In the 2010 season, he led the under-17 decathlon rankings, before choosing to switch to hurdling. He has competed at the 2011 Commonwealth Youth Games on the Isle of Man, finishing fourth, and also the 2011 European Youth Summer Olympic Festival. at the 2013 European Athletics Junior Championships, Paul came third in the 400m hurdles event. He competed at the 2017 Summer Universiade, finishing third in his semi-final and missing out on the final by one place. In 2017, Paul came second in the British Championships, in a personal best time of 49.49, which was the first time he had run under 50 seconds. In the same year, he came fifth in the European U-23 Championships.