ASA sneaky stealing

[MNBlue]

It's the stopping on the base that locks the runner to the base. The running through it on a walk is fine, since the BR didn't 'stop' on the base.

The rule is to prevent the cat and mouse games that you see in baseball. Once the runner stops on the base, she is committed to staying on the base, until an action by F1 releases her. Continuing to move, as in your hypothetical situation, the runner never 'committed' to staying at the base, so she is free to continue to move. Once she stops, she must commit to a base and continue to move toward that base, unless F1 commits an action to release her from that committment.