Gray Academy boasts a top-notch athletics program that sees students competing locally, provincially, and nationally through a variety of leagues and associations. Partnerships with organizations like Canadian Accredited Independent Schools (CAIS) allow Raiders athletes to have the unique opportunity to compete against schools from across Canada.

The 2018-19 school year was an historic one in the history of sports at Gray Academy. The varsity boys basketball team won the AAA provincial tournament for the first time since the 1994-95 season. The varsity ultimate team was invited to the national tournament for the first time and placed in third. The team also placed second at the provincial tournament with three players being named to the top ten in the province. Volleyball, track, curling, badminton, and more, are all sports that students participated in during the year.