RunRepublic

The Mourne Mountain Marathon is a team-based, navigational endurance event in Northern Ireland from 20 to 21 September 2025.

Teams of two enter one of four categories, covering between 35km and 55km over two days.

At the start of each day teams are presented with a route card with a number of control markers. They must visit each control in the prescribed order but may choose their own route between each marker. A feature of the event is the overnight camp at which all teams must be self-sufficient with everything being carried throughout the two days of competition.

Distances/Events

Refer to event website for Classes & Categories:
35K
45K
55K