Alice Ingley admits she felt the pressure of being the first Australian to compete in an individual event at the Tokyo Olympics.
The Brisbane-based archer from Western Australia went to the shooting line 11 hours before the Olympic Ceremony was due to get underway at the Tokyo Olympic Stadium on Friday night.
Ingley finished the women's individual ranking round in a disappointing 57th place with a score of 616 points.
"I was aware of that and it made it different to Rio," said Ingley of being being the first Australian athlete to compete in an individual event in Tokyo.
"I definitely felt it. The first few points were a roller-coaster.
"But then there's nothing like the Olympics. It's not like any world event."
With 64 archers in the Tokyo field, Ingley now faces Ksenia Perova in the first elimination stage next Thursday.
The Russian Olympic Committee archer finished eighth in the ranking round with a season-best score of 664.
The temperature in Tokyo was already touching 30 degrees centigrade as the competitors arrived for the 9am start.
Ingley said: "I'm not happy with my performance and it was a lower score than I wanted.
"It was hot but there was also a tricky wind.
"It wasn't a gust, but it was still challenging and you had to pick different shooting lines.
"But matchplay is completely different, you've got to change your timing and make shots a lot quicker."
The heat caused Russian Svetlana Gomboeva to faint and collapse as she checked her final scores, getting assistance before being carried off on a stretcher.
Teammate Perova said later that Gomboeva was recovering well and would be able to resume competition.
"Everything is fine with Sveta now," she said.
South Korea took the top three places with An San posting a new Olympic-record score of 680.
San shot 36 10s and 16 Xs to break the 1996 mark of Ukraine's Lina Herasymenko by seven points, while Jang Minhee and world record-holder Kang Chaeyoung finishing second and third on 677 and 675 points respectively.
Australian trio David Barnes, Ryan Tyack and Taylor Worth were to contest the men's individual ranking round on Friday afternoon.
Australian Associated Press