Sidearm delivery in ASA FP

[bellnier]

Here's the confusion I witnessed. From the top of the arc to about when the hand came around to the hip, the pitchers hand was noticably outside the plane of the elbow...but when the ball was RELEASED the hand and wrist looked in line with, or even inside, the elbow. Does (b) say that AS SOON AS the hand goes below the hip the wrist must be inside the elbow? Or just on release? Thanks again.