2016 Olympics (Rio de Janeiro, Brazil)
Throssell finished eighth in the 200 fly (2:07.87), making the finals with the seventh best time from the semifinals (2:07.19).
2019 World Championships (Gwangju, Korea)
Throssell swam the third leg of Australia’s world record setting gold medal 4×200 free relay team (7:41.50). Throssell (1:55.60) followed Ariarne Titmus and Madison Wilson and ahead of Emma McKeon.
She also was part of the Aussies’ championship record setting 4×100 free relay team (3:30.21), swimming the second leg. Throssell (53.34) was joined on the 4×100 by Bronte Campbell, Emma McKeon and Cate Campbell.
Individually, Throssell finished fifth in the 100 fly (57.09) and eighth in the 50 fly (26.11). Throssell made the semifinals of the 200 fly, placing 11th in the heats, but gave up her spot.
2020 Olympic Games
In Tokyo, Throssell has a busy schedule. She started her meet with the 100 fly individually, where she placed 12th overall at 57.59. Throughout the meet she swam prelims of both the mixed 400 medley relay and the 800 free relay, both of which went onto win bronze in the final. She swam the 200 fly individually later in the meet, where she made the final and ultimately placed 8th in 2:09.48.
Throssell rounded out her meet on the last day in the 400 medley relay prelims, swimming fly in the morning effort as the finals relay went on to win the event, netting Throssell her first Olympic gold.
2022 World Championships
Throssell had a busy meet for team Australia in Budapest, pulling relay duties and competing in individuals. She swam prelims of the 400 free relay on day 1, which would go on to win gold in the final. On day 2, she swam in the final of the 100 fly, where she touched at 56.98 for 6th place. On day 4, she swam the butterfly leg in the prelims of the mixed 400 medley relay, which went on to win silver. On day 5, she competed in the 800 free relay prelims which went onto win silver in the final. On the last day of competition, Throssell swam on the final of the 400 medley relay, splitting 57.19 on the fly leg and aiding Australia to a silver medal.
2023 World Aquatics Championships (Fukuoka, Japan)
In the 100 fly, Throssell was a solid 57.94 in prelims for 9th. In the same prelims, she split a 53.95 on the prelims 400 free relay, a bit off by her standard. In the 100 fly semifinal that night, Throssell was better with a 57.14 for 6th and the finals squad broke the 400 free relay world record and claimed gold. The following evening, she was 57.34 for 7th in the 100 fly. Throssell was the fastest split on the prelims 800 free relay squad with a 1:56.31 to earn the single spot on the finals squad. there , she was half a second faster in 1:55.80 on the 3rd relay leg to help destory the world record in 7:37.50.
Throssell missed the 50 fly semifinal with a 26.30 for 18th. As the #2 Aussie 100 flyer, she put up a 57.72 on the prelims 400 medley team. The finals squad won silver.
2024 Australian Olympic Trials (Brisbane, Australia)
After missing out on the team in the 100 fly by just .09 seconds for 3rd behind Alexandra Perkins with a 57.42, Throssell returned in the 200 free. She was 5th in prelims with a 1:56.89, just behind a different Perkins, Jamie Perkins. In the final, all eyes were on Titmus and O’Callaghan as both dipped under the WR but Throssell had an achievement of her own in the final. After splitting 27.24/29.57 for a 56.81 at the 100, Throssell was back in 6th at the 100 but used strong splits of 29.70/29.23 over her back half to touch in 4th and qualify for her 3rd straight Olympics in a new PB.