Luis Castillo’s slider has averaged 0.0 inches of horizontal movement in 2020. This video breaks down why that number can be a little misleading. It can also be found on Johnny Asel’s YouTube page: https://www.youtube.com/channel/UCnvnQkFJpR5WubOr-xplBsQ
When 0 ≠ 0 – Distance vs Displacement in Pitch Movement

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Pingback: A Discussion of Spin Efficiency – BaseballCloud Blog
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Pingback: A Discussion of Spin Efficiency – BaseballCloud Blog