O'xyrace - Divonne-les-Bains is a late-August triathlon held in Divonne-les-Bains, located in the Ain department of France's Auvergne-Rhône-Alpes region. The event operates under the Challenge O'xytrail banner and provides three race distances: S, M, and L, allowing participants to select a race from a short format to a considerably longer one.
The S race includes a 750 m swim, a 20 km road bike leg, and a 5 km road run. The M distance follows a similar structure with a 1.5 km swim, 40 km bike, and 10 km run. The L race, a popular choice, consists of a 3 km swim, an 80 km bike, and a 20 km run. The race takes place in a natural setting, incorporating lakes and ponds north of Lyon.