Portland Loop Challenge – Half Marathon

6th June 2026

IIntroduction

Take on a rugged half marathon around the Isle of Portland as part of an Epic Endurance event day on the Jurassic Coast.

The Portland Loop Challenge is designed for runners who want a tough but achievable coastal challenge. Covering 13.1 miles around Portland, the route takes in dramatic sea views, exposed clifftop sections and constantly changing terrain.

This is not a road half marathon built for PBs. It is a proper endurance-style half marathon with a raw coastal feel, ideal for runners who enjoy a challenge and want to be part of a unique event atmosphere.

With Event HQ based on Portland and The Oner taking place on the same day, the whole day will have a real endurance event feel from start to finish.

Terrain

The Portland Loop Challenge takes runners on a tough and scenic half marathon around the Isle of Portland. Expect coastal paths, exposed sections, road, tracks and rolling terrain throughout. Portland is known for its rugged coastline, big views and constant changes underfoot, making this a proper challenge rather than a fast, flat half marathon.

Event HQ

The Event HQ will be based at Portland Masonic Hall, 1 Victoria Square, Portland, Dorset, DT5 1AL. This will act as registration, briefing point, finish area and reception. It will also be the place for runners to ask questions, collect information and relax after finishing. This is the same HQ format you use on JCC.

Event HQ:

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

Distance / price

13.1 miles / Half Marathon
£40

Schedule:

  • 11:00 Registration at the event HQ

  • 11:45 Brief

  • 12:00 Start

Whats included in the entry fee:

  • GPS tracker, supplied by Geo Tracks

  • Live view GPS tracking course maps

  • Event Support

  • Food and drink on the course

  • GPX route file

  • Bespoke finishers medal

  • Free parking at the event HQ

  • Medical cover

  • A tough and memorable coastal half marathon.

Checkpoints (CPs)

A checkpoint will be located at Portland Bill, approximately 5 miles into the route.

The checkpoint will be stocked with a range of refreshments, including:

  • Water

  • Juice and Coke

  • Fresh fruit (orange, banana, watermelon)

  • Salty snacks

  • Flapjacks

  • Sweets

This checkpoint is designed to give runners a chance to refuel and reset before continuing along the course.

Medical assistance:

The route is covered by our medical support. Please use the supplied phone numbers on your actions on sheet or report at a checkpoint.

Kit list:

Whilst taking part in the challenge it is compulsory for you to carry the following equipment. Each day at challenge registration you will be asked to prove you have certain pieces of kit on the list. If you don’t have this kit you will not be allowed to participate in the event. 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 the difference to your survival and wellbeing.  

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

    • Navigation Device. (GPS watch/ Garmin device or Map and compass.)

    • Waterproof top & long trousers.

    • Warm top. (sealed in a waterproof bag)

    • Hat & gloves. (sealed in a waterproof bag)

    • Emergency food. (e.g., Nutrition Bar or similar)

    • Torch & spare batteries.

    • At least 400ml of water.

    • High visibility item. (strips on rucksack are acceptable)

    • Folding Cup

    • Fully Charge Mobile Phone.

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


Portland Island Loop GPX File Download

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