Triathlon de Rumilly

The Triathlon de Rumilly 2026 is a prestigious multi-sport event held in the Haute-Savoie region of France. Scheduled for Sunday, May 24, 2026, the competition is headlined by the formidable "Half Iron du Semnoz," a race famous for its challenging mountain ascent. The event caters to all skill levels, offering everything from youth categories to long-distance endurance challenges in a scenic Alpine setting.

Event Logistics and Participant Information:

• -- The Semnoz Challenge: The Half Iron bike course is not a standard "promenade" but a serious mountain test involving the Col du Semnoz, a climb frequently featured in the Tour de France as an "outside category" (Hors Catégorie) ascent.
• -- Venue: The event hub is located at Rue du Moulin in Rumilly (74150). The transition zones and start/finish areas are designed to manage multiple race formats simultaneously.
• -- Technical Preparation: The organization provides GPX traces for the M and L distance cycling routes, which are essential for athletes to prepare for the significant elevation changes.
• -- Eco-Tri Initiative: The event follows "Eco-Tri" principles, focusing on environmental sustainability and minimizing the carbon footprint of the competition within the sensitive mountain ecosystem.
• -- Registration: Sign-ups are managed through the official event portal, with the race typically seeing a high volume of entries from regional and international triathletes.

Regional Context and Environment:

• -- Location: Rumilly is situated in the Albanais region between Annecy and Aix-les-Bains. Its proximity to both Lake Annecy and the Massif des Bauges provides a varied landscape of flat valleys and steep peaks.
• -- Geography: The defining feature of the race is the Semnoz mountain, a 16km limestone ridge. The terrain offers a mix of open-water lake swimming and forest-trail running.
• -- Climate: Late May in Haute-Savoie typically offers refreshing spring conditions. While valley temperatures might be around 18°C, the summit of Semnoz (nearly 1,700m) can be significantly colder and more exposed to mountain winds.
• -- Heritage: The triathlon is a local institution, often referred to as the 26th edition of the "Triathlon de Rumilly," reflecting decades of sporting tradition in the community.

The Triathlon de Rumilly 2026 offers an authentic Alpine endurance experience, combining the technical rigors of mountain cycling with the scenic beauty of the French Savoie.