Australia, due to the relatively mild winters and hot summers, the amateur road racing season runs from autumn to spring, through the winter months, while criterium races are held in the mornings or late afternoons during the summer. Some professional events, including the Tour Down Under, are held in the southern summer, mainly to avoid clashing with the major northern hemisphere races and allowing top professionals to compete. Bicycle championships Olympic Games Commonwealth Games World Cycling Championship See also Outline of cycling List of important cycling events Glossary of cycling References Endurance games Cycle racing by discipline Summer Olympic disciplines