[hoopguy]

I have not seen a convincing argument for the held ball vs out of bounds. Still unsure about the correct ruling but still leaning toward out of bounds. To dispute some of the points above for held ball.

The player must land before blowing the wistle for jump ball. Case 4.25.2 supports this. Common sense also supports this. Try blowing the whistle for a jump ball on the touch for block and then the offensive player while still airborne pumps and makes the shot. You call jump and see what your evaluator or assignor thinks of that call. good luck!!

Traveling -
Player lifts pivot foot and dribbles the ball out of bounds. I call out of bounds. Nothing in rules or case refer to whether this is traveling or oob so a case could be made either way but an oob call will be the easier call to sell.

Player jumps in the air and lands out of bounds. I call out of bounds not traveling.

Another argument for the out of bounds call, case 4.23.3a - 'player called for blocking foul because a player may not be out of bounds and obtain or maintain legal guarding position.' My argument is that the defensive player is out of bounds and therefore can't get the jump ball call using the same reasoning as the legal guarding postion. To call jump ball you would be rewarding a defensive player who is not a legal defender.

What if defensive player b1 is standing out of bounds and never jumps and is tall enough to block the shot and player a1 comes down with the ball. This is obviously oob. Not like the op but neither are the lifting the pivot foot and dribling in bounds or jumping and landing in bounds with the ball.

At this point I do not see a clear rules interpretation of this call and I think both arguments are valid but I am leaning toward oob.