The Grand Fond Bressan is a road race held in Saint-Just, Ain, eastern France, offering three distances: 5 km, 10 km, and a half marathon (21.097 km). The races take place on paved roads, scheduled for a Sunday morning. Bib pickup is at the Salle Polyvalente in the village center prior to the starts. The 10 km race holds a Bronze road label from the French Athletics Federation, qualifying runners for national championships. All three distances contribute to the Ain department challenge.
The half marathon and 5 km begin on Rue de l'Ecole. The 10 km starts near the Salle Polyvalente parking. All finishes are at the Salle Polyvalente on Rue des Eglantines. The course showcases the countryside surrounding Saint-Just, with assistance from neighboring municipalities: Ceyzeriat, Revonnas, Journans, Tossiat, Montagnat, and Saint-Just. The event, also known as "21 kilometres du Grand Fond Bressan," is in its fourteenth edition. It balances the feel of a local event with the structure needed for club runners aiming for rankings and options for those completing shorter distances.