Complex sentence: Until 2008, the Australian Masters was always held at the Huntingdale Golf Club in South Oakleigh, Victoria, Australia, but from 2009, a rotation system will be introduced and the event will be staged at different courses in the Melbourne area.
Split into simpler sentences: Until 2008, the Australian Masters was always held at the Huntingdale Golf Club in South Oakleigh. From 2009, a rotation system was be introduced and the event was be staged at different courses in the Melbourne area.