The Liga Pro Ecuador Serie A, simply known as the Liga Pro or the Serie A, or as Liga Pro Ecuabet for sponsorship reasons, is a professional association football league in Ecuador and the highest level of the Ecuadorian football league system. Contested by 16 clubs, it operates a system of promotion and relegation with the Serie B, the lower level of the Primera Categoría. The season runs from February to December and is usually contested in multiple stages.