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The Offa’s Dyke footpath is is a 182 miles, and is a cherished National Trail. Offa’s Dyke is an earthwork defence built by King Offa of Mercia in 780AD. It separated Mercia and Powys (to some extent what are England and Wales today). The race is a few miles longer, due to lead in and out of some checkpoint locations, so stands at 185 miles. A shorter 100 mile route is also available.

How to enter the King Offa's Dyke Race

  1. Icon

    Offa's Dyke

    Run 185mi
    Event passed
  2. Icon

    Mercian Challenge

    Run 100mi
    Event passed

King Offa's Dyke Race routes


The route passes through the Wye Valley AONB (Area of Outstanding Natural Beauty), then climbs the Black Mountain skirting the edge of the Brecon Beacons National Park, passes through the Shropshire Hills AONB and finally the Clwyidian Range and Dee Valley AONB. The scenery is outstanding, but hand in hand with that, the relentless hills are very demanding.

Event Details

What’s Included

Enrtry into the 185 Mile race includes:

  • 10 indoor checkpoints (1 outdoor checkpoint – campsite). All with experienced volunteers
  • All food and drink for the duration of the event
  • Live GPS tracking – by RaceDrone
  • High quality technical fabric commemorative race shirt
  • Award trophy to all finishers
  • Meal, shower and changing facilities at the finish in Prestatyn
  • Drop bag and end bag transport
  • Comprehensive participant guide emailed one month before the event
Raceday Logistics


12:00 to 18:00 Registration and kit check Chepstow

18:00 to 19:00 Race Briefing

19:00 Transport to Start of Offa’s Dyke National Trail

20:00 Start of Offa’s Dyke Race and Mercian Challenge


14:00 End of The Mercian Challenge in Montgomery

14:00 End of The Offa’s Dyke Race in Prestatyn


King Offa's Dyke Race weather forecast

Partly cloudy throughout the day.

Predicted highs
Predicted lows
IconModerate breeze possible, up to 12mph

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