On 6 February 2011 O'Young drove for Audi Sport Team Joest in the 2011 Bathurst 12 Hour held at the Mount Panorama Circuit in Bathurst, Australia. Driving an Audi R8 LMS GT3, O'Young, along with Marc Basseng and Christopher Mies led home team mates Mark Eddy, Craig Lowndes and Warren Luff in a 1-2 finish. The winning margin only 0.7141 at the end of 12 hours or racing on the 6.213 km mountain circuit. It was his first of two Bathurst 12 Hour outright victories.