17 kms Porto de Mós

17 kms Porto de Mós is a 17-kilometer race based in Marrazes, in Portugal’s Leiria District, with the next edition scheduled for mid-April. It is a road race, but also categorized under nature and mountain running, indicating it is neither a flat city run nor a pure trail event. The route covers 17 kilometers, crossing both road and mountain terrain, with participants running through the Portuguese countryside rather than exclusively on pavement. Finishers list it as the event's most popular road-race distance. The event targets runners seeking a more challenging run in a natural environment near Leiria and Porto de Mós.