Hart was educated at Rye Hills School in
Redcar. He had received financial support from Redcar and Cleveland Young People's Trust as a junior rider. In October 2011, after winning the World Championships, Hart and former Olympic triple-jumper
Jonathan Edwards and world paratriathlete Charlotte Ellis helped launch a £31m project to build a leisure centre in Redcar. Hart won the 2007 youth national championship at
Rheola, Wales in conditions he described as 'really terrible'. In 2008, when 16, he began competing the elite class internationally, with a best DH World Cup result of 22nd at
Vallnord, Andorra in June. In 2009 he won the Maxxis Cup in
Vigo, Spain, and came second in the junior national championship at
Innerleithen, Scotland, third at the junior world championship in
Canberra, Australia and 20th in the Elite class at the
Fort William, Scotland round of the World Cup in June of that year. ==Major results==