Hopkin competed for England in the
women's 4 × 100 metre freestyle relay at the
2018 Commonwealth Games, winning a bronze medal. In May 2021, at the
European Championships held in
Budapest, Hopkin won gold medals in
women's 4 × 100 metre freestyle,
women's 4 × 100 metre medley,
mixed 4 × 100 metre freestyle and
mixed 4 × 100 metre medley relays. Hopkin was named as a member of the British team to go to the postponed
2020 Olympics in Tokyo. This would be her first Olympics and she joined as part of what was considered a "high quality" swimming team. Hopkin swam the anchor freestyle leg in the
Mixed 4 x 100 metre medley relay, and won gold in a new world record time of 3 minutes 37.58 seconds together with
Adam Peaty,
James Guy and
Kathleen Dawson. In 2023, she won the gold medal at the
2023 British Swimming Championships in the
50 metres freestyle. It was the third consecutive time that she had won the 50 metres event. After winning both the 50 metres freestyle and the
100 metres freestyle at the
2024 Aquatics GB Swimming Championships, Hopkin sealed her place at the
2024 Summer Olympics. At the 2024 Olympic Games in Paris, she participated in the
women's 50 metre freestyle competition and
women's 100 metre freestyle competition, where she was eliminated in the semifinals of both. ==Awards==