More than 2,700 competitors are set to line up alongside the female professional triathletes on Tenby's North Beach for the 140.6 mile triathlon on Sunday.
Locals living in Wales's prettiest seaside town are proud of the fact its beach has been ranked among the top 12 in the whole world.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback