Tor des Géants (meaning Tour of Giants in Valdôtain, the dialect of Arpitan spoken in Aosta Valley) is an endurance trail race which takes place in Aosta Valley, Italy, in September.

There are 43 refreshment points at which the runners can eat, sleep, and, if needed, obtain medical care.

Weather can be a challenge, given the large elevation changes over the course and competitors can encounter sun, rain, wind, and even snow.

The 2012 edition was interrupted on the fourth night and stopped on the fifth day at En Bosses (303 km).

The Tor des Géants website,[1] shows live data for each athlete including time of pass at specific points along the path, overall ranking, median speed, distance and elevation gain traveled.

During the tour, the runners cross 34 municipalities, 25 mountain passes over 2000 metres, 30 alpine lakes and 2 natural parks.