IAABO practice question
 

Try this question:
A-1, while dribbling in the frontcourt, has the ball deflected into the backcourt by B-1. When A-1 regains control in the backcourt, the official begins the 10 second count. Is the official correct?
The answer is "No".....it took me a few days to find the mistake

The count begins when the ball attains BC status, not when A1 regains player control.

.... because team control was never lost.

Sorry, I thought you were asking about what the official did wrong.

No mistake - the answer is indeed "no".

The reason is because the official was incorrect for starting the count when A1 recovered the ball. The count should have been started as soon as the ball was in the back court.

What trips up most people on this question is the issue of the count not starting until there is team control in the backcourt. On throw-ins, team control doesn't exist until the ball is possesed in bounds by a player, so many people assume the count doesn't start until it is controlled. In the above question, team control already existed, so the count starts as soon as the ball enters the backcourt.

Is this a case book play. Not at home so I don't have it with me.

I don't believe it is. But it sure ought to be. I know a lot of officials who would argue the count doesn't start until the ball is recovered.