The Cosmopolitan Soccer League is a regional soccer league consisting of clubs based in and around New York City. Established in 1923, it is one of the oldest soccer leagues in the United States and has contributed greatly to the nation's soccer history. Currently, the league has four open divisions. The first two divisions require all clubs to also field reserve teams, a requirement that some leagues have abolished, but which the Cosmopolitan Soccer League believes makes its competition some of the strongest in United States soccer. The league also has an over-30 and an over-36 division. The league is USASA-affiliated. The Cosmopolitan Soccer League plays a traditional international schedule with competition beginning the second weekend of September and running through June, with a winter break from the middle of December to early or middle March. During the winter months, the league runs an indoor tournament due to New York's cold climate.