Top of backboard

[Dan_ref]

Originally posted by lukealex
The ball cannot pass over the top of the backboard (rectangular) in either direction. But say a shot is taken and the ball bounces off the rim, bounces on the top of the backboard and comes back down toward the side of the rim. When is the ball out of bounds in regards to the top of the backboard?

In your example the ball is passing east-west along the backboard's width & is legal.

The ball is OOB when it passes directly over the top of the backboard going north-south or from the front face to the back face.

If that makes sense to you.