The Team Triathlon eXperience TTX is a ten-hour triathlon held at the Gileppe dam in Wallonia. It is structured around time spent on the course, differing from standard sprint, Olympic, or long-distance formats. Participants can compete individually or as part of a relay team.
Relay teams can consist of two, three, or four members, accommodating athletes who prefer to divide the swimming, cycling, and running segments, as well as those seeking the complete solo challenge. All proceeds benefit Ecole à l'Hôpital & à Domicile, an organization supporting education for children in hospital or at home.