The ONER

Introduction:

in Circa 2007 a man asked Votwo Events if he could run the Jurassic Coast Challenge (3 marathons in 3 days) in ‘One go’. We cant remember if we laughed or cried at the idea but the answer was of course ‘Yes’, and The ONER was born.

After a brief hiatus, during which our friends at Brutal Events took the reins and did a fantastic job, The ONER is back under the organization of Epic Endurance Events Ltd, with Votwo Events providing support.

Billed as one of the toughest foot races on the UK coastline the event sees about 100 runners take on the 85mile route within 24hrs. Run, walk or crawl was the original event slogan and it still stands today 16 years later.

Terrain and the route

The Jurassic coast line is well known for its spectacular views and challenging hills. The route takes in a variety of terrain from coastal footpath to beaches and tracks. 

The start point is just outside Charmouth and the course runs from West to East. The ONER will finish at the National Trust Shell Bay Car Park, Studland. Many runners will be pleased to note the route still includes the whole circumnavigation of Portland. 

This is ardous costal route following the Jurassic Coast foot path. The route crosses exposed cliff areas and parts are undertaken in the hours of darkness.

If access to the planned is restricted for any reason (inc adverse weather) an alternative will be used where possible. This could take the form of a out and back route.

Event HQ and Registration:

Masonic Lodge Portland, Victoria Square, Portland, Dorset, DT5 1AL

Distances/prices:

£210. ‘The ONER’. 140KM in one go (24hrs)

Schedule:

Sat DATE COMING SOON FOR 2026

10:00 Registration opens for the ONER

11:00 Board transport to the start point

12:00 (approx) Start.

12:00 Sunday 30th. Cut off

Accommodation:

As Weymouth and Portland are well provided for holiday towns there is no shortage of accommodation available. Here are a couple of suggestions below. Be sure to book early!

  • The Chesil Beach Holiday Park. 01305833103

  • The Royal Breakwater Hotel, Castletown, Portland, 01350 820476

  • Portland Heights Hotel, Yeates Road, Tophill, Portland, 01305 821361

  • The Portland Lodge, Easton Lane, Portland, 01305 860269

  • Hotel Aqua, Castletown, Portland, 01305 860269

  • Cove Holiday Park, Pennsylvania Road, Wakeham, Portland, 01305 821286

  • Swallows Rest, (Offers camping and motorhome hookups) Martleaves Farm, South Road, Weymouth, 01305 78525

  • If any runners would like to stay on site in a campervan @ HQ, they will need to book a space via http://www.wpnsa.org.uk/campervans-and-caravans or by calling reception on 01305 866000. The cost is £32 per night (2025 price).

Checkpoints (CPs)

These are located approximately every 10KM. At each CP you will be ‘checked’ in by the CP staff and your time logged. This means we know where you are on the course and if you are late for a checkpoint we can assist you. 

All the CPs will be stocked with energy bars, jelly babies, salty snacks, filled rolls, water, squash, and coke. The half way point will serve hot food and at the finish point a bowl of hot homemade soup will await you. The event medics will be available at the CPs.

Transportation:

Coachs will transport runners from the event HQ/carpark area to the start point and back again from the finish point to the HQ/carpark area. Mini busses will pick up any retired runners on the course and return them to the event HQ.

Whats included in the entry fee:

  • GPS tracker, supplied by Geo Tracks

  • Event branded t-shirt

  • Food and drink on the course at each check point

  • Transport from the event HQ to the start and back from the finish

  • Bespoke finishers medal

  • Free parking at the event HQ

  • Medical cover

  • On course support and mini bus pick up for retired participants

  • Event information pack

Checkpoint Cut Offs.

Particpants of the ONER are required to maintain a pace of no less than 5.8KMPH in order to complete the circa 140KM course is 24Hrs.

Any participant outside of this pace will be politely asked to retire from the event at a check point. Transport will be provided to repatriate them to the event HQ.

To see the cut off time for each check point, please scroll up the page to the Geo Tracks embedded map and click on each check point for the relevant cut off.

CP close times will be issued to you along with your actions on emergency card.

Medical assistance:

The course is covered by the medical support team. Every morning at challenge registration the medics will be available to sort out any blisters, tape feet up etc.

Drop Bags

You are allowed small, individual CP bags. Label them clearly and place them in the numbered boxes at registration. It is your responsibility to place them in the correct boxes, they will not be checked.

What are the rules?

Follow the route as closely as possible.

No littering - if you are caught dropping rubbish, you will be DQ'd.

You must wear your high viz and red tail light at sundown.

You must carry ALL the items on the kit list (if you are caught without it, you will be pulled from the event).

During the event if you are really struggling, a support runner can join you for one CP section (CP7 to CP8 for example), but NO pacers are allowed on this event.

What happens if I need to pull out?

Make your way to the next CP. If you are unable to do that, either call the race director and make your location known or alert the next runner. You will then either be dropped back to Portland or Studland, depending on your location and the time of day. The Brutal staff will do their best to get you to your required location, but please understand that you maybe waiting at the CP until such time that transport can be arranged.

Kit list:

Whilst taking part in the ONER it is compulsory for you to carry the following equipment. This kit will be checked at the event registration. We will be enforcing the policy of no kit, no run. If the worst happens to you any of the below kit could really make a difference to your survival and wellbeing.

Essential kit: (to be carried on your person or in your rucksack)

  • A means of navigation  

  • Actions on sheet (issued at registration)

  • Whistle  

  • Compass (make sure your compass is attached to you or your kit)  

  • Waterproof top  

  • Long trousers or tights  

  • Gloves (waterproofed in a plastic freezer bag)  

  • Hat (waterproofed in a plastic freezer bag) 

  • Nutrition Bar (for Emergency)

  • Small torch with spare batteries  

  • More than 400ml of water or other drink  

  • A lightweight piece of warm clothing (waterproofed) 

  • A fully charged working mobile phone (waterproofed)

  • A notepad and pencil with your name and your mobile number written on it (waterproofed)

You must carry all the kit on the kit list. No exceptions.

The ONER 85 Miler - GPX File Download

The Oner – Officially Recognised by ITRA and UTMB


Proudly awarded an ITRA Performance Index of 5 and qualifying for the UTMB 100M category, The Oner is one of the UK's ultimate endurance challenges. Covering 85 brutal miles along the Jurassic Coast within a strict 24-hour cutoff, this is a test of resilience, speed, and true mental grit. Completing The Oner isn't just a finish — it's a badge of honour recognised on the world stage.