I'm not a golfer myself but I know of two golf courses in Lombok. Kosaido Country Club in Sire Bay, North West Lombok and Rinjani Golf Country Club at the foothill of Golong-Sedan, Narmada. They are both 18 holes courses.
Have been told that Kosaido is a great place to play at.I have been to Rinjani Golf Club ones for lunch and it was a nice and peaceful place to spend a few hours.