Apertura and Clausura
（重定向自Clausura）
![Apertura and Clausura tournaments during calendar year
Apertura and Clausura starting in the second half of calendar year and finishing at the first half of following year
Apertura and Clausura are only parts of a larger tournament.](/Images/godic/202501/04/AperturaClausura.svg3208.png")
The Apertura [aperˈtuɾa] and Clausura [klawˈsuɾa] tournaments are a relatively recent innovation for many Latin American football leagues in which the traditional association football season from August to May is divided in two sections per season, each with its own champion. Apertura and Clausura are the Spanish words for "opening" and "closing". In French-speaking Haiti, these are known as the Ouverture and the Fermeture, while in English-speaking Belize, they are respectively the "Opening" and "Closing" seasons. The North American Soccer League (NASL), the second-level league in both the United States and Canada, adopted a split season in 2013; the season is divided into a "Spring Championship" and "Fall Championship".