It says he's holding the rim while the ball goes through.

Actually it doesn't.

Well, you're right. I read into it.

While it doesn't explicitly say it, the list of events as described say he grabs the rim, pulls it down, then the ball goes trough. I think it is pretty safe to read that as he hadn't let go yet....BI.

I agree, reading that into the OP isn't unreasonable. But only the OP can answer for sure.

Gentlemen, my apologies
 

Please forgive me for my inadequate description of the play. Yes the player was hanging on the rim and it hadn't snapped back into position when the ball went through.

As an official it is so interesting to read through threads and recall how you reacted in a similar play, what you looked for and how your knowledge of the rule determined your call based on what your response to what you see. I remember seeing the ball go in the net before it was snapped back into position, and that's when I called BI.

I should have more confidence in myself than to ask about such a simple question. At least I learned something. Thank you for your time, and again my apologies.

Still Need More Information ...
 

Did the ring contact the ball, or did the ball go straight "through" without contacting the ring?

4-6-4: Basket Interference: Pulls down a movable ring so that it contacts the ball before the ring returns to its original position.

It doesn't matter.

4-6-1: Basket interference: Touches the ball or any part of the basket (including the net) while the ball is on or within either basket.

Always Listen To BktBallRef ...
 

You're right. In contact with basket (ring) when the ball goes through (in the basket) is definitely basket interference. I somehow, mistakenly, pictured the ball in the cylinder, not in the basket, as the ring sprang back into position.

The whole thread makes sense only if the ball went through while the player was still touching it. The only charitable interpretation of the OP is to assume this.

I agree with most of what you said, but THIS (and this alone) is not (yet) basket interference. Only if the basket is still slightly own when the ball comes through would you have BI here.