The 25th Cuban National Series was the first to feature four-team-playoffs with the first- and second-place teams from each of the new Western and Eastern zones.
Four teams qualified for the playoffs: Industriales, Vegueros, Santiago de Cuba and Villa Clara. Industriales went undefeated in the round-robin tournament, earning their sixth National Series title.
References
1985–86 Cuban National Series Wikipedia(Text) CC BY-SA