Kenny Selmon Runs Fifth-Fastest 400-Meter Hurdles In The World; Best In Nation Posted Apr 14, 2018 Kenny Selmon ran the fastest time in the nation and the fifth-fastest time in the world in his season debut in the 400-meter hurdles, and Brianna Duncan broke yet another UNC sprints record at the Hurricane Collegiate Invitational at the University of Miami Saturday. Selmon's debut did not disappoint, as he smoked the competition and clocked 49.00. (GoHeels.com)