Para-archery was the first sport where wheelchair athletes had organised competition and was one of the original Paralympic sports. It is also one of the sports with the most similarities to its able-bodied counterpart. Thus, athletes are able to compete in both the Olympics and Paralympics if they meet the qualification standards. Para-archery is open to athletes with physical impairments who may shoot with assistive devices allowed under classification rules. The sport tests accuracy, strength and concentration. It includes specific competition categories for athletes with certain classifications: W1, compound open and recurve open. A dedicated article on classification in para-archery will be posted on Paralympic.org later this week. In para-archery, the target size and distance archers stand from the target differs based on the competition category. In individual events, archers shoot 72 arrows at the 10-circle target, divided into 12 ends of six arrows each. Each athlete is allowed four minutes per round. The top-scoring athletes advance to 15-arrow head-to-head matches, which are single-elimination. An archer using a recurve bow shoots at a target 1.22m in diameter, 70m away from the shooting line. A compound archer shoots at a target 80cm in diameter and stands 50m away.