SOME of Australia's finest athletes will battle it out at Coolum Beach on Sunday for round five of the Nutri-Grain Ironman Series and Telstra Ironwoman Series.
Given Sunday's event is the penultimate round of the series, and the dramatic and surprise wins by Kendrick Louis and Maddy Dunn last week, a large crowd is expected to watch the action.
Coolum Surf Life Saving Club captain Fred Stokes said it was great to have the series again at Coolum.
"Our beach conditions and many viewing spots are a fantastic showcase of not only our sport's greatest athletes but also of our fantastic location as it is beamed nationwide as part of the television broadcast."
"We are proud to be able to continue hosting events such as the Nutri-Grain, Surf Boat and IRB series. They not only give the opportunity for our aspiring members to view and compete in high-level competition on our own beach, but also provide extra busy periods for our local businesses, many of whom are keen supporters of our club."
The last round win by Louis featured one of the greatest comebacks in Ironman history, with the 22-year-old flying home from 17th position to claim his first win of the 2012-13 series at Surfers Paradise, Queensland.
"I don't even know what happened, I was coming last," he said.
"I honestly can't believe where I came from to where I finished, it shows it's never over until it's over.
"Shannon (Eckstein) and Ky (Hurst) are my idols and to race to the finish line with them is unbelievable."
Louis trails Eckstein by 40 points heading into Sunday's round.
Dunn also stunned beachgoers at Surfers Paradise last week when she tamed powerful surf and many of her idols to claim one of the biggest wins in a major upset.
But she will not let the remarkable triumph go to her head in the lead-up to round five on Sunday.
"I've got to get that last race out of my mind and think about competing at Coolum," she said.
The 18-year-old said she didn't feel any extra expectation after the breakthrough result which catapulted her into fourth place in the ironwoman standings.
"It's only my first time in the series," she said. "I just want to go out there and have fun."
The Ironwoman begins at 11.30am and Ironman at 1.30pm. The junior ironman final will be held at 12.40pm.