Career
He was ranked as the world"s seventh best welterweight by the WBA and the IBF. Sullivan has held national titles in six weight divisions in New Zealand (welterweight, light-middleweight, middleweight, super-middleweight, light-heavyweight and heavyweight). Sullivan has been inactive since 2008 but has not formally announced his retirement. He was working as a debt-collector as of 2009.
In 2009 he was jailed for six months for defrauding Housing New Zealand.