Bermuda’s Olympic triathlon gold medallist Flora Duffy signed off for the year by storming to a record sixth Xterra World Championship title in Kapalua here on Sunday, beating her closest rival by more than seven minutes. Duffy, 34, who won gold at this year’s Summer Olympics in Tokyo, led every leg on the way to successfully defend her crown and add another world title to her name. Last year’s race was cancelled because of the coronavirus pandemic. Duffy completed Sunday’s race – reduced to a duathlon because of rough ocean waves – won in two hours, 39 minutes and 49 seconds, well clear of Lo…