:D

Yup, you're missing case book play 6.4.5SitB as already cited.

Where you're getting screwed up is in the definition of a throw-in. Take a look at rules 4-42-4&5. To have a throw-in, the ball must be <b>released</b> by the thrower directly into the court. Article 5 also says that the the throw-in ends when the <b>passed</b> ball touches or is legally touched by another player. In the play being discussed, the ball was <b>NEVER</b> released or passed. Ergo....the throw-in never ended.

Make sense now?

I can't break that habit.......always kick that.

The wording of this play indicates a jumpball whether B1 cleanly takes the ball from A1 or not. Am I reading this correctly, is it always a jump ball? Or can B1 take the ball away from A1 with no jump ball.

Of course B1 can take the ball away.

Okay, if the throwin doesn't end until the "passed" ball is touched on the court….
AP throwin.
B1 grabs ball and immediately pulls it away from A1; no held ball call. Switch the arrow?

I agree with you, but the case play does not seem to allow for it. If Bb1 gets hands on ball and A1 can't pull it back then jumpball.
That very scenario takes place when B1 takes the ball from A1.

I have seen a case where the player out of bounds making the throw in, places his hand out in front of him, inbounds, palm up so that the ball is simply resting in his hand. If the defensive player then slaps the ball out of his hand, that wouldn't possibly be a held ball, would it?

Unless B1 just yanks it away from A1 suddenly, and hustles away. In that case, the throw-in ends legally.

Also, what Smitty says is correct.

And BTW, if A2 removes the ball from A1's hand in any of these ways, it's illegal.

Not in my judgement. I presume you are not wanting me to be your definitive source, what does the rule/case play tell you?

I think the question was Socratic/rhetorical.

How does the throwin end?

Ball is touched legally in-bounds.

I was simply refuting your claim that by definition taking the ball away from the inbounder when they hold it on the inbounds side of the line is always a held ball. I am assuming, based on the previous rule citation, even though the ball is slapped out of the inbounder's hand and play goes on from there, the arrow is not reversed because the thrower never released the ball, and therefore the throw-in never ended. Seems weird, but that's how it seems to play out.

But it was never passed. Definition states a passed ball has to be touched for the throwin to end.