The 23-year-old was red-hot on a cool evening in Sydney, blowing away the field to win in 10.09 seconds.

With the automatic qualifier of 10.05 already in his keeping, Browning is guaranteed a start in Tokyo and he has no intention of just making up the numbers.

"You've got to be able to do it on an average day if you want to be competitive at the top level so I am very happy with that one," he said.

"... You've got to run a bit quicker than 10.09, you probably have to run 10.05 or under that, but it is going to be a lot warmer than this in Tokyo and it will be an Olympics so you'd expect to lift.

"It doesn't feel like elation, more like meeting an expectation that I set for myself at the start of the year.

"I wanted to be the national champ, I wanted to get the automatic selection, I want to go to the Olympics and I want to make the final and be competitive.

"That's what it is all about."

Browning celebrated becoming the first Australian man in 17 years to book a spot in the Olympic 100m field with a post-race beer - his first in several months.

Hana Basic's preferred tipple is gin and tonic and she plans to knock back a few on Saturday night after justifying her pre-event favouritism to win the women's 100m in 11.23.

The time was eight hundredths of a second shy of the automatic qualifier of 11.15, but the 25-year-old is confident of ticking that box in the next three months.

"I am so excited - it's such a huge relief," said Basic after claiming her first national title.

"I knew I could do it and now I have done it.

"I have proven it to myself and my coach and the rest of Australia."

National record holder Linden Hall locked in her spot in the Games team with a convincing victory in the 1500m.

A couple of weeks after becoming the first Australian woman to dip under four minutes for the metric mile, Hall controlled the race from the front to win in 4:07.56.

Bendere Oboya celebrated her 21st birthday in style with an equally impressive win in the women's 400m in 52.20.

She also guaranteed her position on the Olympic team, as did Nina Kennedy in the pole vault.

Kennedy soared over the bar at 4.75m before having three cracks at what would have been a new national record of 4.85m.

Reigning javelin world champion Kelsey-Lee Barber was thrilled to rediscover her mojo after a recent crisis of confidence.

Barber's best throw of 61.09m was her biggest since winning the world title in Doha in 2019 as she finished second behind Commonwealth champion Kathryn Mitchell (63.34m), with the promise of much better to come.

Australian Associated Press