In 2020 Stedman represented New Zealand at the 2020 Summer Paralympics in Tokyo, Japan. He won the silver medal in the long jump T36 and the bronze medal in the 400 metres T36.[5]
Stedman was named 2015 Para Athlete of the Year by Sport Canterbury and in 2016 he was named Junior Sportsperson of the Year by ParaFed Canterbury. In 2017 he was named Junior Athlete of the Year at the Canterbury Athletics Awards and also shared the Middle Distance Athlete of the Year award with Angie Petty. In 2020 he was named Para Athlete of the Year at the Canterbury Athletics Awards.[7]