In Stableford, points are received for your score in relation to par. In addition to regular Stableford, GameBook supports various modified versions:
Regular: eagle 4, birdie 3, par 2, bogey 1, DB+
Modified: eagle 5, birdie 2, par 0, bogey -1, DB+ -3
Modified 2: eagle 6, birdie 4, par 2, bogey 1, DB+ 0
Modified 3: eagle 5, birdie 3, par 2, bogey 1, DB+ 0