Fast Pitch: R1 on 2B, 1B and 3B empty. Batter gets ball 4 and runs to 1B, R1 leaves 2B and starts to run for 3B, stops but doesn't make a move back toward 2B. Catcher throws to 3B, overthrows into foul territory. R1 makes it to 3B and BR makes it to 2B.

Defensive coach protests that R1 could not leave 2B because she was not forced. Coaches and Umpires are transitioning from SP.

In SP, ball is dead and R1 can not advance unless forced. Pony 9-2 and ASA 8-1-C indicate that in FP ball is in play unless the ball is blocked. My ruling was that players advanced legally. Right or wrong?

Right. Lots of stuff can go on in fastpitch on a walk. It's a live ball.

New guy,

First of all, welcome. No need to tell us where runners are not located. She wasn't forced, so what? You didn't mention the sanctioning body or age level. In Women's open, the ball is live in SP as it is for all men's SP.

All of which is irrelevant to your point. The ball is live and all advance by the runners is legal.

And if the throw goes dead, the runner from 2nd goes home and if the BR reached 1st by the time of the throw, the BR goes to 3rd.