He has competed for Great Britain at the Summer Paralympics when tennis made its first appearance at Beijing 2008. He reached the quarterfinals in the singles in London 2012 as well as the quarterfinals in doubles. He won Paralympic gold in the men's singles event at Rio 2016 and silver in the doubles event with partner Alfie Hewett, whom he beat in the singles final. The pair later went on to complete a non-calendar year Grand Slam, winning all four majors in a row from the 2020 US Open to the 2021 Wimbledon Championships.