Semi-marathon de Brière - Saint-André-des-Eaux 2027

The Semi-marathon de Brière is a March half marathon held in Saint-André-des-Eaux, Loire-Atlantique, organized by Esco 44 Saint-André-des-Eaux. The 21.1 km main race qualifies for the French Championships, attracting runners aiming for standards and locals seeking a flat, green run. Demand can be high; the solo field is capped at about 2,200, and one anniversary edition sold out twelve minutes after registration opened. The course is primarily road (70% paved, 30% stabilized paths), forming a loop through marshes, forests, and hamlets near Brière. Pace setters typically target 1h30, 1h45, and 2h00, with aid stations on the course and a larger one at the finish. The event includes more than just the half marathon: a short popular race, Nordic walking, children’s races, joëlettes, and adapted sports offer participation for a wider group than just club runners.