The first NBA basketball game played at the new arena was an NBA preseason game between the Nets and the Washington Wizards on October 15, 2012.

The first regular season NBA game at the Barclays Center took place on November 3, 2012, when the Nets beat the visiting Toronto Raptors 107–100.
The originally scheduled season opener home game was supposed to take place on November 1 against now-cross town rivals the New York Knicks, in what was planned to be a historic event; however, the game was canceled by NYC Mayor Michael Bloomberg due to mass transportation outages and a shortage of available police caused by Hurricane Sandy.

The venue hosted the NBA Draft starting with the 2013 NBA draft on June 27, 2013 and will remain as the host for the 2017 NBA Draft.
In addition to that, they have also hosted the 2015 NBA All-Star Weekend festivities on February 13–14, 2015.

Barclays Center was also the home for the Long Island Nets of the NBA Development League, now the NBA G League, during the 2016–17 season while the Nassau Veterans Memorial Coliseum was being renovated for the 2017–18 season.
The first NBA basketball game played at the new arena was an NBA preseason game between the Nets and the Washington Wizards on October 15, 2012.
The first regular season NBA game at the Barclays Center took place on November 3, 2012, when the Nets beat the visiting Toronto Raptors 107–100. The originally scheduled season opener home game was supposed to take place on November 1 against now-cross town rivals the New York Knicks, in what was planned to be a historic event; however, the game was canceled by NYC Mayor Michael Bloomberg due to mass transportation outages and a shortage of available police caused by Hurricane Sandy.
The venue hosted the NBA Draft starting with the 2013 NBA draft on June 27, 2013 and will remain as the host for the 2017 NBA Draft. In addition to that, they have also hosted the 2015 NBA All-Star Weekend festivities on February 13–14, 2015.
Barclays Center was also the home for the Long Island Nets of the NBA Development League, now the NBA G League, during the 2016–17 season while the Nassau Veterans Memorial Coliseum was being renovated for the 2017–18 season.
Barclays Center