The 2021 NBA Summer League was an off-season competition held by the National Basketball Association (NBA) at the Thomas and Mack Center and Cox Pavilion in Las Vegas, Nevada on the campus of University of Nevada, Las Vegas.
The event concluded with the 2021 NBA Summer League Championship game on August 17.
The California Classic is an official summer league of the NBA—the third year it has been held.
[3] Six games were played in a round-robin format over the course of three days on August 3, 4, and 6 at the Vivint Smart Home Arena.
The league plays games across two venues: the Thomas and Mack Center and Cox Pavilion, both located in Paradise, Nevada (near Las Vegas).