Smith was born on 21 April 1978 in Dunfermline, Fife, Scotland.[1] He was born with a club foot and for the first three years of his life he had his bones repeatedly broken and reset to correct his foot's alignment.[2]
He graduated from the University of Bath in 2009 with a bachelor's degree in sports performance.[1]
In 2010 he underwent emergency surgery after doctors found a tumour inside his spinal cord at cervical spine level. The surgery left him temporarily paralysed, an issue that was later determined to be the result of a blood clot.[2]
He earned a Black Belt in Karate and was in the British squad for 6 years. He took up sprinting in a desire to compete at the Olympics as karate was not an Olympic sport, and became East of Scotland 400m champion in mainstream athletics, and took third in the 200m behind Olympian Ian Mackie. But running round bends caused stress fractures which forced him to quit.
He turned to bobsleigh, because straight-line running was fine and made the GB team as a brakeman. But neck and back pains interrupted training and he missed a 2006 Winter Olympics spot by one-hundredth of a second.[5]
In 2011 he competed at the World Rowing Championships held at Lake Bled, Bled, Slovenia. He won the gold medal in the LTAMix4+ event alongside crewmates Pam Relph, Naomi Riches, James Roe and cox, Lily van den Broecke.[1][7] They completed the one kilometre course in a time of three minutes, 27.10 seconds, finishing nearly five seconds ahead of runners-up Canada. The result qualified a boat for Great Britain into the 2012 Summer Paralympics in London.[8] The crew repeated their gold medal result at the Munich World Cup event in 2012.[1]
Despite his success at rowing, medical issues forced Smith to retire from that sport, and he subsequently joined British Cycling's Paralympic Academy programme in 2014.[13] He continued to compete at Paracycling despite further surgery on the tumour, taking ninth place at the final Para-cycling Road World Cup of the 2015 season in Pietermaritzburg, but in January 2016 he announced that he'd need another operation that ended his plans to compete at the 2016 Paralympic games.[14]
^"Mixed Coxed Four – LTAMix4+". The London Organising Committee of the Olympic Games and Paralympic Games Limited. Archived from the original on 29 August 2012. Retrieved 25 August 2012.