All eyes are on London this weekend for the Triathlon World Championship Grand Final in London.
An excited team of 278 athletes will go head-to-head with the best in the world as they battle it out on the historic Olympic course in Hyde Park.
More than 300,000 spectators are expected to line the streets to cheer on 8,500 entrants from 86 countries.
Team Ireland has the sixth highest participation, making history as the largest Irish sporting group to compete at a world games.
Racing with the elites are Aileen Reid, currently ranked 11th, and Bryan Keane, ranked 46th.
This marks the grand final of a tour of seven events, with mixed successes for both athletes, including podium finishes.
Pressure will be on European Champion Kevin Thornton in the 25-29 Standard distance.
"It's a stacked field and I'm hoping to get around a technical course and remain competitive in a tough age group," he said after his final National Series sprint victory at Lough Key on Sunday.
Brother and sister Russell and Rebecca White from Banbridge, Co Down, will be going for gold in the sprint and aquathlon.
And although most will be competing for the honour, hopefuls to watch out for are Máire-Triona Keane (30-34 Standard), Elizabeth Lee (30-34 Aquathlon), Brian Harris (35-39 Sprint) and Pete Wedderburn (50-54 Standard).