All-but unbeatable for over a year, Matt Hauser reckons he can find another gear to challenge for a hoodoo-busting men's Olympic triathlon medal in Los Angeles.

The Queenslander will defend his Noosa Triathlon title on Sunday at the world's biggest Olympic distance event.

The 28-year-old romped to Australia first men's World Triathlon Championship Series title in 20 years in October last year and backed it up in 2026 with wins in Yokohama, Hamburg, London and Spain's Pontevedra final in September.

His last genuine loss over sprint or Olympic distance racing came in September last year, with only bike crashes stopping him from crossing the line first since his world title triumph in Wollongong and relegating him to second in his world title defence this year.

He's beaten British star Alex Yee and New Zealand's Hayden Wilde this year. The pair are considered the benchmark after their ding-dong battle for gold in a Paris Games race in which Hauser finished seventh.

No Australian man has ever won an Olympic medal in triathlon and Hauser, as well as compatriot and fellow former Noosa Triathlon champion Luke Willian - eighth on the WTCS standings this year - need no reminding.

"It's been a good run but I'm just wanting to make the most of it and I know there's always room for improvement," Hauser, who has found extra pace on his run leg this year, told AAP.

"I have to keep reinventing myself and Alex said recently that the Paris Alex won't win in LA.

"Luke and I, at 30 and 28, we are at the peak of our powers, it's important to strike while the iron is hot.

"This year I just wanted to continue the form, keep it fun and take another step on the journey to the ultimate goal that we're targeting."

Willian has notched three-straight top-10 series finishes and ran his fastest 5km time off the bike - 14 minutes, three seconds - this year in a sign he's no fading force ahead of a potential second Games appearance in 2028.

"Like a fine wine," Willian, third in Noosa last year, laughed.

Qualification for the LA showpiece has already started and is set to be another tightly-fought affair with the likes of Brandon Copeland, Brayden Mercer and Callum McClusky all jostling for a maximum of three spots.

"Matt set the standard, I upped it and he's upped it again and you can sense it, it's going to be really competitive and everyone's coming fast," Willian said.

The mixed teams event will also provide a medal opportunity for Australia, who hope to fare better after two disappointing efforts since its Games debut in Tokyo.

"The better we race individually ... the rising tide lifts all boats," Willian said.

"We all back each other and support each other and that helps us individually."