Flatlands 300

Flatlands 300 is a fixed-route, single-stage supported gravel ultra of roughly 300 kilometres through the Dutch countryside, starting and finishing in Asten in the province of Noord-Brabant. The course mixes fine crunchy gravel roads and quiet backroads through deep forests and wild heathlands, with a 21:30 Sunday cut-off corresponding to an average speed of around 18 km/h. It is run as an unsupported adventure ride rather than a race, with live dot-watching and a Finishers Fest at the line.