-handed hitters, 206 to left-handed hitters.
He cannot find the zone often enough
Jax works off the plate, with only 40.4% of his pitches in the zone, 25th percentile.
388 pitches in 2026. 25th percentile among qualified pitchers in 2026, 404th in MLB.
Hitters tend to hit him to one part of the field
43.8% of the balls put in play against Jax have gone to centre field.
134 of 306 located batted balls allowed.
The contact he allows is the kind that finds grass
The quality of contact against Jax projects a .340 average, 36th percentile.
388 pitches in 2026. 36th percentile among qualified pitchers in 2026, 344th in MLB.
The home runs are what is undoing his season
Jax has given up 15 tracked home runs, 6 of them to right field, the longest 432 feet.
15 tracked home runs allowed in 2026.
One side of the plate does most of the damage against him
Right-handed hitters average 86.4 mph off the bat against Jax and left-handers 88.3.
126 tracked batted balls from right-handers, 179 from left-handers.
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The numbers behind these live in Matchups.
Take me there
Runners on base do not change how he is hit
47.8% of the contact against Jax with a runner in scoring position is hit hard, against 34.1% with the bases empty.
115 pitches with a runner in scoring position, 273 with the bases empty.
The numbers behind these live in Pitch Data.
Take me there
There is one pitch of his that keeps getting hit
Contact off Jax's curveball leaves the bat at 92.4 mph, against 85.1 off his sinker.
151 and 387 of them thrown.
The numbers behind these live in Matchups.
Take me there
He handles both hands about the same
Right-handed hitters project to a .306 average against Jax and left-handers to .365.
182 pitches to right-handed hitters, 206 to left-handed hitters.
Both sides hit him about the same
42.9% of the contact right-handers make against Jax is hit hard, against 35.9% of what left-handers make.
182 pitches to right-handed hitters, 206 to left-handed hitters.
The numbers behind these live in Pitch Data.
Take me there
His ball moves more than the hitter expects it to
Jax's stuff spins at 2,544 rpm, 92nd percentile in the league.
388 pitches in 2026. 92nd percentile among qualified pitchers in 2026, 43rd in MLB.
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 .364 expected average against them, against .298 on his breaking balls.
64 of his offspeed pitches thrown.
The numbers behind these live in Pitch Data.
Take me there
The shape of the contact off him says how he gets outs
48% of the contact against Jax is on the ground and 31.7% of it is in the air.
300 tracked batted balls allowed.
Hitters tend to hit him to one part of the field
43.8% of the balls put in play against Jax have gone to centre field.
134 of 306 located batted balls allowed.
The home runs are what is undoing his season
Jax has given up 15 tracked home runs, 6 of them to right field, the longest 432 feet.
15 tracked home runs allowed in 2026.
One side of the plate does most of the damage against him
Right-handed hitters average 86.4 mph off the bat against Jax and left-handers 88.3.
126 tracked batted balls from right-handers, 179 from left-handers.
The numbers behind these live in Spray Chart.
Take me there
Hitters cannot square him up, the contact is weak
Contact against Jax is weak: 86.6 mph off the bat on average, 76th percentile.
388 pitches in 2026. 76th percentile among qualified pitchers in 2026, 128th in MLB.
The contact he allows is the kind that finds grass
The quality of contact against Jax projects a .340 average, 36th percentile.
388 pitches in 2026. 36th percentile among qualified pitchers in 2026, 344th in MLB.
The numbers behind these live in Pitch Data.
Take me there
He throws about as hard as anybody in the league
Jax averages 92.5 mph across his arsenal, 88th percentile in the league.
388 pitches in 2026. 88th percentile among qualified pitchers in 2026, 68th in MLB.
The numbers behind these live in Pitch Data.
Take me there
He cannot find the zone often enough
Jax works off the plate, with only 40.4% of his pitches in the zone, 25th percentile.
388 pitches in 2026. 25th percentile among qualified pitchers in 2026, 404th in MLB.
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