Pass to yourself

[Illini_Ref]

Bob,

if it is legal to throw the ball off of your own board (not a try) and recover it, why is it not legal to throw the ball over the top of a defender, run around him and catch it before it hits the floor? I can't find a rules difference.

In the NBA play the player dribbled downcourt, threw the ball of of his board (obviously not a try) and slammed it through the basket. Since his own board cannot constitute a dribble, how is this legal?