The return of professional sports this summer brought a surge of user growth to sports-betting operator DraftKings Inc., sending revenue higher as the company expanded operations to more states.
DraftKings’ tally of monthly unique players grew by 64% year over year to more than 1 million in the July-to-September period, a stretch that saw the return of play for Major League Baseball and the National Basketball Association. The leagues had suspended their seasons earlier in the year because of the coronavirus pandemic. The…