ix . ▁His ▁father , ▁a ▁former ▁spr inter , ▁is ▁an ▁assistant ▁principal ▁and ▁track ▁coach ▁at ▁New ▁River ▁Middle ▁School , ▁while ▁his ▁mother ▁is ▁a ▁high ▁school ▁teacher . ▁He ▁has ▁two ▁older ▁brothers , ▁Alex ▁and ▁William , ▁who ▁also ▁were ▁track ▁run ners . ▁While ▁att ending ▁Florida ▁State ▁University , ▁D ix ▁became ▁a ▁member ▁of ▁the ▁Ph i ▁B eta ▁S igma ▁frat ern ity . ▁ ▁Personal ▁best s ▁ ▁, ▁D ix ' s ▁best ▁in ▁the ▁ 2 0 0   m ▁out do ors ▁makes ▁him ▁the ▁fifth ▁fast est ▁man ▁of ▁all ▁time , ▁while ▁his ▁ind oor ▁best ▁for ▁the ▁distance ▁makes ▁him ▁the ▁sevent h ▁fast est . ▁His ▁best ▁in ▁the ▁ 1 0 0   m ▁is ▁the ▁e ighth ▁fast est ▁by ▁an ▁American ▁ath lete . ▁▁ ▁All ▁information ▁from ▁I A AF ▁Profile ▁ ▁Major ▁competition ▁record ▁ ▁Circ uit ▁wins ▁and ▁national ▁titles ▁Diam ond ▁League ▁( 2 0 0   m ) ▁Over all ▁winner : ▁ 2 0 1 1 ▁Rome : ▁ 2 0 1 0 ▁Eug ene : ▁ 2 0 1 0 , ▁ 2 0 1 1 ▁La us anne : ▁ 2 0 1 0 ▁G ates head : ▁ 2 0 1 0 ▁D oh a : ▁ 2 0 1 1 , ▁ 2 0 1 2 ▁London : ▁ 2 0 1 1 ▁U . S . ▁Championships ▁ 1 0 0  