On July 12, 1920, shortly after the Walker Law reestablished legal boxing in the state of New York, Rickard secured a ten-year lease of Madison Square Garden from its owner, the New York Life Insurance Company. He promoted a number of championship as well as amateur boxing bouts at the Garden. His largest gate at the Garden came from the Jack Dempsey–Bill Brennan fight on December 14, 1920. The Benny Leonard–Ritchie Mitchell and Johnny Wilson–Mike O'Dowd fights also drew well. In addition to boxing, Rickard hosted a number of other events, including six-day bicycle races, and constructed the world's largest indoor swimming pool at the Garden.