Longchamp in Paris is the Arc de Triomphe race course where this event has been run for almost its entire history. Le Tremblay was used in 1943 and 1944, and Chantilly in 2016 and 2017, since the Longchamp racecourse was closed for maintenance.
The Arc de Triomphe horse race is held on the first Sunday in October. In 2020, that is Sunday, 4 October. It has a scheduled off time of 16:05 local time in France. That is 15:05 BST in the UK.
No, she came second in the Arc de Triomphe race of 2019 when collared close home and beaten by Waldgeist, who was previously fourth the year before. She was close to a historic third win in a row.
The Arc de Triomphe has total prize money of €3,000,000 in 2020, meaning it remains the most valuable horse race in Europe.
The Arc is important because it ties the form lines of top European Flat turf middle-distance races together. It pits younger horses from the Classic generation, i.e. three-year-olds, against their elders. Entries for the Arc are made from all over Europe and sometimes beyond, and it remains the most valuable race of its kind in this part of the world.