R1 on 1st base line drive to SS that is caught, R1 is off the bag and SS throws back to 1st to try to double up therunner, ball goes out of play, I know the runner still must go back and tag 1st before advancing on his awarded 2 bases. my question is even though he has already legally attained 1st base does going back to re-tag count as 1 base and therefore end up on 2nd, or is he awarded 3rd?