The top professional Czech basketball league is Mattoni National Basketball League (Mattoni Národní basketbalová liga). Participating in the competition are 12 clubs and the season lasts 9 months. Current champion is ČEZ Basketball Nymburk (season 2005 - 2006). Czech basketball champion participate in FIBA Europe EuroCup, other top teams in FIBA Europe EuroCup Challenge.
The top women's Czech basketball league is Women's Basketball League (Ženská basketbalová liga). There are 10 teams participating in this competition. Current women's champion is Gambrinus Sika Brno (season 2005 - 2006). Two best teams participate in FIBA Europe Euroleague Women. Gambrinus Brno has won this competition in 2006. Other top teams participate in FIBA Europe EuroCup Women.
The Czech teams also compete in a domestic cup competition each year.