Unlike the other regional qualification process, a tournament did not operate as the regional qualification tournament for Rugby World Cup 2027 in Sudamérica. Instead a format between the main Sudamérica teams (excluding Argentina who had already qualified) and the four development teams was created to decide who would qualify for the World Cup. Qualification took place over three rounds with a single repechage match between the second and third rounds; •
Round 1 saw the four development Sudamérica nations (
Colombia,
Costa Rica,
Peru and
Venezuela), play in a straight knock-out format with the winner advancing to the Round 3 repechage match against the bottom placed side in Round 2. •
Round 2 saw the evolving Sudamérica nations
Brazil,
Chile and
Paraguay play in a round robin format with the top two sides advancing to Round 3 directly, whilst the bottom placed side progressed to the Round 3 repechage match against the winner of Round 1. •
Round 3 saw the top two sides from Round 2 and the winner of the Round 3 repechage match join the highest remaining ranked Sudamérica team,
Uruguay, in the final stage of qualification. The third round will start with a home and away two-legged semi-final play-off series (seeded by 1 v 4 and 2 v 3), with the two winners progressing to the Sudamérica 1 play-off series and the two losers advancing to the Sudamérica 3 play-off series. • The winner of the Sudamérica 1 series on aggregate over the two legs played home and away, qualified for the World Cup as Sudamérica 1, whilst the loser advanced to a cross-regional play-off series against
Pacific 4 in a
Pacific / Sudamérica play-off series to qualify for the World Cup. • The winner of the Sudamérica 3 series on aggregate over the two legs played home and away, progressed to the Final Qualification Tournament, as did the loser of the Pacific / Sudamérica play-off series. ==Entrants==