Vince Carter says he could compete in 2017 NBA Dunk Contest Posted Oct 18, 2016 He's not ruling it out. There are more wild dreams out there than the possibility of 39-year-old Vince Carter coming back to compete in the 2017 NBA Slam Dunk Contest. Asked if it would be possible for him to win the contest in 2017, the Memphis Grizzlies vet told WeDontBluff.net he thinks he could give young dunkers like Zach LaVine a run for their money. (FOX Sports)