Athletes are grouped according to how much their impairment impacts their performance in their specific event.
• Classes 11-13: Athletes with a visual impairment.
• Class 20: Athletes with an intellectual impairment.
• Classes 31-38: Athletes with cerebral palsy, with classes 31-34 using a wheelchair to compete.
• Classes 40-46: Athletes with a loss of limb or limb deficiency.
• Classes 51-58: Wheelchair racers or field athletes who throw from a seated position.