Belfast to Dublin Ultra 170K

The Belfast to Dublin Ultra on 9 October 2027 is an approximately 170km / 107 miles self-navigated ultramarathon race. Starting in Belfast, the course takes the old bus route to Dublin. There may be some course changes to this event from previous years' events. All competitors will be given a GPX of the route. This is a continuous non-stop race with 3 cut off points at 40 miles, 70 miles and 100 miles. The overall cut off is 30 hours, This annual event alternates between Dublin to Belfast and Belfast to Dublin each year.