The 2018 State Basketball League season was the 30th season of the State Basketball League (SBL). The regular season began on Friday 16 March and ended on Saturday 28 July. The finals began on Friday 3 August and concluded with the women's grand final on Friday 31 August and the men's grand final on Saturday 1 September.
The 2018 SBL Pre-Season Blitz was held at Warwick Stadium over Saturday 3 March and Sunday 4 March.
The regular season began on Friday 16 March and ended on Saturday 28 July after 20 rounds of competition. Easter games in round 3 were again scheduled for Thursday night, with all teams then on a break over the long weekend. Anzac Round took place in round 6 of the competition with the Kalamunda Eastern Suns and Willetton Tigers continuing their Anzac Day game tradition. There was also Women's Round in round 9, Rivalry Round in round 12, and Heritage Round in round 16.
Men's ladder
Women's ladder
The finals began on Friday 3 August and consisted of three rounds. The finals concluded with the women's grand final on Friday 31 August and the men's grand final on Saturday 1 September.
The 2018 SBL All-Star games took place at Bendat Basketball Centre on Monday 4 June, with all proceeds going to Red Frogs Australia.
The 2018 Basketball WA Annual Awards Night was held on Saturday 8 September at Crown Perth.