Back in March, I wrote about the Bauer Unit (spin rate/velocity) on the fastball in regards to the Pittsburgh Pirates starting rotation. The idea came from Kyle Boddy of Driveline Baseball, a biomechanics research lab in the state of Washington. Driveline research concluded that,
“League average Bauer Units -> look into developing a 2-seam
Above average Bauer Units -> try to throw middle/up in the zone
Below average Bauer Units -> try to throw middle/down in the zone”
In 2016, the league average Bauer Unit was 23.9 when you using the data from baseball savant.