A fastball with hop has a flat approach angle and visually jumps through the zone. When thrown up in the zone, it is more likely to generate a higher swing and miss average. Hop+ of 100 is MLB average.
Fastball
Sink+
A fastball with sink has low backspin and drops through the strike zone. When thrown down in the zone, it is more likely to generate a higher ground ball percentage and lower launch angle. Sink+ of 100 is MLB average.
Fastball
Rise+
A fastball with rise has a high percentage of backspin. When thrown up in the zone, it is more likely to generate a higher fly ball percentage. Rise+ of 100 is MLB average
The maximum speed, in the direction of home plate, that the wrist is traveling. Measured in meters per second (m/s)
Arm Slot
Angle of the forearm relative to the ground between maximum external rotation (MER) and ball release (BR). Which can be a powerful player comparison metric, delivered in degrees.
Knee Extension Velo
The angular velocity of the front knee straightening after foot plant, which provides indicators of velocity potential. Measured in degrees per second.
Deception
The amount of time that the ball is visible to the hitter, after the instant of front foot strike. Measures in milliseconds.
Hip-Shoulder Separation
The difference in angle of between the hips and shoulders, occurring close to the foot plant. Measured in degrees.
Aidan Niggl, Mt. Juliet (TN), 2025 Positional Profile: RHP/1B Body: 6-3, 185-pounds. Tall frame with long limbs and a strong lower half. Looks the part on the mound. Delivery: Starts with a modifed windup, with a small turn into the stretch position. Has a controlled leg lift into a solid drive down the mound. Arm Action: RH. Long arm swing behind the body into a quick over the top arm action. FB: T90, 88-90 mph. FB jumped on hitters w/ good spin rate, will generate swings and misses. Got up to 20 in of IVB. T2237, 2125 average rpm. SL: 82-83 mph. SL has improved from previous showings, with solid horizontal movement. T2216, 2179 average rpm. CH: 82-82 mph. Changeup plays well off of FB and is a different look from SL. T1899, 1894 average rpm.
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Positional Profile: RHP/1B
Body: 6-3, 185-pounds. Tall frame with long limbs and a strong lower half. Looks the part on the mound.
Delivery: Starts with a modifed windup, with a small turn into the stretch position. Has a controlled leg lift into a solid drive down the mound.
Arm Action: RH. Long arm swing behind the body into a quick over the top arm action.
FB: T90, 88-90 mph. FB jumped on hitters w/ good spin rate, will generate swings and misses. Got up to 20 in of IVB. T2237, 2125 average rpm.
SL: 82-83 mph. SL has improved from previous showings, with solid horizontal movement. T2216, 2179 average rpm.
CH: 82-82 mph. Changeup plays well off of FB and is a different look from SL. T1899, 1894 average rpm.