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
Slider
Hammer+
A hammer breaking ball drops vertically with velocity through the zone, or 12-to-6 movement. Hammer+ of 100 is MLB average.
Slider
Sweep+
A sweeping breaking ball moves horizontally with velocity through the zone. Sweep+ 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.
Intriguing arm with a slender frame at 6’1”, 150. Loose delivery with minimal effort and efficient movements. Gains some ground and releases from a low ¾ arm slot. Uses a three pitch mix (slider, changeup). Fastball has above average movement with good spin (2,476 max spin rate), mostly armside with some vertical ride. Slider has potential to tunnel off of the fastball effectively, also a high spin and movement pitch (2,405 max spin rate). Change-up kills spin effectively and works off of the fastball. With room to add strength to the frame, Jacobs has even more room to grow into a power arm.
Game Results: 10 batters, 2 H, 1 R, 3 K, 3 BB
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Grip strength is a measure of a players bat control and ability to transfer power and speed during impact, measured in pounds of force generated; collected with elbow bent at 90 degrees.
Andrew Jacobs:
Intriguing arm with a slender frame at 6’1”, 150. Loose delivery with minimal effort and efficient movements. Gains some ground and releases from a low ¾ arm slot. Uses a three pitch mix (slider, changeup). Fastball has above average movement with good spin (2,476 max spin rate), mostly armside with some vertical ride. Slider has potential to tunnel off of the fastball effectively, also a high spin and movement pitch (2,405 max spin rate). Change-up kills spin effectively and works off of the fastball. With room to add strength to the frame, Jacobs has even more room to grow into a power arm.
Game Results: 10 batters, 2 H, 1 R, 3 K, 3 BB