Struck down with Ross River Fever after a promising start to his professional career, he worked as a club professional in Sydney before returning to playing the game professionally in 1996. Lonard re-gained his European Tour card in 1997, playing there until 2001 before securing his PGA Tour status where he played until 2009, winning the Heritage Classic at Hilton Head in 2005.
Lonard played on in the US attempting to regain his PGA Tour status until 2017 at which point he relocated to Australia and has played the PGA Tour of Australasia since. Turning 50 in July of 2017,
Lonard has played several events on both the European Senior and PGA Tour Champions, finishing third on debut in senior golf at the Senior Open Championship in 2017 and runner-up at the British Senior Masters in 2018. In one of his two appearances in the Presidents Cup in 2003, Lonard was a member of the International Team which tied with the Americans in South Africa.