The silver jubilee 25th season of the Cuban National Series was the first to feature a scheduled postseason,[a] as the first-place and second-place teams from each of the new Eastern and Western divisions qualified for a round-robin tournament to determine the league champion. The 18 teams in the league remained unchanged from recent seasons, but each team's regular-season schedule was reduced from 75 games to 48 games.[b]
Advancing to the playoffs were Industriales, Vegueros, Santiago de Cuba and Villa Clara. Industriales went undefeated as they swept their competitors, clinching their sixth league title via a walk-off home run by Agustin Marquetti in extra innings against Vegueros on January 19, 1986, in front of their home fans.[1]
"Cronología: 1986" (in Spanish). Archived from the original on February 26, 2005. Retrieved 2006-10-11. (Note - text is printed in a white font on a white background, depending on browser used.)