The Duathlon D'Ocquier is a run-bike-run race held in October, centered in Vervoz, within Clavier, Belgium. It is a fixture of the Belgian Championship, maintaining a strong competitive spirit with distinct age categories and distances extending up to 27.5 km.
The event is set against the backdrop of the Château de Vervoz and the Condroz region. Categories for youth C, B, and A compete in sprint formats. Juniors are also part of the event, and age-group athletes have dedicated races. Typically, younger participants race in the morning, with age groups competing later in the day.