Police say a woman called them after the incident occurred and officers were then dispatched to the Tropicana Casino Havana Tower in Atlantic City. The 28-year-old woman did not exhibit any signs of injury and did not file any complaints at the time.
An investigation later led to the running back getting charged with "simple assault" related to the "domestic violence incident."
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According to the court summons, the woman accuses Gore of grabbing her by her hair and dragging her down a hallway. Gore is due in court next month.
Earlier in June Gore announced his retirement from the 49ers and the team shared that he would enter its Hall of Fame.