In the winter of 1931, Ely Culbertson challenged Sidney Lenz to a match over 150 rubbers, Lenz playing the then ‘official’ system, and Culbertson his own. The winner of this match (dubbed ‘The Battle of the Century’) was Culbertson, by 8,980 points, and it resulted in the wide acceptance of Culbertson’s ideas on bidding.
