College Hoops Grayson Allen’s 360 Dunk at Countdown to Craziness (Video) Grayson Allen rarely disappoints with his dunks. @graysonjallen kills his first dunk! A video posted by Duke Basketball (@dukeblueplanet) on Oct 10, 2014 at 7:06pm PDT 1st dunk, 1st try, slayed. Share This Previous ArticleDarrell Wallace Jr. Makes Magic at Martinsville Next ArticleMartinsville Goes Pink for Breast Cancer Awareness (Photos) October 25, 2014
