The Ekstraklasa (since July 2016 currently named Lotto Ekstraklasa due to sponsorship reasons) is the top Polish professional league for men's association football clubs (it is the country's primary football competition). Contested by 16 clubs, operating a system of promotion and relegation with the I liga. Seasons starts in July, and ends in May or June the following year. Teams play a total of 37 games each, totalling 296 matches in the season. Games are played on Fridays, Saturdays, Sundays and Mondays. The winner of the Ekstraklasa qualifies for the Polish SuperCup. The Ekstraklasa is now operated by the Ekstraklasa SA (English: Ekstraklasa Joint-stock company).