[greymule]

Once the pitcher makes a play on the runner, the look-back rule is off for all runners. It's like time out in that it is universal and does not apply in one place and not another.

I believe that ASA and Fed do differ in what they consider to be a play. In ASA, a play is just about anything the pitcher does that the runner might interpret as being a play (such as simply holding the ball up or turning quickly toward the runner). I no longer do Fed, but I think they want to see more of a definite "play."

Incidentally, ASA POE #33, which covers the look-back rule, contains a very misleading sentence:

"If a runner is moving toward a base, other than first base, when the pitcher receives that ball in the circle, that runner must continue toward the base or be called out."

This is obviously untrue. A runner could have rounded 2B and be two steps toward 2B and still moving when the pitcher gets the ball in the circle. The runner is still entitled to a stop, after which she could either proceed toward 3B or return to 2B.