The 2026 Liga Sudamericana de Básquetbol, or 2026 FIBA South American Basketball League, was the 29th season of the Liga Sudamericana de Básquetbol (LSB), the second tier of basketball in South America organised by FIBA Americas. The season began on 2 October and ended on 6 December 2026.
Ferro Carril Oeste were the defending champions, but they did not defend their title since they qualified for 2026–27 Basketball Champions League Americas.
Team allocation The list of teams was confirmed on 2 September 2025 by FIBA.
1st, 2nd, etc.: Position in national league WC: Wild card
Boca Juniors Brasilia Colegio Los Leones Olimpia Kings Regatas Corrientes Corinthians Paisas San José Oberá TC Flamengo CD Jorge Guzmán Nacional Independiente Mogi das Cruzes Importadora Alvarado Defensor Sporting
Format In the group phase there will be four groups of four teams. All team will play each other once, for a total of three games per team. The top two ranked teams will advance to the Quarterfinals. In the Quarterfinals, two new groups will be formed, Groups E and F. The qualified teams from Groups A and B will make up Group E, while those from Groups C and D will compete in Group F. There, teams will once again face each opponent once. The top two from each group will move on to the Final 4. The winners of the Semi-Finals in the Final 4 will play for the championship, while the losing teams will battle for third place.
Group A The games of Group A were played from 2 to 4 October 2026 in Oliva, Argentina.
Group B The games of Group A were played from 9 to 11 October 2026 in Loja, Ecuador.
Group C The games of Group A were played from 16 to 18 October 2026 in Brasília, Brazil.
Group D The games of Group A were played from 23 to 25 October 2026 in Rio de Janeiro, Brazil.
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