There is a growing consensus that the international system needs to be reformed to reflect the changing distribution of power with the rise of the Brazil, Russia, India and China (BRICs). The Group of Twenty (G20) has been at the centre of these discussions. Within the G20, emphasis has been on great powers or rising powers and their capacity to drive reform. Less attention has been given to the preferences and strategies of middle powers in the G20 and their capacity to shape global governance reform. Drawing on interviews with G20 officials, this paper considers the role of Australia as president of the G20 in 2014. Australia's presidency presents a unique opportunity to examine the behaviour of a middle power as it balances the competing global governance claims of the USA and the BRICs.