The season began on 29 March and concluded on 17 August with grand final day for both the men's and women's seasons.
[1] The NBL1 in 2019 was a single league and consisted of one conference run by Basketball Victoria.
The teams, mostly from Victoria and Tasmania, would go on to make up the NBL1 South in 2020 after the inclusion of multiple new conferences.
Basketball Victoria introduced a new senior elite league in 2019 called NBL1 after partnering with the National Basketball League (NBL).
[2][3][4] The former teams from the South East Australian Basketball League (SEABL) were part of the inaugural NBL1 season, while Eltham Wildcats, Knox Raiders, Ringwood Hawks and Waverley Falcons joined from the Big V.[2] The 2018 SEABL champions, the Hobart Chargers, chose not to enter the NBL1 in 2019.