Like all IBSA sports, athletes who want to compete in showdown need to be classified by experts to ensure they have an eligible impairment.
Those who do will be placed into one of three groups: B1, B2 or B3.
B1 and B2 athletes have the most severe impairments but in showdown, all athletes wear eyeshades and so all players can compete against each other.
You can find out more about how classification works, and what to expect if you are an athlete, here.
You can view the list of showdown athletes who have been classified below.