Sheffield made her
World Para Swimming Championships debut at the
2023 World Para Swimming Championships. She won a bronze medal in the
100 metre backstroke S14 event, in a Great Britain podium sweep. She again competed at the World Championships in
2025 World Para Swimming Championships and won a bronze medal in the
100 metre backstroke S14 event, again in a Great Britain podium sweep. She also won a gold medal in the
mixed 4 × 100 metre freestyle relay S14 event with a championship record time of 3:41.14. ==References==