The Antibes 6 day race (6 Jours d'Antibes) was a multiday race that is part of the French Ultra Festival which takes place in Antibes in the Juan-les-Pins in the South of France. Consisting of 24h (not done in 2011), 48h and 72h ultramarathon events along with the 6 day, this and the Trans-Gaule are the two most significant multiday races taking place in France today.
Antibes 6 Day Race Wikipedia
M Dominique Naumowicz France 665,225 km
W Nicoletta Mizera Italy 616,025 km (5–11 June)