Dec 12 (Reuters) - Britain's Kate Waugh delivered the performance she needed on Friday to claim victory in the T100 Triathlon World Championship Final in Qatar and seal her first-ever world title in the sport in dramatic fashion.

The 26-year-old entered the season-ending showdown in Lusail at the top of the T100 Race To Qatar rankings, and knowing a victory would guarantee her the crown and $200,000 prize money.