Marcos Giron captured his first ATP title on Sunday, defeating fellow American Alex Michelsen 6-7 (4/7), 6-3, 7-5 to win the Hall of Fame Open final.Michelsen, ranked 61st, saved two break points in the 11th game for a 6-5 edge on the way to a tie-breaker, in which Michelsen seized a 5-1 edge and cruised home, taking the set after 59 minutes on a forehand winner.