At the 2016 Rio de Janeiro Paralympics, she competed in four events and medalled in one. Christie, Angie Ballard, Madison de Rozario and Jemima Moore placed 3rd in the 4x400m relay but were disqualified, before successfully appealing the decision and being reinstated to 2nd. Her results in the 2016 Rio Olympics are as follows; 1500 m T54 placed 8th overall with a time of 3:26.00. 5000 m T54 she placed 11th in her heat with a time of 12:15.95 and did not advance to the finals. In the Marathon T54 she placed 7th overall with a time of 1:42:59.