Turner spent most of his career on the PGA Tour of Australasia and the European Tour. Turner won four tournaments on the European Tour and achieved a career best ranking of 18th on the European Tour Order of Merit in 1997. He has represented New Zealand in international competitions many times and was one of Peter Thomson's two wild card selections (along with Frank Nobilo for the winning International Team in the 1998 Presidents Cup.
Since retiring from tournament golf, Turner has set up a golf course design and corporate hospitality business. He was also active in founding the Golf Tour of New Zealand, a series of tournaments in New Zealand for both amateur and professional golfers.