A standard Paralympic swimming pool used for long-course races is 50 metres long.
Paralympic swimming follows the same long-course pool length used in Olympic swimming. Races are divided into lanes, and athletes compete in classifications based on how their impairment affects swimming performance. The classification system uses prefixes such as S, SB and SM for different strokes and events.
A 25-metre pool is a short-course pool, so it should not be confused with the 50-metre competition format used at the Summer Paralympics. Pool length matters because race times and records depend on the number of turns required.
Paralympic swimming includes athletes with physical, visual and intellectual impairments. Starts may be adapted, including water starts for some competitors, but the long-course distance remains a standard 50 metres.