Duathlon VATRI is a short duathlon held in Villeneuve-d'Ascq, located in the Nord department of Hauts-de-France, near Lille, Roubaix, and Tourcoing. Typically scheduled for early March, the main S-format race covers approximately 27.5 km, comprising a run-bike-run sequence instead of a pure running competition.
The course incorporates both urban segments and natural areas surrounding Villeneuve-d'Ascq, featuring lakes and ponds. Villeneuve d'Ascq Triathlon is the organizing body, and the Pont de Bois train station is situated roughly 2.5 km from the event site. Certain youth formats associated with the Duathlon de Villeneuve d'Ascq are not currently offered or are awaiting rescheduling, with the S-format race being the most consistently listed option.