24 – 25 OCTOBER 2020

53rd OMM Threatened with Cancellation – WE NEED YOUR HELP!  

We’re all in unchartered water here (did anyone mention these are unprecedented times?). The OMM event, us and you have probably never faced challenges as we have done in the last few months, and it’s not over yet.  

One of the joys of the OMM event has always been the escape from normality. The freedom of disappearing off into the clag on some dodgy half-baked bearing is something we can all relate to and is much needed right now.  

This year will be the 53rd edition of the Mountain Marathon event. But the majority of events are being cancelled and we are only going to be able to pull this off with the support of the community. 

Early Location Release – Arrochar Alps 

We are excited to announce that this year’s event location will be the mountainous, wild & epic scenery of the Arrochar Alps in the Scottish Highlands.   

The location is mountain marathon heaven, big mountains, virtually no paths, and plenty of opportunities to get lost. It will be a good test of your abilities and fortitude to get around the courses  

Competitors delaying entry threatens cancellation – we need to know now if you want to come? 

We are well behind our usual entry numbers for end June with 700 competitors entered when we usually have 1500.  Understandably people have been holding back with the Covid-19 situation however we organize the OMM on a not for profit basis and the challenges of shop closings and reduced product sales means the event will need to be heavily subsidizing this year.  If you are planning to come then we need to know so that we can issue the final commitments with the land owners, marquees, toilets, cartographers and other things that come together for an OMM.  Please enter and If we are unable to run the event then we will be offering every competitors with the following options:  

  1. Exchange your entry for OMM kit. We will provide you with a voucher worth 125% so you get a bit of an apology for having to cancel..  
  1. Defer your entry to next year’s event. This option and the one above would really help us out.  
  1. Full refund on your entry. No fees.  

A bit of help – The price increase will be delayed until the end of July.   

Covid-19 – is OMM being realistic in not cancelling? What are the plans?  

We are currently monitoring the governments guidelines and have worked up a number of ideas where we can be ready should the advice change. It is a bit of a guessing game but so you know our thoughts here are some of our notes. 

HQ and starts – this is our biggest area of confluence on the event.  Toilets are the hardest element to manage as we can increase marquee space to reduce contact and, at worse, we could remove Friday night social time and use postal/digital registration.  Toilets will be increased in numbers and competitors asked to follow strict queuing and cubical cleaning routine.  Starts may be spread over a longer period and possibly from multiple locations. 

Mid Camp – similar challenges to HQ.  We have the contingency to increase the capacity at the site to allow for greater spacing, have planned for each team to have 1 tent per person (the second tent would be handed in and delivered to you at the overnight) and expanding the infrastructure as required. 

Numbers – there maybe a restriction on scale of events. If so we will see if the OMM can be considered to be a number of separate events but if not then places will be allocated in order of entry date. 

These are just some examples of the additional planning work that is going on to ensure we can deliver the event within the current guidelines, all of which is underlined by two key principles: we are governed by the Government advice and regulations; we will not put the event on if we feel we cannot do so safely and in either case you will get a full refund in the worst case. 

Thanks for your help and we look forward to seeing you at a safe distance in October 

Team OMM 

The Original Mountain Marathon was created in 1968 to allow those who love the mountains an opportunity to test their abilities.

“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…

On the start line 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.

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About the OMM…

The UK’s biggest mountain race has shaped the UK outdoor community for 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 individual or collective military training outputs (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 emma@theomm.com 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. The kit check, declaration and safety rules form must be completed, signed and presented at registration.
  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 £35.00) 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 – GPS devices (including mobile phones and watches) may be carried throughout the event 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 (including time and distance), 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.

Event HQ location:

Mountains of Argyll and Bute

As is customary the exact location will be announced summer 2020!


Details to follow when location announced, but we will be encouraging the use of OMM Coaches from Glasgow Airport/rail hub to ensure that we keep the amount of vehicles to a minimum on the narrow roads to the event centre.


The closest airport is Glasgow.  We will be arranging coaches from this location.


Details to follow when location announced


If you are looking to car share or offer spaces in your vehicle you can leave a post on the OMM Competitors Facebook page

Parking will be on grass (tractor available in case of mud!)

Car parking is always at a premium at the locations we choose for the OMM and this year’s location does not have any major roads leading to it so we need to keep car numbers to a minimum.  We would ask, therefore, that you travel at least 2 per vehicle.     To encourage you to do this please be aware that vehicles arriving at the car park with only one occupant will be charged £5.00 (to be donated directly to charity/volunteer groups).  


If arriving on a coach/minibus then please get in touch with emma@theomm.com for details of where to park or drop off.


Please read info in ‘Camping, Campervans and accommodation’ section.

The Event HQ will be located at:

to be announced summer 2020!

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.


Registration will be open from 15:00 hours to 22:30 hours on Friday 23rd October and from 06:00 hours 09:00 on Saturday 24th October.  If registering on Saturday morning please register at least 75 minutes before your start time. Be aware it is approx 3km walk to the start line on Saturday morning.  Competitors are advised to register early to prevent last minute queues.

Please bring your teams completed and signed OMM Kit Check and Declaration, including your team number which will be allocated 2 weeks before the event along with your start time.

At registration each team will be issued with a Sport Ident Timing card/dibber (attached to the wrist), competitors are not able to use their own dibbers as this is used as one of our vital security checks at the end of the event.  The cost of timing cards is included in your entry fee BUT if you lose or damage the dibber you will be charged the cost of replacement (currently £35.00).

Teams may be registered by one member of the team providing the OMM Kit Check and Declaration form has been completed and signed by both team members. There will be no need to present your kit at Registration. However there will be spot checks on equipment at the start, overnight camp and the finish.  Please ensure that the car registration number of THE CAR THAT YOU TRAVELLED IN is included on your declaration form.


As ever there will be an opportunity to stock up on race goodies.

Alongside the OMM range, we will have a great selection of accessories from plenty of great brands.

And of course we’ll have a few special offers, perfect for rewarding yourself after a hard weekend!


Car keys can be deposited at registration or at the start line on Day 1. Collection is only from the Event Centre.  The organisers shall not be responsible for any keys left in their possession and accept no liability for their safekeeping howsoever arising.


For all competitors arriving by coach or 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)
  • 22:00 Catering closes
  • 22:30 Bar closes

On Saturday, Race Day 1 – 06:00 Catering opens

On Sunday, Race Day 2 – 13:00 Hot food and bar open


2020 menu coming soon but see the 2019 menu here!

There will be a pasta party on Friday night and pre-booking for this meal will be available online prior to the event.


There will, of course, 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 hello@barrett.events 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.   You are more than welcome to leave extra tents up in the Friday camping field for the weekend however please be aware that OMM accepts no liability for any property left unattended for the weekend and please ensure you peg down your tent adequately.  It is also possible to camp on Sunday night but please inform us in advance that you will be doing so – contact emma@theomm.com.


You are welcome to bring your campervan/motorhome but it will be parked on grass.    NO hook-ups but portaloos within a few 100m’s walk.

ANY VEHICLES OVER 6.5m in length must contact us in advance.


If arriving on a coach/minibus – thank you!  Please get in touch with emma@theomm.com for details of where to park or drop off.


There are accommodation options for Friday and/or Sunday night within a few miles of the event HQ, more details once the location is announced.

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 each day. Controls locations are marked with a circle and the legend will show your course, 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.  Blank maps will be on display in the refreshment area on Friday evening and Saturday morning.

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 emma@theomm.com 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.  At event registration you will be required to sign the OMM Kit Check and Declaration form which can be viewed and downloaded here.  (Note: team number will be allocated 2 weeks before the event along with your start time)


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 waterproof jacket with hood
  • Taped waterproof trousers
  • Clothing suitable for mountain running and walking
  • Warm layer top
  • Hat, Gloves & Socks
  • Footwear designed for trail and fell 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
  • Pen/pencil and paper capable of being used in wet conditions or fully charged mobile phone.
  • Survival bag (not a sheet)
  • Rucksack
  • Emergency rations
  • Water carrying capability

Spare warm kit and insulated sleeping bag 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 this year 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 under 2 miles walk on paths/tracks.  Please ensure that you leave enough time to get to the start.   Due to the rural location there will be limited toilets available approx 200m from the start.

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.

Map Issue.

All competitors will be issued with a map (2 per team) at the Start line. This will be overprinted with your course, control descriptions, compulsory controls and control closing times – it is very important that you read all this information.  The map is printed on polypropylene synthetic paper that is waterproof, tear resistant, easily folded and 100% recyclable. 

To ensure the start area does not get congested please 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 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 tag on for use the next day. Before you leave the finish area please ensure that you clear your tag.

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/Day 2 Finish. 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.

Kit Checks

Spot checks on equipment will 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!

Please boil all water.

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


Your Day 2 start window will have been printed in the Event programme.

As for Day 1, 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.

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.  Every year some teams miss the seeded start, as they do not check the board. You might have done better than you think!

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.  


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 one of 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 will 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 SI-tag. SI-tags are small plastic pegs that have an electronic chip in one end.  The SI-tag 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 £35.00  The use of your own SI-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


We are currently reviewing our prize structure, your opinions are needed

After this consultation with the community we will update this section.

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 or Extreme Food product and the value of each team prize is shown below.

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.


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.


A family team consists of 2 members who are closely related and from a different generation e.g. father and daughter, grandmother and grandson.


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 emma@theomm.com 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.

Key dates and times for the OMM

On the Friday

  • 15:00 Registration and parking opens
  • 16:00 Hot Food (Pasta party)
  • 22:00 Catering closes
  • 22:30 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*
  • 13:00 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 every 15minutes through the weekend.

Photography – R&R photography will be taking you pictures on you as you cross the finish line each day. Their photos will be available here. https://www.randrphotos.co.uk/


Up to Fri 9 Oct 20.  Changes to your team and to the course you have entered can be made by emailing emma@theomm.com.  Please be aware we cannot guarantee you can change course after 26 September, but will try to accommodate any requests.

After Fri 9 Oct 20.  Amendments to teams can be made at registration.  If making changes at registration the new member of the team must present himself/herself at registration in order to complete the necessary paperwork. It is up to the team to find replacement partners.  Course changes at this point will only be allowed if space is available.  


For any cancellations received up to  27 Jul 20, 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.


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 stuart@theomm.com

Event Coordinator/Competitor queries: Emma Gill emma@theomm.com

Event Communications/Press Officer:  Alistaire McGregor al@theomm.com

Race Coordinator and Controller: Dave Chapman dave@theomm.com

Registration: Sharon Fishwick and team

Communication: Eddy Wane and team.

Car Parking and Coaches: Ryan Greenwood and team from East Lancs Event Support Team

Start Day 1 and Finish Day 2: John and Gerry Ashton and the team from Pendle Forest Orienteers

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 – So you look like you know where you’re going.

Friday night gathering – Food, drink & reliving how badly you got lost last year.

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

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

Post event hot meal – Because a plastic medal don’t re-warm you.

An event team who are advisors to the national parks, governing bodies, & held as the gold standard by other event organisers.