The Fortuna Liga is the top professional football league in the Czech Republic. Established in 1993, it features 16 teams competing annually for the championship title. The league operates on a system of promotion and relegation with the Czech National Football League, the second tier of Czech football. Matches are typically held from July to May, with each team playing 30 games in a round-robin format. The league is named after its main sponsor, Fortuna, a betting company. The top teams qualify for European competitions, such as the UEFA Champions League and the UEFA Europa League.