The Mourne Mountain Marathon takes place on the third weekend in September every year. The 2020 date is 19th – 20th September.

The event centre for 2020 will be announced in August 2020. The event starts and finishes at the event centre.


07:00 to 09:00 – Registration open (all competitors must be registered by 09:00). 

08:30 to 10:30 – Start times (all competitors must have started by 10:00) Some years there may be a bus transfer from the event centre to the start. 


07:00  Reveille 

08:00  08:45  – Rolling mass start for all classes 

15:00 – Prize giving at event centre 

16:00 – All courses close 

Courses are planned using the Harvey Mourne Mountains map 1:25000 scale. Every competitor is advised to be in possession of this map which is available from Jackson Sports, Harvey’s and most good outdoor pursuits shops and online stores. 

Gas and other last minute items may be purchased from our sponsor, Jackson Sports on the Saturday morning at the Event Centre. It is best to pre-order gas cans by contacting them in advance.

A bit of advice for newcomers to the sport – keep your rucksack as light as possible.!!

All equipment must be carried by the team throughout the event. Any dumping will be penalised by disqualification and possible barring from future events. Finishers will be gear-checked at random. 

A route card is given out at the start, listing a number of control markers, identified by a 6-figure map reference. Competitors must visit each control marker which are clearly indicated on the ground with an orange and white orienteering kite.  

Not all checkpoints are manned, and competitors must prove they have visited the correct checkpoint location by ‘dibbing’ their ‘SI card’ into the box attached to the control marker. One competitor per team will receive an ‘SI Card’ at the start which they attach to their wrist. See SPORTident timing section for more information. 

The Overnight Campsite location is only revealed to you when you receive your route card at the start on Saturday morning! Teams are expected to continue to be self-sufficient although running water (usually from a stream), portaloos and a skip (see dumping rule) are provided. The campsite is off-limits to visitors. 

Self-sufficiency extends to sourcing water – en-route (definitely) and at the overnight campsite (likely) water will be from streams. It is each competitor’s personal responsibility to boil and/or purify all water they consume; if competitors choose not to treat water this is entirely at their own risk. 

The finish is at the event centre. Sandwiches, drinks and the coveted MMM T-shirts will be provided and showering and changing facilities are also available. 

The registration process and rules are the same although the kit list is slightly reduced:

  • Map Mark Up – At the start line you will be issued with a Control Description sheet similar to the other courses but with many more controls. You will also be given an A4 size map in waterproof paper with the controls and score points marked on it. This map is low quality and not to scale and is intended as an aid to route planning when used in conjunction with your full sized 1:25000 map. 
  • Out on the Hills – You will have 6 hours to collect as many controls as you can in whatever order you like. The usual rules apply.
  • Penalty Points – You will lose up to 10 points from your score for every minute you overrun the 6hr limit. 
  • Kit bags – With food and dry clothes will be transported for you to the Finish (overnight campsite). Every care will be taken to keep them secure but bags and contents are left at your own risk.
  • At the finish – Light  refreshments will be provided at the end of the course. We hope you will stay around for a while and share experiences with the 2 day teams who will have had similar navigational and route choice challenges. Our shuttle bus will take teams back to the Event Centre from 15:30 onwards 

Book your place on the Mourne Mountain Marathon today!