Anderson attended Carine Senior High School and trained at the Breakers Swim Club before moving to the Western Australian Institute of Sport in Perth.
Anderson won silver in the 100-meter backstroke and gold in the 50-meter backstroke at the 2023 Junior World Championships. She won another gold medal with the 4 x 100-meter medley relay.[2][3] She received a silver medal for her participation in the 4 x 100-meter mixed medley relay. In both relays, she was only used in the preliminary rounds; Jaclyn Barclay swam in the finals.[4]
At the 2024 World Championships in Doha, Claire Curzan won the 100-meter backstroke competition with a lead of 0.83 seconds. Anderson finished second, 0.06 seconds ahead of Canadian Ingrid Wilm. Barclay finished fourth, 0.10 seconds behind Wilm.[5][6] In the 50-meter backstroke, Curzan won by 0.02 seconds ahead of Anderson, while Wilm was 0.16 seconds behind Anderson and also received bronze.[7][8] The Australian 4 x 100-meter medley relay team, consisting of Barclay, Abbey Harkin, Alexandria Perkins and Brianna Throssell, qualified for the final with the third fastest preliminary time. In the final, Anderson, Harkin, Throssell and Shayna Jack were five seconds faster than the preliminary relay team and won ahead of the Swedes and the Canadians.[9]
Anderson finished second in the 100-meter backstroke at the 2024 Australian Championships and won the title with the 4 x 100-meter freestyle relay.[10]
