At the Winter Olympics and world championships, the slalom and downhill portions of a combined event are run separately from the regular downhill and slalom events on shorter, and often less demanding, race courses. On the World Cup circuit, traditional combined events have been "paper races," combining skiers' times from a separately scheduled downhill race and slalom race, generally held at the same location over two days. In 2005, the FIS began to replace these "calculated" combineds with super combined events, held on one day, which administrators hope will result in increased participation.