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Brechfa Trail Races
Half marathon and marathon

Brechfa Forest is one of Wales' spectacular hidden secrets. Experience gorgeous routes with open panoramic views, quiet and serene pine forests, and waterfall laden deciduous woods.

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Saturday 14 March 2026

It's incredible to find such vast forestry just 90 minutes from Cardiff! It's easy to be overwhelmed by the size of the place but, fortunately for us, Natural Resources Wales have created winding paths to explore this part of the ancient Glyn Cothi Forest.

A 13 mile loop allows you to choose one or two laps. This is a perfect race as either your A race for a fast trail race or as a part of your training for another race. The benefit of laps for the latter is that you can practice fuelling, carrying your equipment and have some company for those long training runs. Which distance will you choose: half marathon or marathon?

This race is ideal for newer trail runners as the route is mostly on forestry tracks, in contrast to the many technical sections of our races in Machen and Radyr. These races are still challenging though, especially if you're taking on the marathon, but (hopefully!) navigation is easier than many other longer trail races.

That said, many have told us that this is their favourite of all our events - though that may be down to the amazing soup that the Pobl Y Fforest volunteers make for you at the finish!

Our race follows the Wind and Water Trail set out by Natural Resources Wales.

 

What you get

 

A professionally run event with full medical support, aid stations, and free photographs. The route is fully marked and our friendly marshals will be at regular intervals to provide support and, of course, aid station snacks and water.

Every finisher will receive a finishers medal, and there will be trophies for:

1st, 2nd and 3rd male
1st, 2nd and 3rd female
1st male veteran (over 45)
1st female veteran (over 45)

Race details

 

​Date: Saturday 14 March 2026

 

​Marathon race start: 9.00am

Registration: 7.00am to 8:45am

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Half marathon race start: 10:00am

Registration: 7:00am to 9:45am

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There will be a kit check at registration – no kit, no entry. A full kit list and more information is available.

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The venue for the race is:

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Keepers Car Park

Brechfa Forest

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Note: There is limited parking at the venue, but there is parking in nearby Brechfa Village. We will put on a shuttle bus which is included in your entry fee. Please park respectfully in the village itself.

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Costs

Half marathon - £40

Marathon - £50

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Cut offs

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Half marathon and marathon

The final cut off for all races is 5:00pm.

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Disclaimer: We reserve the right to pull entrants if they appear unable to complete the course following medical advice even if they are within the cut off times. The safety of our runners is paramount.

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Travel

Unfortunately there are no trains directly to Brechfa. Please car share if you can to reduce your carbon footprint. 

See note above on parking - we are working on this.

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Facilities

There are toilets at the event venueThere will be snacks and water at the aid stations.

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