Ultra runs in Wales

Find ultra runs in Wales in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Come and get involved in the second St David's Day Dragon Run in the beautiful Dare Valley Country Park in, of course, Wales!

Sun 1 Mar
£16-£35

Aberdare, Mid Glamorgan, UK

St Davids Day Dragon Run

Come and get involved in the second St David's Day Dragon Run in the beautiful Dare Valley Country Park in, of course, Wales!

Trail run
5K run
10K run
Half marathon
Marathon
+ 3 more races

Families
Beginner-friendly
Event village
Park
All ages

Come and join the Dashing Dog Charity run in the picturesque Dare Valley Country Park. Not only is the scenery beautiful but you will earn one of these awesome medals!

Sun 15 Mar
£18-£38

Aberdare, Mid Glamorgan, UK

The Dashing Dog Charity Run | Wales

Come and join the Dashing Dog Charity run in the picturesque Dare Valley Country Park. Not only is the scenery beautiful but you will earn one of these awesome medals!

Road run
5K run
10K run
Half marathon
Marathon
+ 3 more races

Families
Beginner-friendly
Event village
Park
All ages

This event gives participants the opportunity to take in a runnable, beautiful route which follows the North Walian coastline between Prestatyn and Bangor.

Sat 25 Apr
£52.50-£90.50

Prestatyn, Clwyd, UK

North Wales 50K & 100K

This event gives participants the opportunity to take in a runnable, beautiful route which follows the North Walian coastline between Prestatyn and Bangor.

50K ultra run
100K ultra run

Beginner-friendly
Event village
Age 18 & over

Didn't get a ballot entry into The London Marathon? Don't panic, come and experience this event instead and earn a fantastic London-themed medal!

Sun 26 Apr
FREE-£35

Aberdare, Mid Glamorgan, UK

The Nearly But Not Quite London Marathon | Wales

Didn't get a ballot entry into The London Marathon? Don't panic, come and experience this event instead and earn a fantastic London-themed medal!

Trail run
5K run
10K run
Half marathon
Marathon
+ 3 more races

Families
Beginner-friendly
Event village
Park
All ages

The finish line is unique to you: 24 hours after the mass start, the race shall stop and the Solo Runners and Teams furthest South on the National Trail, shall be declared winners.

Sat 9 - Sun 10 May
£95.50-£155.50

Prestatyn, Clwyd, UK

24 Hours South | The Offa's Dyke Ultra

The finish line is unique to you: 24 hours after the mass start, the race shall stop and the Solo Runners and Teams furthest South on the National Trail, shall be declared winners.

24 hrs trail running + 8561 ft ascent

Beginner-friendly
Chip timing
Enter online
GPS tracking
Event village
Rural
Age 18 & over

Come and celebrate 50 years since the release of the iconic Rocky film! Have you got the Eye of The Tiger, the guts to get the glory and the will to rise up to the challenge and run?

Sat 30 May
£18-£35

Aberdare, Mid Glamorgan, UK

Rocky at 50 Run | Wales

Come and celebrate 50 years since the release of the iconic Rocky film! Have you got the Eye of The Tiger, the guts to get the glory and the will to rise up to the challenge and run?

Road run
5K run
10K run
Half marathon
Marathon
+ 3 more races

Families
Beginner-friendly
Event village
Park
All ages

A truly beautiful area of North Wales! The route uses two way-marked 15-mile linear routes either side of the river, to create a spectacular, challenging excursion in and above the valley.

Sat 6 Jun
£53.50

Llangollen, Clwyd, UK

The Llangollen 50K

A truly beautiful area of North Wales! The route uses two way-marked 15-mile linear routes either side of the river, to create a spectacular, challenging excursion in and above the valley.

50 km trail running + 5435 ft ascent

Beginner-friendly
Enter online
Event village
Rural
Age 21 & over

Your chance to take on one of the UK’s most demanding and spectacular trail races, set deep in the heart of Eryri (Snowdonia) National Park, offering a true mountain challenge.

Sat 11 - Sun 12 Jul
£31.99-£319.99

Caernarfon, Gwynedd, UK

Snowdonia Trail Marathon Eryri Events

Your chance to take on one of the UK’s most demanding and spectacular trail races, set deep in the heart of Eryri (Snowdonia) National Park, offering a true mountain challenge.

10K run
Half marathon
Marathon
Ultra run 2

Families
Recycling
Beginner-friendly
Plastic bottle free
Dogs allowed at venue
Music
Event village
Event expo
Mountains
Free venue entry
Sustainability policy
Public transport links
Plastic-free event
Age 17 & over

Who hasn't completed a race, sworn they will never run again and then booked onto another one the following day?!

Sat 25 Jul
£16-£35

Aberdare, Mid Glamorgan, UK

Ooops I Ran It Again | Wales

Who hasn't completed a race, sworn they will never run again and then booked onto another one the following day?!

Road run
5K run
10K run
Half marathon
Marathon
+ 3 more races

Families
Beginner-friendly
Event village
Park
All ages

This regional marked footpath of 32 miles winds it's way through some beautifully remote upland scenery. Start at the town of Corwen in the Dee Valley, and follow the signage up the Dee Valley.

Sun 18 Oct
£51.50

Corwen, Clwyd, UK

Brenig Way 50K Trail

This regional marked footpath of 32 miles winds it's way through some beautifully remote upland scenery. Start at the town of Corwen in the Dee Valley, and follow the signage up the Dee Valley.