Official Rules(view all)

NFHS 8-2-8

NFHS 8-2-8/OBR 6.01a-Penalty

Whenever a defensive player interferes with an offensive player, the other runners are returned to the last base they had touched before the interference.

[OBR: when there is interference before the batter-runner has reached first, the runners return to their time-of-pitch bases (exceptions: intervening play or BR award to first requires their award to advance base).]