The longest-running baseball tournament in Puerto Rico, Clase A, begins its postseason on October 4, with 50 out of approximately 80 participating teams advancing to the final phase. The tournament is divided into the Atlantic Division and the Caribbean Division. The team with the best regular season record in the Atlantic Division is La Barriada Sandín of Vega Baja, with a 14-2 record.
The Caribbean Division features the defending champions, Jueyeros de Jauca of Santa Isabel. The Secretary of the Department of Recreation and Sports, Héctor Vázquez Muñiz, expressed confidence in the collaboration of all franchises to have a successful postseason, despite recent speculation about controversies surrounding arbitration. Vázquez Muñiz stated that the issue was addressed in a timely and responsible manner and that everything is ready to continue according to the established calendar.