After winning six gold medals at the 2012 School Games, Ellie was competing internationally a year later. At 15, she became first female gymnast ever to win an individual all-around medal for Great Britain at the European Championships, claiming bronze in 2015. She competed in the 2016 Olympics, and picked up an All-Round gold at the 2017 European Artistic Gymnastics Championships, as well as two silvers and a bronze.