Ross returned to athletics and won his sixth national 100m title in 2012 with a time of 10.23. Ross also threatened to walk out of the Australian 4 × 100m Olympic relay team if he was not allowed to compete in the individual men's 100 metres at the Olympic Games. Ross's most successful year has been 2007 when he ran his personal best of 10.08 then 10.10 then 10.12 and then 10.13. He was a member of the Australian 4 × 100m relay team that equalled the Australian record when they qualified for the finals at the 2012 London Olympics. Ross and John Steffensen held a press conference in the week before the games began, criticising their selection in only the relay event and not the individual races.