Within each group, the teams would play a double round-robin to decide their league position.
The four group winners and the four runners-up then contested a play-off round to decide the three promotion slots.
The four third-last placed teams would compete a play-out against the ninth relegation spot.
ES FC Malley win 7–4 on aggregate and continue to the finals.
ES FC Malley win 2–1 on aggregate and are promoted to 1986–87 Nationalliga B[6].
The four third-last placed teams from each group, competed a play-out against the ninth and last relegation spot.