Format
In 1998 and 1999, twelve teams played in the competition. The teams were divided in three groups of four teams each. The matches were played in two legs. The group winners and the best runner-up qualified for the semifinals. The semifinals were played in two legs, as well as the finals. In 1999, the Bolivian teams played a qualifying playoff before the first phase of Copa Merconorte.
In 2000 and 2001, sixteen teams played in the competition. The teams were divided in four groups of four teams each. The matches were played in two legs. The group winners qualified for the semifinals. The semifinals and the finals were played in two legs.
Read more about this topic: Copa Merconorte