IMPORTANT UPDATE: It’s been too long and we’re excited to confirm that this year’s event WILL be going ahead.

Saying that… We have a very unexpected change to make, regrettably we have taken a collective decision not to hold the event in the Arrochar Alps this year.  We realise this will be a disappointment for many reasons; be assured we’ve explored all the options to keep the event in the area but have been unable to do so.

The GOOD NEWS is, we are very excited to announce that this year’s OMM on the 30th + 31st October 2021 will now be held in GREAT LANGDALE  in the heart of the Lake District. We would like to say a huge thank you for all the help & support we have received in both Arrochar & Langdale areas.

Back to Langdale! In 2017 we faced high winds and heavy rain with thick clag; this combined with the high peaks and rough terrain of the Lakeland Fells, made for a particularly tough event.

As we write our hill team are devising new courses to get lost on and new route decisions to argue with your team mate about.

We have updated the Event Details with all the latest information, please be sure to read this in full.  If you have any questions regarding your entry, just email or visit the live chat at

Thank you all again & we look forward to seeing you in Langdale. Team OMM

For 53 years, the 2 day Original Mountain Marathon has been a test of competitors abilities in the mountains.

“The OMM” is for anyone who loves being in the mountains.

“Enjoyable suffering. I spent much of the 2019 event playing bog roulette.” – Dom Watts
“Truly epic! everyone needs to do an OMM at some point” – Caroline Wade
“It was devised to see who is the most competent person in the mountains… that puts you in the running to be most competent person, full stop.” – Vassos Alexander

The challenge in detail…

You & your partner will receive a map of your chosen course. You then need to plan a route to visit the marked checkpoints spread across the course area finishing at the overnight wild camp marked on the map.

You’ll need to use your understanding of the terrain & conditions to make appropriate kit decisions and route choices. This includes carrying everything your team will need for the 2 days including an unsupported overnight camp.

The challenge is in your decision making; what route you choose, what kit you take, how hard you push…….which partner you choose.

Sunday is a new map with a different set of checkpoints. Another opportunity to find more checkpoints in another part of the course taking you back to the event centre and the finish.

the omm
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About the OMM…

The UK’s biggest mountain race has shaped the UK outdoor community for more than 50 years. Since 1968 the UK’s greatest running legends, product creators & influential people have stood on the start line.  The OMM ‘s ethos of taking responsibility for your actions in our wild spaces continues to be passed down the generations.

British Army Commanding Officers may deem that the OMM contributes to the unit’s official individual or collective military training (particularly navigation skills), when those planning to participate have suitable experience to take part safely.




In order to conduct the competition on a fair and equal basis for all participants, and ensure safety, it is necessary to apply rules governing a competitor’s conduct, clothing and equipment. These rules, which are set out below will be STRINGENTLY enforced.  Anyone found to be in breach of these rules will be automatically disqualified from the current event and may be banned from future events.

  1. THE GOLDEN RULE  –  once registered, competitors must report to the Event Centre to return their timing tag by 16:30 hours on the Sunday whether they have completed the course or not.  Without it the team is deemed missing and will be searched for!  Please note that if you fail to return the tag before leaving the event area you may be liable for any rescue costs incurred.
  2. Age Limits – Elite Class, all competitors must be 18 years old on the date of the competition and at least one of each team must be a minimum of 20 years of age. In other classes A,B and Score courses, all competitors must be a minimum of 16 years on the day of the competition and at least one of each team must be aged 18 years or older.
  3. Previous Winners – Winning teams in each class are not eligible to compete competitively in the same class in future years (this excludes Long Score and Elite).
  4. Previous Experience – A minimum amount of Mountain Experience, navigation and outdoor skills are essential and details of previous experience must be provided on the entry form.  
  5. Staying Together – The event is for teams of two or three (see rule 6) and teams must maintain contact (close enough to communicate by voice) throughout the competition. Both team members must visit the control sites together carrying all their equipment. i.e. the team must be in possession of both rucksacks at all times. If one member of the team cannot continue the whole team is retired – The only exception is in the case of an emergency, when competitors must exercise their own mountain judgement as to the appropriate action to take, including but not limited to leaving a partner in a warm safe environment to seek help from others.  The map provides an emergency telephone number and mobile coverage is available in most of the higher areas.
  6. Teams of Three. Teams of three can also compete in the OMM, this allows those that are keen to compete but do not have a team mate to enter in line with our ethos of encouraging as many people as possible to get out and responsibly use our wild spaces. For safety reasons all team members must use one tent on Saturday night ensuring no one is left alone.  Contact to add a third team member.
  7. Out of Bounds – areas and compulsory crossing points are marked on the competition map and must be respected.
  8. Equipment – Teams must carry or wear all the equipment and clothing on the official kit list. This is the absolute minimum for safety and survival. You will be asked to complete an online kit check and safety declaration before arriving at the Event. 
  9. Kit Inspection – Competitors must permit the examination of their equipment by race officials at all times.
  10. Emergency Rations – On completion of the course all competitors must still be in possession of sufficient rations for an emergency.
  11. Start Times/Course Closure Time – Start times for both days will be shown on the event details and Saturday and Sunday course will be shown on the map and must be clearly adhered to. Teams failing to finish within the course times may be disqualified or (if on Saturday) may be allowed to continue but marked as ‘Timed Out’ at the Organiser’s discretion.
  12. Timing Tag – Sport Ident timing cards are issued to each team at registration (attached to the wrist).  Competitors will be charged the cost of replacement (currently £30.00) for any loss or damage to these.
  13. Courses – Competitors must not seek to obtain unfair advantage by searching for courses or inspecting the competition area before the event.
  14. GPS/Mobile phones – You are encouraged to carry a fully charged mobile phone for use in an emergency.   These or any GPS devices (including watches) may be carried BUT must not be used for navigation.  An altimeter can be used but please note: we remove the height data from the maps. Any team found using their mobile phone or other electronic device for communication or navigation purposes, except in the case of emergency, will be disqualified from the event.  This includes at the overnight campsite.  We rely on the integrity of our competitors to follow this rule. (unless we remove all electronic devices from every competitor there is no other way for us to enforce this).
  15. Conduct – Competitors who, in the opinion of the organisers, act in such a way to bring the event into disrepute or unnecessarily endanger other competitors or race officials will be disqualified and may be banned from future events.
  16. Dogs – No dogs are permitted in the competition area.
  17. Fires – No open fires permitted anywhere on the course or at the Overnight campsite.
  18. Noise – At the mid-way campsite, no unnecessary noise after 22:00hrs.
  19. Illegal drugs – Illegal drug use will not be tolerated at the OMM. Please do not bring and/or take drugs.  Any drug use will be reported to the police.
  20. U18s –Must be accompanied by a suitable and responsible adult guardian.  The guardian is responsible for the welfare of the child.

On the 19th July, most restrictions in England relating to COVID-19 were eased. This is very positive!

But as COVID-19 is still with us, we are asking you to follow the guidance below to do everything we can to ensure the safety of competitors, volunteers, staff and of course those that live and work in the beautiful Lake District National Park.

What are we asking you to do?

  • Carry a face mask or covering and hand sanitiser at all times
  • Wear a face mask or covering when in the marquee (unless seated).  Face coverings are no longer required by law but we would ask that you wear one.  In busy and enclosed space, when worn correctly, they can reduce transmission.
  • Carry out a Lateral Flow Test (LFT) or PCR test within the 48hrs prior to attending the event.
  • YOU MUST read and sign our online registration form BEFORE arriving at the event (the link to this will be emailed to you 2 weeks before the event).


  • Have any symptoms of COVID-19 at the time of or within the 14 days before the event, including a continuous cough, a fever/high temperature, a loss or change in sense of smell or taste.   You should follow NHS guidance on testing and self-isolation.
  • Are undergoing testing for suspected Coronavirus.
  • Need to self-isolate (e.g. have tested positive or have been asked to self-isolate by NHS Test and Trace).   Here is  Government guidance on what you should do if you live with, or have close contact with, a positive case.

Informed decisions: Please consider your own health and circumstances (for example, you are not yet double-vaccinated or live with somebody at higher risk of serious illness from COVID-19).  You should make an informed choice about whether you wish to participate.

We will be regularly cleaning and ensuring hand sanitiser is available at the toilets and public areas.

What is our COVID-19 cancellation policy?

If we have to cancel the event due to COVID-19 we will offer each competitor the following options:   

  1. Exchange your entry fee for a voucher to the value of your entry to use on a subsequent event entry or OMM product. 
  2. Full refund on your entry. No fees.  

If you are unable to attend the event due to COVID-19 restrictions beyond your control (e.g. self-isolation, local lock down) we will offer you option 1. above.   

Any questions – contact


Event HQ location:

Stool End Farm
Great Langdale
LA22 9JY



The closest airport is Manchester.


The closest railway station is Windermere which you can reach via Oxenholme (The Lake District) on the main west coast line and is easily reached from around the UK rail network.

The onward journey from Windermere Station is approx 12 miles.    Bus number 516  runs from the station to Great Langdale on Friday but unfortunately not on Sunday.

Dependent on COVID-19 regulations it may be possible to arrange a pick up/car share via the OMM Competitors Facebook page.


Parking will be on grass (tractor available in case of mud!) accessed via a track (don’t bring your Ferrari).

Car parking is always at a premium at the locations we choose for the OMM.   To keep the number of vehicles low we would ask that, wherever possible, you travel at least 2 per vehicle.  The event HQ is reached via the B5343 which is narrow in places, please be curteous to other road users, know how to reverse your vehicle and how wide it is!


Unfortunately, this will not be available this year.


If arriving on private group transport (coach/minibus) then please get in touch with for details of where to park or drop off passengers.

The Event HQ will be located at:

Stool End Farm
Great Langdale
LA22 9JY

We’ll have a big heated marquee, with food and bar (See ‘Food and Drink’ section), last minute advice and kit to purchase at the OMM Centre.


Mandatory Online Registration.   To ensure we are paper and touch free where possible we will be asking all competitors to read, complete and electronically sign an online registration form BEFORE arriving at the event.   This will include kit check, safety and COVID declaration and an estimate of your arrival time.

Collection of Sport Ident Timing Tag.  The registration desks will be open for you to collect your teams timing tag from 15:00 hours to 22:30 on Friday and from 06:00 on Saturday.

Your timing tag attaches to your wrist using a tyvek wristband.  Competitors are not able to use their own dibbers as they are used as one of our vital security checks at the end of the event.  The cost of timing cards is including in your entry fee BUT if you lose or damage the dibber you will be charged the cost of replacement (currently £30.00).  More information on timing tags in ‘DURING THE RACE’ below.

Teams may be registered by one member of the team.  There will be no need to present your kit at Registration. However there may be spot checks on equipment at any point during the race.

If collecting your timing tag on Saturday morning be aware it is just over a 2km walk (fully marked and on flat ground) to the start line on Saturday morning.  You must factor this in and give yourself time to collect your dibber and walk to the start for you start time (this will be emailed to you 2 weeks prior to the event).  


Car keys can be deposited at registration or at the start line on Day 1. Collection is only from the Event Centre. Unfortunately we (the organisers) cannot not be held responsible for any keys left in their possession and accept no liability for their safekeeping.


As ever there will be an opportunity to stock up on new kit and race goodies.  Alongside the OMM range, we will have a selection kit list items.  And of course we’ll have a few special offers, perfect for rewarding yourself after a hard weekend!   


For competitors arriving by public transport, baggage can be left at the Event Centre Information Desk. Please ensure it is labelled with Name and Team number. Bags are left entirely at the owner’s risk and no liability will be accepted by the Organisers in the event of any damage or loss howsoever arising.

Please remember you are completely self sufficient for food/drink from your start on Saturday to the finish on Sunday other than water at the overnight campsite which should be boiled as a precaution.

But on Friday night, Saturday breakfast and on Sunday when you return we’re pleased to say that Matt, Fi and the team from Barrett Kitchen and Bar will be returning to this years OMM. Timings as follows:

On Friday

  • 16:00 Hot Food available (Pasta party – preorder available soon.)
  • 21:30 Catering closes
  • 22:00 Bar closes

On Saturday, Race Day 1 – 06:00-09:00 Catering opens for breakfast

On Sunday, Race Day 2 – 12:00 After race hot food and bar open


Here’s the 2021 menu.

Pre-booking for food on Friday evening will be available soon.


There will also be a bar serving a selection of drinks on Friday night and on your return on Sunday.    We will be using a pint pot deposit scheme for all drinks (see more details below).

Sunday After Race Meal.

All competitors have a hot meal and drink included in their entry fee which will be served at the Event HQ on Sunday.  Vegetarian, vegan and gluten free options are available (as requested on your entry form).  If you have a serious allergy or concern please email Matt of Fi on prior to the event.

Hot food will also available for retirees only at the Event HQ on Saturday if required (in replace of the Sunday meal).


Events can be heavy on single use items like plates & cups. Our goal is to reduce the environmental impact of the OMM event as much as possible. We need your help to do this….

As with all our events, we will be using a specialist waste management firm to collect, sort and recycle all the waste from the event. They work to keep as much, if not all, of the waste collected, out of landfill plus do all the sorting off site, meaning we don’t have to worry about sorting it at the event!

We will once again be using a deposit scheme for pint pots at the bar. A £1.50 deposit gets you a reusable OMM pint pot that you can then either return when you’re finished or else keep as a memento! This will drastically reduce our plastic use and hopefully set the standard for future events.

You are free to use your own mug for hot drinks at the Event HQ, we will have cups available but we hope by using your own mugs, we can reduce waste further. Keep your mug handy at the finish on Sunday for squash and water!
Note: You are unable to use your own mugs for beer.


Camping on Friday night is included in your entrance fee – no need to book for this.  Please note that cars are not allowed in the camping field nor tents in the parking area.    It is also possible to camp on Sunday night but please inform us in advance that you will be doing so – contact


You are welcome to bring your campervan/motorhome but it will be parked on grass in a separate area.    NO hook-ups but portaloos within a few 100m’s walk.   MAXIMUM MOTORHOME LENGTH IS 6M.  


If arriving on private group transport (coach/minibus) get in touch with for details of where to park or drop off.


If you’d like a luxury nights sleep before and after the OMM there are local accommodation options for Friday and/or Sunday night.  A good place to start your search is here.

The OMM aims to offer a range of courses that supports movement up and down the scale of difficulty and nature of challenge.  The score courses are the best option for those who want the flexibility of being able to choose the distances that they cover for the duration of the event combined with a wider range of navigational choices over the weekend. The Linear courses offer a different set of challenges both intellectually and from a competition perspective.

There will be 6 courses in total –  3 linear (time based competition)and 3 Score (points based competition).

*IMPORTANT – Distance/ascent quoted are based on example routes and are a guide only.

It is impossible to give an exact distance/ascent for courses as each team chooses the route they take between checkpoints – the details shown are based on example routes and are a guide only.  Terrain, weather, vegetation (and numerous other factors) change every year, accordingly so does the courses.   We plan each course based on the expected average finishing time of the top 5 teams and using the ratio of 100m vertical gain is equivalent to 1km flat distance e.g. 85km distance/4000m of ascent is the same as 95km/3000m of ascent.]

Please ensure you complete the ‘previous experience’ section on your entry and we may contact you to discuss your choice of course if we have safety concerns.  We recommend the Short Score course for first time OMM competitors.

A separate waterproof map is issued for each day.  Control locations for your course are marked with a circle.  The legend shows control descriptions, compulsory controls and control closing times – it is very important that you read all this information.  We work very closely with HARVEY maps to produce the best possible mapping for the event.

Courses are split 55% of the distance on Day 1 and 45 % on Day 2.

Age Limits.  For the Elite course, all competitors must be 18 years old on the date of the competition and at least one of each team must be a minimum of 20 years of age. In other classes (A,B and Score courses), all competitors must be 16 years on the day of the competition and at least one of each team must be aged 18 years or older.


Linear are timed navigation courses where specified checkpoints must be visited in order. Teams are free to choose their routes between checkpoints.  Fastest time wins.


Day 1: 47km / 2200m. Example map
Day 2: 38km / 1800m. Example map

Approximately 85km (straight line distance) over two days with 4000m + ascent. This is a timed navigation course where specified checkpoints must be visited in order. Competitors are free to choose their route between checkpoints. Winning times usually around 12hrs. It is advisable to have significant previous race experience at a suitable level, e.g. the A Course or Long Score before entering this class.


Day 1: 36km / 1650m. Example map
Day 2: 29km / 1350m. Example map

Approximately 65km (straight line distance) over two days with 3000m + climb. This is a timed navigation course where specified checkpoints must be visited in order. Teams are free to choose their route between checkpoints. The winning time is usually in the region of 11 hours. In order to compete on this course we strongly recommend previous race experience on the B Course or a similar event.


Day 1: 25km / 1100m. Example map
Day 2: 20km / 900m. Example map

Approximately 45km over two days with 2000m ascent. This is a timed navigation course where checkpoints must be visited in order. Teams are free to choose their route between checkpoints and the winning time is usually around 8 hours. Some previous experience required in navigation and mountain terrain with a basic level of fitness.  We recommend that those that are new to the OMM enter one of the Score courses as these give you more flexibility with the distance and time you spend on the hill each day.


Score courses are fixed period competitions where teams accrue as many points as possible in the time allowed.  Checkpoints are assigned points values based on location with competitors free to choose routes for the highest score. These courses test navigation ability and are as physically as challenging as you choose to make it as you do not have to stay out on the hill for the whole time allowance. Points are deducted for being outside your allocated time limit at a rate of 2 points per minute or part thereof. These course are easier to complete than Linear but very difficult to do well competitively due to the increased amount of planning required.


Day 1: 7 hours. Example map
Day 2: 6 hours. Example map

Time limit of 7 hours on day 1 and 6 hours on day 2, significant hill experience and fitness is required.


Day 1: 6 hours. Example map
Day 2: 5 hours. Example map

Time limit of 6 hours on day 1 and 5 hours on day 2, to be competitive significant hill experience and fitness is required.


Day 1: 5 hours. Example map
Day 2: 4 hours. Example map

Time limit of 5 hours on day 1 and 4 hours on day 2.  This is the course we’d recommend for 1st time competitors or those wishing to take a more relaxed approach to the competition.  You will still need to be able to read a map and use a compass.

Still unsure which course to enter? Contact and ask for advice.


It is no longer felt necessary for all competitors to bring their packs to the registration. However it is still considered vital for kit checks to take place, so random kit checks will take place at the start, overnight camp and at the finish. Random checks will include everyone and not merely the high ranking finishers.  You will be required to sign an online Kit Check Declaration form prior to the event.  


Each individual and team is responsible for being properly equipped for two days unsupported racing in exposed terrain at the end of October.

This list should be seen as a minimum requirement only. Check the weather forecast, your previous experience and use sound judgement for the kit you should be wearing and carrying. The organisers reserve the right to disqualify any competitors who, in their opinion, do not have the necessary kit to survive in an emergency situation. Cotton clothing is not suitable.  


  • Taped seams waterproof jacket with hood
  • Taped seams waterproof trousers
  • Clothing suitable for mountain running and walking
  • Warm layer top.
  • Hat, Gloves & socks
  • Footwear suitable for fell and trail use
  • Head torch capable of giving useable light for a
    minimum of 12 hours
  • Whistle & compass
  • Map (as supplied)
  • Insulated sleeping system
  • First aid equipment
  • Survival bag (not a sheet)
  • Rucksack
  • Emergency rations (should still have at the finish line)
  • Water carrying capability
  • Pen/pencil for map marking (waterproof paper) in wet conditions
  • Fully charged mobile phone
  • Face Mask (or covering)
  • hand sanitiser

Spare warm kit and insulated sleeping system must be waterproofed (i.e. in a drybag)


  • Cooking equipment including stove with sufficient fuel for duration of the race, plus some spare for emergency use, left at the end of the event
  • Tent with sewn in groundsheet
  • Food for 36 hours for two people

Be aware that there will be no skip at the overnight campsite! The race is self-sufficient so you need to carry any rubbish with you back to the finish on Sunday.   No rubbish at kit check? We will be asking why!


You will be notified of your start time by email approx. 2 weeks prior to the event.

We now prioritise early start times to category teams (ladies, vets, mixed and family teams). Then by date of entry.



There will only be one start location. The route to the start on Day 1 will be signposted from the camping field and is just over 2km walk on mainly flat paths/tracks.  Please ensure that you leave enough time to get to the start.    There will be very limited toilets available close to the start so go before you set off!

Start Times Day 1

From 08:00 hours for all classes except Short Score (09:00 hours).

The start line

Each team will be allocated to a time window during which they will be called forwards to start.  Your time will start from when you punch your tag in the start box, however please note if you fail to start within your allocated window you will have to be fitted in at the next available slot, which may be some time.


We use 1:40000 Harvey Maps.  The map is printed on polypropylene synthetic paper that is waterproof, tear resistant, easily folded and 100% recyclable.

At the start line you will collect the map for your course which will show all checkpoint locations.  The legend lists the checkpoint codes, grid ref, description, score course points and control closing times.   It is very important that you read all this information.

To ensure the start area does not get congested you must move away from the start before beginning your route planning.


Both members of a team must finish together – failure to finish as a team will lead to disqualification.  Take care to visit the last controls on both days. This is a common mistake leading to disqualification.

Immediately after finishing on Day 1, follow the taped route to the download stations where you will dip your timing tag and be given a printout showing the controls visited, with points and split times. Please move away from the area THEN check your printout. If anything is wrong or you need to report having to punch manually, proceed to the enquiry point further down the line. Make sure you keep your timing tag on for use the next day.

All competitors wishing to start on Day 2 must:

  • Finish Day 1 together, having correctly completed the Day 1 course by 20:00 hours.
  • Have camped in the official campsite overnight.
  • Not broken any of the competition rules.

Ad hoc teams of Day 1 finishers may be allowed to start on Day 2 as Non Competitive at the discretion of the organisers.


Anyone retiring at the overnight campsite must make their own way back to the Event Centre. Transport is not provided except in the case of serious injury. Teams who retire on the first day without reaching the overnight camp will be presumed to have independently camped for the night, these teams should wherever possible inform the Event HQ of this fact by mobile phone or via another team or marshal.

Kit Checks

Spot checks on equipment may be carried out at the overnight camps.


Only the official campsite toilets should be used and you must take all rubbish with you –  there will not be a skip.   If you have no rubbish and are kit checked at the finish we will want to know why!

As a precaution we advise you to boil all water.

The overnight camp/s are out of bounds to everyone other than competitors and race officials.


Your Day 2 start time window will have been emailed to you 2 weeks prior to the event BUT please read on as this may change if you finish late on Day 1 or are included in the seeded starts.

Day 1 Late Finishers

Teams finishing after 18:00 on day 1 will be re-allocated to a start window of 07:00 – 07:15

Seeded Start Times

There will be a seeded start between 07:00 – 07:30 for the leading finishers in each category on day 1 for all courses other than the Short Score which will have a seeded start from 08:00 – 08:30.  

The start times of the teams in the seeded start and will be displayed at the campsite on Saturday evening as soon as possible after 18:30.  

REMEMBER to check the board on Saturday evening to see if you are in the seeded start or have been reallocated an earlier start time. You might have done better than you think!


The finish point will be shown on competitor’s maps.  Pairs must finish together. Failure to finish as a team will lead to disqualification.

After you have finished, please grab yourselves a cup of water and/or hot squash, and go straight to download your tag. You will be given a printout showing the controls visited, with points and split times. Please move away from the area THEN check your printout. If anything is wrong or you need to report having to punch manually, proceed to the enquiry point further down the line.

Your tag will be removed and then head to the catering area for food.   Please keep a hold of your results slip and show this to the guys serving the food as these will entitle you to a hot meal freshly prepared by our chefs!

Kit Checks: Spot checks on equipment may be carried out at the finish.


All courses will close at 16:00 on Day 2; if you arrive back after this time you will be timed out.

Controls will be closed and may be removed before 16:00 at a time dependent upon their distance from the finish. Control closing time will be displayed on the control description sheet. The intention is to bring in distant controls as soon as possible to inform a search for missing teams if this becomes necessary.


Each control site will have the standard orienteering kite with a two letter code, a SportIdent control station and a standby pin punch.  Each team will be issued with an Sport Ident timing tag.  Timing tags are small plastic pegs that have an electronic chip in one end.  It is dibbed into the hole in a control station in order for competitors to register that they have visited the control. The control station gives an audible bleep and a visual flash to confirm that the dibbing has been successful.

Some controls will have 2 or 3 stations available to avoid queues – you can punch at any station at a given control point. In the unlikely event that the control station doesn’t register, please record your visit on your map using the manual pin punch in the space provided and report the fact to the marshals and after you pass through the finish.

Many controls will be manned by race officials who will  endeavour to record the time of each team passing through the control. Please assist the control officials by clearly announcing your team number and class prefix i.e.: E,A,B etc. Teams are requested not to use the control points as resting places or for the consuming of refreshments since this distracts control officials and shows approaching teams where the control sites are.


The SI tag will be attached loosely to your wrist at registration using a tamper proof wrist strap. This must remain attached all weekend and be cut off you either when you finish or if you retire but only at the Event Centre. You will be at risk of disqualification if you remove the tag from your wrist. You will quickly get used to carrying the tag on your wrist. Wrists do swell during exercise and providing it has been attached loosely; you will hardly notice that you are wearing it overnight. If you lose, break or take a tag home with you the charge for it’s replacement is currently £30.00  The use of your own timing tag is not allowed for safety reasons.


The tag has your team number printed on it and is the only way we can tell who is still out on the course.

Tags MUST be returned to the event centre by 16:30 hours on the Sunday before you leave the competition area: Missing tag = Missing team = Search party.


The competition has safety designed into it, provided that competitors follow some basic rules on their conduct throughout the two days. Teams should have all the necessary equipment for them to withstand a night on the hills in the most adverse of weather conditions. The requirement for teams to stick together at all times is an essential ingredient of safe conduct. Do not press on beyond the point where one team member is beginning to suffer from exhaustion or the first signs of exposure.  Do not go for too long without eating, particularly later in the day as you begin to tire. Always wear sufficient clothing and waterproofs to keep warm and dry.  

If in any doubt of your ability to reach the official overnight camp before the designated time limit, you should find a suitable site on the hills and camp independently for the night. WHEREVER POSSIBLE YOU SHOULD CONTACT THE NEAREST MARSHAL OR THE EVENT HQ (IF MOBILE SIGNAL AVAILABLE) OR ANOTHER COMPETITOR TO INFORM THEM THAT YOU WILL BE STAYING ON THE HILL THAT NIGHT.

Knowing your own capabilities, being prepared to look after an ailing partner, not pressing on regardless: these are some of the essential components of safe hill-craft.  If you are staying out for the night, if possible, please contact the emergency number on the map to let the HQ know.

  • EXPERIENCE – All teams are vetted for experience and if necessary we use our judgement to reallocate teams to a more appropriate class or deny them entry.
  • EQUIPMENT – the list of compulsory equipment is the essential minimum and entrants must use their judgement to increase this according to conditions.
  • TEAM WORK – Remember this is a team event and your partner is your first point of aid in case of trouble. The buddy system is invaluable for checking hypothermia.
  • MOBILE PHONES – mobiles are allowed to be carried but may only be used for communication in an emergency and after retiring from the event. If you decide to use whilst still in the competition you will be retired for doing so (this includes the overnight camp on Saturday).
  • ELECTRONIC PUNCHING – Sport-Ident electronic punch systems verify which teams have visited any particular control and, as such, have a significant role in locating missing teams. The related software is specially modified to help rapid visual identification of who is ‘still out there’.
  • SOUND MOUNTAIN JUDGEMENT – Never allow the pressure of competition to override your sense of SMJ (Sound Mountain Judgement) at any time. Remember, every team is different and has its own level of skill and endurance. The decision to start, or to pull out, is yours alone and doing so would be an example of exercising SMJ as a team.
  • On Sunday it is vital that you make contact with the Event Centre if you are unable to get back by 16:30 hours. If you do not do so you will be the instigators of a Mountain Rescue Incident. Pitching a tent on the hill Sunday is only acceptable in the case of genuine emergency.

Please read on for some useful articles on safety in the mountains:

999 by Text – Register for this important service before the OMM.  It allows you to contact 999 by text – very important when you may only have a week phone signal that does not allow for clear speech.  You must register BEFORE you need to use the service – it’s quick and easy.  Click here

Guide to calling in the Mountain Rescue

First on the Scene of an Accident? – a useful guide from the FRA

Hypothermia – How to avoid it and what to do if you get it

River Crossings – Top tips from the BMC if a river crossing is unavoidable

Ticks and Lymes Disease – All you need to know about Ticks the little blighters!

Taking Care Around Cows – Just in case you encounter cattle or other livestock


The OMM is a not for profit adventure race and the purpose of the prizes is to recognise outstanding achievement.  As a result we award prizes in accordance with the following guidance although reserve the right to add where we see fit. 

We will always award prizes for 1st Overall team, 1st Female team, 1st Family Generation Team, 1st Mixed team and 1st Veteran team. 

Where there are 5 or more teams in a category we will award a prize for 2nd place. 

Where there are 10 or more teams in a category we will award a prize for 3rd place.

The Hutton (Military) Trophy will only be awarded to the highest placed military team on the Long Score, both team members must be currently serving or, have served in a military for at least 3 years. 

Please note due to the way the Veterans handicap is now calculated we will only be awarding an overall veteran prizes.

All prize wining teams will be presented with an OMM voucher in recognition of their achievement.

OMM Special Recognition Award.  If you know of someone taking part in the OMM that deserves special recognition please get in touch with Stuart the Event Director (

Family Generation Team.  Consists of 2 members of the same family from different generations (e.g. grandfather/granddaughter, mother/son).

U21 Team.  New next year (2022) – an U21 team consists of competitors who are 21 years old or under on the day of the event.  This will replace the previous Family generation team.

The presentation of prizes will take place in or close to the main marquee dependent on weather. There will be 2 prize presentations: B & Short Score at 1400 hours, Elite, A, Long & Medium Score at 1530 hours.  The the Hutton Trophy (military prize) will be presented at the same time as the Long Score.  Prizes will consist of vouchers to spend on OMM products.


The calculation of the handicap was changed for 2018 following competitor feedback; now only the age of the older team member is considered, and woman are given an additional handicap equivalent to 10 years.

This is how the percentage handicap will be calculated:

  • A team is eligible for a handicap if both members are 45 or older on the Saturday of the event. This applies to both men and women.
  • To calculate the handicap, ten years is added to the age of women and then the greater of the team’s two ages is used as the handicap age.
  • The handicap percentage is then calculated as 1% for every year over 45.
  • Here are some examples:
  • A team of two men aged 50 and 55 has a 10% handicap.
  • A team of a man aged 55 and a woman aged 50 has a 15% handicap.
  • A team of a man aged 55 and a woman aged 44 is NOT eligible.
  • A team of two men aged 40 and 70 is NOT eligible.

This is how the percentage handicap is used:

  • For a linear course the total time over the two days is reduced by the handicap percentage.
  • For score courses the total points score over the two days is increased by the handicap percentage. If the total points score over the two days is negative, no adjustment is made.
  • Here are some examples:
  • If the total time over two days on a linear class is 8 hours 30 minutes and the handicap is 10%, the time used for veteran results is 7 hours 39 minutes.
  • If the total score over two days on a score course is 800 points and the handicap is 20%, the score used for veteran results is 960 points.

MILITARY CLASS – Hutton Trophy

THE OMM has a well established Military Class competing for the Hutton Trophy. Donated by Col Jim Hutton OBE for the highest placed team on the Long Score event.  Both team members must be currently serving or, have served previously in the military for at least 3 years.
Army Commanding Officers may deem that the OMM contributes to the unit’s individual or collective military training outputs (particularly navigation skills), when those planning to participate have suitable experience to take part safely.  Army ‘Authorisation for Comparable Activities’  (ACSO 3235) policy must be followed.   
About the Hutton Trophy

huttonPresented for the first time in 2010 at the OMM Dartmoor, the Hutton Trophy was presented to OMM by the family of Marine Jamie Hutton who was tragically killed in a training accident in 2008. Jamie and his father, Jim, also known as Col Jim Hutton OBE, Royal Marines, were the highest placed family team in their category in the Brecon Beacons OMM in 2004.  The Trophy is a Commando Dagger in a chunk of Dartmoor granite, which represents everything that the event stands for.  Designed to test teamwork, intelligence, determination and a robust sense of humour the OMM offers a different challenge every year.  

The Hutton (Military) Trophy will be awarded to the highest placed military team on the Long Score, both team members must be currently serving or, have served in a military for at least 3 years.

Concessionary Athlete Fund

We believe economic background and lack of resources are some of the biggest barriers to entry to our events and action needs to be taken to create champions from these backgrounds who can best represent the positive stories of Mountain Marathons. As such, we are pleased to announce that we will provide 20 scholarship entries to the OMM for those who would normally find entry to the event challenging.

The 20 entries will also have assistance in meeting the kit list requirements and have access to the OMM team for support in training and skills. Application to the scholarship will be by personal statement (written or by video) to, stating why they would like the support. Support from OMM will be provided confidentially.


We award 20/30/40 year club badges to the elite group of competitors and volunteers who have completed 20/30/40 or more events.  Lots more info here.  Please contact if you think you are eligible.  There are many who are no longer ‘race active’ and not on our mailing list who may be eligible, please alert anyone you know who is.  Presentations will be made at the event where possible.

Commitment to Review

Finally, we recognise that people are passionate about the sport of Mountain Marathon running and just want a fair opportunity to achieve in it. We believe we are outlining a fair system for all but undoubtedly, we will make errors and recognise that the landscape and expectations of society is changing all the time. We do not want to see the sport of Mountain Marathon left behind for the sake of tradition but instead, grow and nurture this unique challenge for future competitors.

We therefore commit that we will review our prizes and equal opportunity structure every two years (next in 2023) but within that time, we welcome your thoughts on what we can do better and will improve wherever we can.

Key dates and times for the OMM

On the Friday

  • 15:00 Registration and parking opens
  • 16:00 Hot Food (Pasta party)
  • 21:30 Catering closes
  • 22:00 Bar closes
  • 22:30 Registration closes

On Saturday, Race Day 1

  • 06:00 Registration opens
  • 06:00 Catering opens
  • 08:00 All starts open (except short score)*
  • 09:00 Short score start opens*

On Sunday, Race Day 2

  • Start times from 0700*
  • 12:00 Hot food and bar open
  • 14:00 B + Short Score prize giving**
  • 15:30 Elite, A, Long + Medium score prize giving**

*Start times allocated prior to event
** Approximate timings for prize giving

Results – The results will be updated online every 15minutes through the weekend.

Photography – Photographs will be available online free of charge after the event.


Up to Fri 15 Oct 20.  Changes to your team and to the course you have entered can be made by emailing  

After Fri 15 Oct 20.  No further team member changes.   Changes to competitor details and courses can still be made at registration.  Course changes at this point will only be allowed if space is available.  


**If you wish to cancel your entry due to the change of location of the event, please email by 5pm on Mon 16 Aug 21 for a full refund.   After this date the normal refund policy below will apply.  We are unable to defer entries.**

For any cancellations received up to  31 Jul 21, a refund (-10% admin fee) is made.  After this date we cannot offer a refund as we have already paid for your attendance.  The event is run on a not for profit basis and one of the ways of keeping the costs as low as possible is to agree numbers as far in advance of the event as possible, hence why it becomes more expensive to enter as we get closer to the event.  For these reasons we are also unable to defer entries to future events.


If we have to cancel the event due to COVID-19 we will offer each competitor the following options:   

  1. Exchange your entry fee for a voucher to the value of your entry to use on a subsequent event entry or OMM product. 
  2. Full refund on your entry. No fees.  

If you are unable to attend the event due to COVID-19 restrictions beyond your control (e.g. self-isolation, local lock down) we will defer your entry or offer a product voucher to the value of your entry. 


The organisation of the competition is conducted by a small army of unpaid volunteer helpers drawn from a wide variety of clubs and organisations, including the many faithful stalwarts who help out every year and without whose experience it would not be possible to conduct such an event.  These teams of volunteers allow us to keep the entry fees as low as possible to benefit you.

The officials listed are the principal organisers and team leaders:

Event Director: Stuart Hamilton

Event Coordinator/Competitor queries: Emma Gill

Event Communications/Press Officer:  Alistaire McGregor

Race Coordinator and Controller: Dave Chapman

Registration: Sharon Fishwick and team

Communication: Eddy Wane and team.

Car Parking and Coaches: Ryan Greenwood and team

Start Day 1 and Finish Day 2: John Ashton and team

Midway Camps, First Aid and Day 2 starts: Darren, Laura, Stephen, Andrew and the team from Glossop District Scouts

Event Infrastructure: Simon Peers and the team from North Yorkshire Scouts.

Entry includes:


OMM race maps – Custom Harvey Maps 1:40K.

Friday night gathering – Food, drink & tales of getting lost.

Friday night camping – Top tip: Don’t use your race tent.

Mid race Saturday campsite – Flat, dry & sheltered…..possibly.

Post event hot meal – Because a plastic medal won’t warm you up.

Event Team – Who are held as the gold standard, are advisors to the national parks & governing bodies.