Overview
The 36 teams of theNationalliga A
Qualification phase
The qualification stage of the NLA began on 25 July 1990 and was completed on 16 December. The top eight teams in the qualification phase would advance to the championship group and the last four teams would play against relegation.Table
Results
Championship group
The first eight teams of the qualification phase competed in the Championship round. The teams took half of the points (rounded up to complete units) gained in the qualification as bonus with them. The championship group began on 3 March 1991 and was completed on 12 June.Table
Results
Nationalliga B
Qualification phase
The qualification of the NLB began on 25 July 1990 and was completed on 22 December. The top six teams in each group were qualified to play in the two promotion/relegation groups. The bottom six teams in each group then played in the newly drawn groups against relegation.Table group East
Table group West
Promotion/relegation round NLA/NLB
The promotion/relegation stage began on 2 March 1991 and was completed on 12 June.Table group A
Results
Table group B
Results
Relegation round NLB/1. Liga
The last six teams in each of the two qualification phase groups competed in two relegation groups against relegation to the 1. Liga 1991–92. The teams received ranking bonus points from their qualifying groups (7th place 6 pts; 8th place 5 pts; 9th place 4 pts; etc). There was to be one direct relegation in each group, plus a play-out against relegation between both second last placed teams. The relegation stage began on 17 March 1991 and was completed on 25 May.Table group A
Table group B
Relegation play-out
The two legged play-out against relegation between both second last placed teams was played on 1 and 8 June 1991. '' Montreux-Sports won 4–3 on aggregate. Glarus were originally relegated, however, because Montreux-Sports had their license revoked, Glarus remained in NLB 1991–92 and Montreux-Sports were demoted to the 1991–92 1. Liga.''Further in Swiss football
* 1990–91 Swiss Cup * 1990–91 Swiss 1. LigaReferences
Sources