The Clausura tournament was played in a two-round all-play-all system, with the champion being the team with the most points at the end of the two rounds.
Since Libertad won both the Apertura and Clausura tournaments they were declared as the national champions and no playoff game was played.
Two games were played to determine the 2003 championship runners-up between Olimpia and Guaraní, who finished in second place in the Clausura and Apertura respectively.
Tacuary finished second-to-last in the aggregate points table, so had to participate in the promotion play-off game against second division runners-up 3 de Febrero.
The following table lists all the games played by the Paraguay national football team in official competitions during 2003.