The Czech First League, also known as the Fortuna Liga for sponsorship reasons, is the top professional football league in the Czech Republic. Established in 1993, it features 18 teams competing annually for the championship title. The league operates on a system of promotion and relegation with the Czech National Football League. Each season, teams play a total of 34 matches, facing each opponent twice, once at home and once away. The team with the most points at the end of the season is crowned the champion, while the bottom teams face relegation to the lower division.