It’s one of those sports debates that you almost never find consensus on: who is the greatest (fill in the blank). In the case of the United States Bowling Congress Open Championships, a strong case can be made that Bill Lillard is the greatest competitor in tournament history. His eight Eagles — six in the Regular Division and two in the Classic Division — aren’t the most, but they are close. And he nearly won a ninth in 1981 when he finished third in doubles with his...