The shooting happened around 10:00 p.m. near B Street and Olney Avenue.
Officers arrived to find the 18-year-old male victim suffering from a gunshot wound. He was taken to Albert Einstein Medical Center where he was pronounced dead a short time later.
Authorities say there were at least 12 people on the court at the time of the shooting.
No word yet on what may have sparked the incident.
Police continue to investigate.