Para triathlon is a variant of the triathlon for athletes with a physical disability. The sport is governed by World Triathlon (TRI) (formerly known as ITU), and was first held as a Paralympic event at the 2016 Summer Paralympics in Rio de Janeiro, Brazil. At events sanctioned by World Triathlon, athletes compete over a Para triathlon sprint distance event with a 750 m swim, 20 km cycle using handcycles, bicycles or tandem bicycles with a guide and a 5 km wheelchair or running race. Athletes compete in nine sport classes according to the nature of their physical impairments, with variations made to the traditional event structure commensurate with their disability. Para triathlon at the Summer Paralympics will be a sprint race consisting of 750 m swimming, 20 km cycling and 5 km running stages. At the 2018 Commonwealth Games, para triathlon was staged with athletes across multiple categories, with staggered starts introduced to ensure fair competition between categories. From Wikipedia