[greymule]

As others have noted, ASA awards bases from the runner's position at the time of the release of the throw or, in the case of the OP, the time the fielder entered DBT, regardless of any obligation to retouch a base left too soon.

NCAA softball is different; it follows OBR. The award in the OP would be 3B, but once the runner returns to retag 1B, the award is changed to 2B. (There is long and complicated justification for this; ASA simplifies things.) Overthrows are treated similarly: if a runner who has left 1B too soon is between 2B and 3B when the fielder releases a throw that goes into DBT, the award is home, but if the runner returns to retouch 1B, the award is changed to 3B.

Don't know about Fed.

These codes differ on what they consider to be the "last base legally touched," just as they differ on what constitutes the runner "closest to home."