Aquathlon - le Chesnay

Race facts

• The course covers 2.5 km.
• It takes place on a Sunday, September 6, 2026 — autumn in this part of the world.
• The closest comparable triathlon event is Swim Run de Beauvais in Beauvais, 70 km away, on September 8, 2026.
• 8 of the 12 most similar events take place in the same month.