Getting Technical on Obstruction

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The runner is obstructed making the turn at 2nd, so I have obstruction, and cannot be tagged out between 2nd and 3rd. If out, then "dead ball" and runner returned to 2nd. The obstruction is signalled at the time of obstruction, which in this case is rounding 2nd. At the time of obstruction, I have no idea of how far the ball will roll from the catcher. If it rolls a good distance, and she is thrown out by a foot at 3rd, I'll place her at 3rd. At the time of obstruction, I don't know how far she would have safely run, until someone actually gets hold of the ball and makes a play.