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Challenge description

Challenge description

The Line 300 is an extreme challenge. You have 6 days to run a 330 mile route totally unsupported. Based on the Greenwich Meridian Trail, the route will start at Sand Le Mere in the north and end at Peacehaven on the south coast.

You will be expected to sleep rough and provide for yourself without any outside assistance. This challenge is a true test of self management.


7th July 2024




Enter Line 300


You should have excellent ultra running experience and experience of self support. You must have completed at least one 100 miler as a qualifier. Please only apply and make payment if you meet the required pre-requiste (entries can be rejected and refunded at the RD's discretion).


No refunds, transfers, or deferrals.

Contact us

Questions? Contact us

Email Mark to find out more about The Line:, or follow our Facebook group!

Registation infomation

Registration information

There will be a mass start on Sunday 7th July 2024 at Midday.

The distance must be completed within 6 days (144 hours, Finishing by Sat 13th July, 12pm.)

What's included

What's included


  • 6 days use of a Track Trail® tracker and map.

  • A GPX file showing the intended route you should follow.

  • A roadbook describing the route, includes map extracts.

  • Finisher T-shirt.

  • Bespoke finisher Medal.



  • No refunds, no deferrals.

  • You must not come if you feel unwell/have any Covid symptoms.

  • There will be a mass start on Sunday 7th July 2024 at Midday. The distance must be completed within 6 days (144 hours, Sat 13th July 12pm).​​

  • You must provide proof of passage through several towns on route. These will be listed in your roadbook. These will be required in the form of dated receipts, dated photographs and answers to questions. Your road book will be checked and validated at the end of the race. We will also carry out live 'spot checks' on competitors on route.​

  • You must carry everything you think you may need and provide for yourself. ​

  • No sticks.

  • You can use shops, cafes etc.

  • ​You are not allowed a crew or outside assistance.​

  • You are expected to 'bivvy'/sleep rough.​

  • You cannot use hotels, BnB's etc or enter any vehicle.​

  • The entire route must be completed on foot using navigation based on the GPX provided along with your own maps.​

  • To complete the challenge you must be able to cover 50 miles per 24 hour period.​

  • You are responsible for your actions on route.

  • We are not supporting you in any shape or form between the start and finish. If you are in serious trouble you must have an emergency contact that can come to your aid.

  • If you need to retire you must make your own arrangements.

  • You need to make your own arrangements to and from both start and finish locations.


The line 300 results 2023 here 

2023 results
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