All-Star Weekend: Simons Makes Slam Dunk Statement Portland Trail Blazers' Anfernee Simons became the first player in franchise history to win the AT&T Slam Dunk Contest. via: Kevin Cox / Getty Images. Three young NBA players had a tough task coming into this year's AT&T Slam Dunk Contest, and it was to try and follow up last season's dunk contest won by Derrick Jones Jr. Indiana Pacers' Cassius Stanley, New York Knicks Obi Toppin and Portland Trail Blazers' Anfernee Simons made sure to put on a show in Atlanta. Although it was a shorter dunk contest than previous years, the players still went to the