 Each tie was played on a home-and-away two-legged basis, but if the first match was won by the team of Primera B Nacional (who also played the first leg at home), there was no need to play the second.If instead, the team from the Regional leagues wins the first leg, the second leg must be played, leg that, if its won by the team of Primera B Nacional, a third leg must be played, if the third leg finishes in a tie, the team from Primera B Nacional remains on it.This season, Racing (C) had to defend their spot in Primera B Nacional against General Paz Juniors, from the Liga Cordobesa de fútbol, and Atlético de Rafaela had to defend their spot in Primera B Nacional against 9 de Julio (R), from the Liga Rafaelina de fútbol.