Competing rallies have generally had short and intermittent histories within the championship, although Brazil's
Rally de Erechim and Uruguay's
Rally del Atlantico have been in almost every championship. Host nations have kept relatively constant; Brazil and Paraguay have hosted events in every championship, Bolivia and Uruguay all bar one and Argentina has only missed two years. Chile and Peru, former regulars have not hosted events since 2009 and 2010 respectively. Paraguayan
Gustavo Saba is the most successful in Codasur history with three consecutive titles from 2011 to 2013 and another three from 2016 to 2018. Argentine drivers Roberto Sanchez and
Raúl Martínez have each won the championship twice as has Paraguayan driver
Diego Domínguez. The championship had been dominated by drivers in Group N Mitsubishis and Subarus until R5 became more widely used, with Škoda Fabia and Ford Fiesta R5 cars now holding the most wins. The region has a strong history in Group N with Uruguayan
Gustavo Trelles and Argentinian
Gabriel Pozzo both winning the
Production World Rally Championship forerunner about the time of the creation of the Codasur championship. The 2019 championship took in events held in Argentina, Paraguay, Brazil, Bolivia and Uruguay. The 2020 and 2021 championships were cancelled as a consequence of the COVID-19 pandemic. ==List of events==