She won the Heptathlon gold medal in the 2012 London Olympics and broke the British national record for the high jump and the 100 meter hurdles.
She won the high jump at the National Schools Championship at the age of fourteen, becoming a National Schools Champion.
She won gold medals in the World Championships, World Indoor Championships, and European Championships.
In high school, her mother performed the high jump and her father was a sprinter. She has a younger sister named Carmel. In 2013, she married Andy Hill.