The 2017–18 Swiss Basketball League (SBL) season was the 87th season of the top tier basketball league in Switzerland.
The six first qualified teams will join the group for places 1 to 6 while the other six teams will play the group for places 7 to 12.
These two groups will be played with a one-legged round-robin format, where all teams from group 1 to 6 and the two first qualified teams from the group for the seventh position will be qualified for the playoffs.
[1] BBC Lausanne did not continue playing in the SBL and was replaced by Pully and Vevey Riviera.
Seeded teams played at home games 1, 2, 5 and, in the finals, 7.