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
RHP Aidan Hartholt was one of the top arms to take the mound on Friday and posted the top fastball velocity at 88.2mph. Strong, burly frame at 6-foot-3, 205-pounds and featured a four-pitch mix while the fastball sat 86-88mph with 99% spin efficiency. Curveball and changeup both look to be further along than the slider with the ability to land both for strikes.
9/14/23
‘26 RHP/1B Aidan Hartholt posted the top fastball velocity at the event at 87.5mph. Strong, sturdy frame at 6-foot-3, 205-pounds and works with a three-pitch mix. Heavy fastball that sat 85-87mph throughout the entirety of the bullpen and the breaking ball comes with some interesting characteristics. Hartholt creates a ton of depth on the pitch (-16.6 avg IVB) at 67-72mph with 99% spin efficiency. Also flashed a changeup at 78-79mph with heavy horizontal action (17.2 avg HM). Comes with size on the mound and there’s plenty to like with all three pitches in his arsenal.
Draft Reports
Contact
Premium Content Area
To unlock contact information, you need to purchase a ScoutPLUS subscription.
‘26 RHP/1B Aidan Hartholt posted the top fastball velocity at the event at 87.5mph. Strong, sturdy frame at 6-foot-3, 205-pounds and works with a three-pitch mix. Heavy fastball that sat 85-87mph throughout the entirety of the bullpen and the breaking ball comes with some interesting characteristics. Hartholt creates a ton of depth on the pitch (-16.6 avg IVB) at 67-72mph with 99% spin efficiency. Also flashed a changeup at 78-79mph with heavy horizontal action (17.2 avg HM). Comes with size on the mound and there’s plenty to like with all three pitches in his arsenal.