Promotion play-off The three group winners played a single
round-robin to decide the two promotion slots. The promotion play-offs were held 14 and 21 and 28 June 1953.
Thun are 1. Liga Champions and together with runners-up
Yverdon-Sport were promoted to
1953–54 Nationalliga B.
Relegation play-out The three second last placed teams from each group contested a play-out to decide the fourth and final relegation slot. The matches in the play-outs were held on 21, 28 June and 5 July.
FC Moutier und US Lausanne remained in the division, FC Wetzikon were relegated to
2. Liga. ==Further in Swiss football==