He played representative level rugby league (RL) for the New Zealand Māori team and Cook Islands, and at club level for Taniwharau, Waikato Cougars, Wainuiomata Lions, Manly Sea Eagles, Northern Eagles and Toukley Hawks, as a centre, five-eighth, or lock, and club level rugby union (RU) for the Te Whānau side.
Berryman attended Huntly College and started his career playing for the Taniwharau in the Waikato Rugby League competition in 1993.
[3] Berryman moved to the Wainuiomata Lions in 2000 so he could play in the inaugural season of the Bartercard Cup.
[3][8][9] Berryman subsequently won caps for the Cook Islands in the 2000 Rugby League World Cup.
[13] As of 2011, Berryman is the captain-coach of the Toukley Hawks in the Central Coast Division of Country Rugby League and has convinced former teammate John Hopoate to join the club.