Indigenous Marathon Project graduate Colin Sampton in 100km Cairns Esplanade bid ThuThursday 11 updated ThuThursday 11 FebFebruary 2021 at 11:54pm "It's going to be tough": The 100km esplanade attempt will be Colin Sampton's longest run yet. ( Share Print text only Cancel A Far North Queensland man who once weighed more than 100 kilograms and could only run a few hundred metres will attempt to run 100 kilometres on the Cairns Esplanade this weekend. Key points: Colin Sampton will try to run 40 laps of the Cairns Esplanade to raise money for the Indigenous Marathon Foundation He graduated from the organisation's Indigenous Marathon Project in 2013 and has continued running ever since