The Vietnamese National Championship, also known as the V.League 1, is the top professional football league in Vietnam. Established in 1980, it features clubs from across the country competing for the championship title. The league operates on a promotion and relegation system with the V.League 2, allowing teams to move between the two divisions based on their performance. The season typically runs from February to October, with each team playing home and away matches. The team with the most points at the end of the season is crowned the champion. The league has grown in popularity, showcasing local talent and attracting international players.