My DD was in town. So, we did some super slow motion of her drop ball. She hasn't thrown this competitively in 15 years, so she isn't as fast as before. She can still spin the ball.
Note the grip she uses. She has the fingers crossing the seams. The middle finger is laying on a seam.
The next picture is her hand position at release. Note that the middle finger is vertical. So, the spin is generated almost entirely by the middle finger.
The spin on this pitch was 27RPS.
NOTES: We were using a Samsung phone with super slow motion, so we were limited. She does have the ball up at 9. She moved to the left after release to allow viewing of the ball flight.
<iframe width="560" height="315" src="https://www.youtube.com/embed/aAtD39T0HFg" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
Note the grip she uses. She has the fingers crossing the seams. The middle finger is laying on a seam.
The next picture is her hand position at release. Note that the middle finger is vertical. So, the spin is generated almost entirely by the middle finger.
The spin on this pitch was 27RPS.
NOTES: We were using a Samsung phone with super slow motion, so we were limited. She does have the ball up at 9. She moved to the left after release to allow viewing of the ball flight.
<iframe width="560" height="315" src="https://www.youtube.com/embed/aAtD39T0HFg" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
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