Top Australian men's sprinter Matthew Glaetzer has dominated day one of the International Track Series cycling event in Melbourne.
Glaetzer continued his unbeaten three-year domestic run in match sprinting, qualifying fastest at the Joe Ciavola velodrome and beating Rio Olympics hopeful Shane Perkins in the final.
Compatriot Stephanie Morton also qualified fastest in the women's sprint and won the first heat in the final against Hong Kong star Wai Sze Lee.
But Lee took the next two heats to secure the win as Australian Kaarle McCulloch finished third.
While Glaetzer is a certain Rio selection, Perkins is making a last-ditch bid to forced his way into the Olympic team.
Perkins, a London Olympian, has been out of the national program since late last year.
Australia will take two women to Rio for their sprint events and at the moment, Morton is most likely ahead of McCulloch to join Anna Meares.
The ITS runs until Sunday and Meares opted out of day one.
Glaetzer qualified fastest with a scorching 9.793 seconds and Perkins was the only other rider to go under 10 seconds for the flying 200m with 9.993.
"I was really happy with that time, it was a bit of a hoping goal to get that 9.7," he said.
"It's all tracking along well with where we are positioned in our training phase, it's really encouraging to see how we're performing at this point."
Glaetzer then progressed smoothly to the sprint final and beat Perkins two heats to nil.
"Perko is always hard to beat, he is a really quality racer and it takes your best to beat him," Glaetzer said.
"Huge respect to him, he's such an authoritative figure in the world of sprint cycling.
"It is a great opportunity to come up against that quality an opponent, because that's what you need, you need to be pushed.
"So it's good to get that racing that you know you need to absolutely commit everything to get the win."
Pat Constable, another Rio hopeful, finished third.
Morton qualified fastest in 10.793 and while she lost the final, it was the first time the Australian had taken a heat off Lee.
"That is a big step for me, she is such a classy rider," Morton said.
The elite men and women will compete in the keirin on Thursday, with Meares set to join the racing.