Jessica Hull says she's perfectly placed to end Australia's barren dozen years on the Olympic athletics track.
Hull has cruised through her 1500m heat in Paris on Tuesday morning to secure a semi-berth in two days' time.
The 27-year-old is thriving under the expectation of snaring Australia's first Olympic track medal since Sally Pearson's famous 100m hurdles gold at the 2012 London Games.
"I have to trust my prep, I can't fault it at all," Hull said after clocking four minutes 02.70 seconds in her heat.
"I have been healthy. I have hit every workout, I'm really fit, I have got great races behind me.
"That makes me confident. I couldn't be in a better position coming in.
"So now it's just time to unlock that."
Hull's compatriot Georgia Griffith (3:59.22) also advanced to Thursday's semis but teammate Linden Hall (4:03.89) missed out.
Hull enters Paris after a stunning past month - she set a 2000m world record in the non-Olympic event at the Monaco Diamond League meet on July 12, five days after setting a fresh Australian 1500m benchmark in Eugene.
The Wollongong-born wonder, who finished 11th in the 1500m final in Tokyo three years ago at a crowd-less stadium, revelled in her first race at the 81,000-capacity Stade de France.
"It was crazy ... I have never raced in a full Olympic Stadium like that, so it was pretty cool," Hull said.
"Standing on the start, I was just telling myself to think about my position and don't think about everything going on around me."
Hull steered well clear of trouble.
"A lot of people will say I've probably run too wide for a prelim," she said.
"But I would rather be out there and be relaxed than be on the rail and looking for exit routes ... I went on feel and I felt great.
"In previous years this is the most nerve-wracking round whereas in a way there wasn't nerves today, it was like anticipation.
"I was just ready to start and get into these like next five days ... I'm in the thick of it and ready to go."
Reece Holder rounded out a hugely promsing debut Olympic campaign by finishing fifth in his 400m semi in 44.94.
The 21-year-old went out hard on Tuesday evening, just as he had in the opening round when he clocked a huge PB of 44.53 to move to second spot on the Australian alltime list behind Darren Clark.
Holder did it tough in the final straight of the semi as Matthew Hudson-Smith claimed the win 44.07, with the prospect of much better to come down the track.
I've always had the confidence," said Holder.
"It's just that this competition has obviously made me a lot hungrier to go back and cook something up for next year.
" And it was another sub-45 (time) so all happy there."
Another Olympic first-timer, Alanah Yukich, was seventh in her 400m hurdles semi in 55.49 as big guns Sydney McLaughlin-Levrone from the US (52.13) and Femke Bol from the Netherlands (52.57) set up a much-anticipated final on Thursday.
On Tuesday morning, Brooke Buschkuehl's best long jump of 6.31 metres wasn't enough to book a berth in the final.
Australia's Cameron McEntyre's top javelin throw of 81.18m failed to move him into the final.
Tayleb Willis clocked 13.67 in the men's 110m hurdles repechage and didn't reach the semi-finals and Ellie Beer failed to progress from the women's 400m repechage, finishing in 51.65.
Calab Law didn't start in the men's 200m repechage, preferring to focus on the 4x100m relay.
