Robinson grew up in Canberra and played soccer until he was 10 years old. In Year 6 at school his PE teacher who was a runner himself noticed that Robinson was pretty good at cross country and started taking him to races. Robinson went to nationals as an U13 and was placed 18th. In high school he got himself a coach. From then onwards, Robinson was always in the top ten.
Robinson was very good at soccer and had to then make the decision, athletics or soccer. When 17 years old he went to the World Cross Country and ran the junior event. Two years later he made the 1500m final at the World Junior Championships.[5]
Robinson competed at the 2010 World Junior Championships in Athletics[6] in Moncton, Canada.[8] He was selected and competed in the 1500 metres. Robinson competed in heat three[6] and finished 3rd in a time of 3:43.67.[6] This performance qualified him for the final.[9] In the final Robinson finished 8th out of a field of twelve in a time of 3:44.06.[10]
Senior World Championships
Robinson was selected to compete in the 2013 World Championships in Moscow in the 5000 metres.[11] Robinson was in the first heat [11] and finished 7th in a time of 13:25.38.[6] This qualified him for the final where he finished 15th[6] in a time of 14:03.77.[6]
World Cross-Country Championships
Robinson has competed in two World Cross Country Championships.[6] His first appearance was in 2009 in the junior race (8 km).[6] He finished 46th out of 121 competitors.[6] He made his second appearance in 2013. This time he competed in the senior race (12 km) and finished 29th out of 102 athletes.[6]
^"Stewart McSweyn". Australian Olympic Committee. Retrieved 17 September 2021.
^"Brett Robinson". Australian Olympic Committee. Retrieved 30 September 2021.
^ abcdefghijkl"Brett Robinson". athhistory.imgstg.com. Australian Athletics Historical Results. Archived from the original on 14 July 2014. Retrieved 12 July 2014.