Aged seven, he began playing golf on the Patea golf course which had the greens fenced to keep sheep off them. He was introduced to the game by an uncle, Roger Rei, but was also undoubtedly influenced by his father, Tom Campbell, who was a single-figure handicapper. The family moved south to Titahi Bay and Campbell developed his skills in junior ranks at Paraparaumu. He attended school at Mana College but left without any qualifications.
