The NBA 2K26 Summer League begins on Thursday in Las Vegas, an event featuring all 30 teams. But it's not the only summer pro competition showcasing the NBA's top young talent, as a pair of 4-team round robins ended Tuesday in Salt Lake City and San Francisco.

Walter Clayton Jr. starred in Utah's third win at the Salt Lake Summer League. The national champion at Florida led the Jazz with 20 points to take down Nikola Topic and the Thunder. Kyle Filipowski produced an 18-point, 16-rebound double-double to complement Clayton's scoring outburst. Ajay Mitchell led the Thunder with 19 points.

Catch the summer league action tonight at 10 p.m. ET on ESPN as both 1-1 teams meet in San Francisco with multiple streaming options available.

Dalton Knecht and the Los Angeles Lakers face off with Dylan Harper and the San Antonio Spurs as the NBA Summer League California Classic continues tonight.

The full, 30-team NBA Summer League won't start until next week, but the California Classic and Salt Lake City Summer League act as sort of an opening act for the main event in Las Vegas. Both start today and run through Tuesday,

Since the inception of the NBA, the offseason has primarily been about teams building their rosters for the next season and players resting after a long, grueling season. However, more recently, it has been about player development and showcasing talent for about two weeks with the NBA Summer League.