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Event details
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Take on the oldest Marathon in Wales. Great for first time and experienced racers alike, the course winds along the Welsh Coast, leaving runners with stunning views. Come for the bespoke finisher's medal or to be part of this historic race.

Review summary

1 Review
  • Course
  • Organisation
  • Atmosphere


Lauren S
"Very well delays at the start. Enjoyed the experience but crowds..."
See all reviews

How to enter the Great Welsh Marathon

  1. Marathon

    Run 26.2mi
    Event passed
  2. Half Marathon

    Run 13.1mi
    Event passed

Great Welsh Marathon routes

The Great Welsh Marathon and The Great Welsh Half Marathon will start and finish at the Pembrey Country Park in Carmarthenshire.

The route will hug the coastline past Burry Port and through to Llanelli.

This is a fast, flat race and certainly one where runners can aim for a PB.

Event Details

What’s Included
  • Finisher's T-shirt
  • Bespoke Medal
  • Water Stations
  • Energy Gels
  • Marshalled Course
  • Closed Road Event
Raceday Logistics

Your race pack will be posted out to you around 2 weeks before the race.

Your race pack will contain your race number and integrated timing chip, along with safety pins.


There is no fee for spectators to view this event.


If you would like to volunteer for this event, please contact [email protected]

All you need is lots of enthusiasm, a smile and a positive attitude.


Will Water Be Available On The Course?

Water Stops will Be every 3 Miles.

Is There A Cut Off Time?

There is a cut off time of 4 hours for the half marathon and 6 hours for the full.

Are There Toilets On The Course?

There are numerous toilets stationed throughout the course.

Can I Run In Fancy Dress?

Runners are allowed to run in fancy dress.

Can I Run With Headphones?

Runners are allowed to run with headphones, however please ensure you can still hear all the race briefing information.

Great Welsh Marathon weather forecast

Mostly cloudy throughout the day.

Predicted highs
Predicted lows
IconModerate breeze possible, up to 11mph

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Wales’ largest independent running event management company established in 2014



Great Welsh Marathon reviews

3 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • Did the Marathon in 2019

    Very well delays at the start. Enjoyed the experience but crowds thin on the ground in places. Not sure I would sign up to a marathon with two loops of the course again-mentally tough watching half marathon runners finish whilst starting second loop.
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