 In 2005, Hayman played for the New Zealand Māori, against in Suva and against the British & Irish Lions at Hamilton.In 2006 he was shortlisted as one of 5 candidates for New Zealand Player of the Year.On 19 April 2007 it was announced that Hayman had signed a 3-year contract with Guinness Premiership side Newcastle Falcons, turning down an offer from league champions Sale Sharks to do so.