There are 56 upcoming ultra races in Wales listed. Next up: Brenig Way 50k Trail (Sunday, 18 October 2026), The Black Beacon (Friday, 30 October 2026), Phoenix South Wales - Zombie Run (Saturday, 31 October 2026).
Upcoming races only, soonest first. Confirm dates and entry details with the organiser.
Corwen · Green Lane Car Park, Corwen
A 50K route from Corwen to Llyn Brenig, with approximately 1,450 metres of ascent. Runners navigate using Brenig Way signs, the supplied GPX file and an event map. Terrain includes lanes and forest trails.
£51.50
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Hay on Wye · Hay on Wye
Trail Race organised by Run Walk Crawl in Hay on Wye. The event runs from 2026-10-30 to 2026-11-01. Minimum age: 18 or older. Online entry deadline: Wednesday 16th September 2026 at 23:00. Published meeting-location reference: ///wicked.gravitate.example.
£50–£160
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Pontypridd · Bike Doctor, Pontypridd, CF37 2PE, United Kingdom
Phoenix South Wales - Zombie Run is organised by Phoenix Running South Wales in Pontypridd. Entry options: 7 Hour Timed Challenge Including 5km, 10km, Half Marathon, Marathon, Ultra; NO MEDAL - 7 Hour Timed Event Including 5km, 10km, Half Marathon, Marathon, Ultra.
£22–£35
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Brecon · Talybont-on-Usk, Brecon, Wales, United Kingdom
Beacons Ultra, Marathon & Half Marathon is organised by Andali Events in Brecon. Entry options: Beacons Ultra; Beacons Trail Marathon; Beacons Half Marathon.
£40–£80
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Swansea · Oxwich, Swansea, SA1 1, United Kingdom
Endurancelife Gower is organised by Endurancelife in Swansea. Entry options: 10K; Half Marathon; Marathon; Ultra. The course surface has not been confirmed.
£35–£71
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Oxwich · Oxwich Bay
Coastal trail races based around Oxwich, with 10 km, half-marathon, marathon and ultra categories. Route lengths can differ from standard road-race distances; check the organiser’s course and kit requirements.
£35–£71
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Merthyr Tydfil · George Town Boys and Girls Club, Merthyr Tydfil
Trail Race organised by OTT Events Limited in Merthyr Tydfil. Minimum age: 18 or older. Online entry deadline: Sunday 1st November 2026. Published meeting-location reference: ///spits.movies.spoken.
£60–£62
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Cardiff · Harbour Drive, Cardiff, CF10 4, United Kingdom
Phoenix South Wales - Lest We Forget 2026 is organised by Phoenix Running South Wales in Cardiff. Entry options: 7 Hour Timed Event Including 5km, 10km, Half Marathon, Marathon, Ultra.
£35
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Moelfre
The Anglesey 3 Peaks 55k Run Challenge takes place in Moelfre on 14 November 2026. Organised by Out Fit. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£61.50
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Aberdare · Dare Valley Country Park, Aberdare, CF44 7PS
Timed running challenge at Dare Valley Country Park, with distances from 3 km to ultra. Runners and walkers are welcome; age-based distance limits apply.
£18–£34
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Treharris · Taff Bargoed Angling Association, Treharris, CF46 6RD, United Kingdom
Phoenix South Wales - Cheeky Fox is organised by Phoenix Running South Wales in Treharris. Entry options: 7 Hour Timed event including 5km, 10km, Half Marathon, Marathon, Ultra.
£35
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Merthyr Tydfil · CF48 1UT, Merthyr Tydfil, United Kingdom
Phoenix South Wales - Christmas Advent Run is organised by Phoenix Running South Wales in Merthyr Tydfil. Entry options: 7 Hour Timed Event Including 5km, 10km, Half Marathon, Marathon, Ultra.
£35
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Prestatyn · Prestatyn Nova Centre
Sea 2 Summit - Offa's Dyke Half/Full/Ultra takes place in Prestatyn on 06 December 2026. Organised by Out Fit. Published venue: Prestatyn Nova Centre. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£38.50–£59.50
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Llanbenwch · Maes Carafanau Llanbenwch, Wrexham Road, Ruthin. LL152SH
5 Trigs Ultra - 24 Hour Ultra Challenge takes place in Llanbenwch on 12 December 2026. Organised by Out Fit. Published venue: Maes Carafanau Llanbenwch, Wrexham Road, Ruthin. LL152SH. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£62.50–£109.50
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Aberdare · Dare Valley Country Park
Trail Race organised by Run Walk Crawl in Aberdare. Minimum age: 18 or older. Online entry deadline: Wednesday 16th September 2026 at 08:00. Published meeting-location reference: ///horns.grumbles.award. Race HQ and finish are at Dare Valley Country Park; the half marathon starts in Resolven.
£42–£62
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Aberdare · Dare Valley Country Park, Aberdare, CF44 7PS
The Snow Globe Gallop Bobble Hat Run - Wales takes place in Aberdare on 20 December 2026. Organised by Saturn Running. Published venue: Dare Valley Country Park, Aberdare, CF44 7PS. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£18–£39
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Pontypridd · Connected Kerb, Gyfeillon Road, Pontypridd, CF37 2PP, United Kingdom
Phoenix South Wales - Frozen Phoenix 2026 is organised by Phoenix Running South Wales in Pontypridd. Entry options: 7 Hour Timed event including 5km, 10km, Half Marathon, Marathon, Ultra.
£35
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Aberdyfi · Aberdovey Village Hall, Neuadd Dyfi, Aberdyfi, Aberdovey LL35 0NR
The Winter Run to the Castle Ultra takes place in Aberdyfi on 16 January 2027. Organised by How Hard Can It Be Events. Published venue: Aberdovey Village Hall, Neuadd Dyfi, Aberdyfi, Aberdovey LL35 0NR. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£45–£66
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Aberdare · Dare Valley Country Park, Aberdare, CF44 7PS
The Milkshake Meander - Wales takes place in Aberdare on 24 January 2027. Organised by Saturn Running. Published venue: Dare Valley Country Park, Aberdare, CF44 7PS. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£18–£35
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Merthyr Tydfil · Penderyn Square Merthyr Tydfil, United Kingdom
A 75-mile or 100-mile winter ultramarathon starting in Merthyr Tydfil on 30 January 2027, with a 40-hour cut-off ending on 31 January. Intended for experienced ultra runners.
£185–£250
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Crickhowell · Crickhowell, Powys
Backyard Ultra organised by Limitless Trails in Crickhowell. Minimum age: 17 or older. Online entry deadline: Thursday 4th February 2027 at 18:00. Published meeting-location reference: ///milkman.chairs.knowledge.
£85
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Brecon · Start: Brecon; finish: Coleg y Cymoedd, Nantgarw, CF15 7QX
A 70K point-to-point ultra following the Taff Trail from Brecon to Nantgarw, near Cardiff. The route is marked and uses former railway and canal paths. The start and finish are different locations; check the organiser’s transport arrangements.
£85
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Aberdare · Dare Valley Country Park, Dare, Aberdare, Wales, CF44 7PS
St David's Day Dragon Run 2027 takes place in Aberdare on 28 February 2027. Organised by Saturn Running. Published venue: Dare Valley Country Park, Dare, Aberdare, Wales, CF44 7PS. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£18–£35
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Crickhowell · Crickhowell, Powys
Trail Race organised by Limitless Trails in Crickhowell. Minimum age: 17 or older. Online entry deadline: Sunday 28th February 2027 at 18:00. Published meeting-location reference: ///plugged.majors.suffer.
£53–£80
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Aberdare · Dare Valley Country Park, Aberdare, CF44 7PS
Running 9 to 5 - Wales takes place in Aberdare on 14 March 2027. Organised by Saturn Running. Published venue: Dare Valley Country Park, Aberdare, CF44 7PS. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£18–£35
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Pontypridd · Connected Kerb, Gyfeillon Road, Pontypridd, CF37 2PP, United Kingdom
Phoenix South Wales - Hedgie Hog Jog is organised by Phoenix Running South Wales in Pontypridd. Entry options: 7 Hour Timed event including 5km, 10km, Half Marathon, Marathon, Ultra.
£35
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Brecon
Ultra Running organised by Run Walk Crawl in Brecon. The event runs from 2027-04-02 to 2027-04-03. Minimum age: 18 or older. Online entry deadline: Wednesday 16th September 2026 at 20:00. Published meeting-location reference: ///unloaded.liberty.awoken.
£50–£99
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Llangynidr · Gilestone Farm, Station Road, Tal Y Bont on Usk, Llangynidr, Powys, LD37JE
Trail Race organised by Limitless Trails in Llangynidr. Minimum age: 16 or older. Online entry deadline: Sunday 11th April 2027 at 18:00. Published meeting-location reference: ///instance.owners.violinist.
£55–£90
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Haverfordwest · Little Haven, Haverfordwest, Wales, United Kingdom
Endurancelife Pembrokeshire is organised by Endurancelife in Haverfordwest. Entry options: 10K; Half Marathon; Marathon; Ultra.
£35–£71
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Prestatyn · Prestatyn Nova Centre
North Wales 50km & 100km takes place in Prestatyn on 24 April 2027. Organised by Out Fit. Published venue: Prestatyn Nova Centre. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£57.50–£99.50
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Llandegla · OnePlanet Adventure, Ruthin Road, Llandegla, LL11 3AA
Last-runner-standing race on forestry trails at Llandegla. Each hourly lap is 5.33km with over 140m of climbing; the event continues until one runner remains.
£130.72
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Prestatyn · Nova Centre, Prestatyn
A 24-hour challenge heading south on Offa’s Dyke Path from Prestatyn. Solo runners and teams travel as far as they can before the fixed finish at noon on 9 May. A separate earlier walking start is offered; check transport and checkpoint arrangements.
£99.50
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Maenclochog · Maenclochog village Green, SA66 7LA
Fell running event at Maenclochog. The published course is 52 km. Ascent is listed as 2150 metres. Minimum age: 18. Advance entry is required. Start arrangements vary; check the organiser’s timetable.
£25
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Llanberis
The UTMB World Series event in Eryri (Snowdonia), based in Llanberis.
Price not confirmed
Trehafod · Trehafod Community Village Hall, Ivor Street, Pontypridd, Rhondda Cynon Taf, CF37 2NF
26.5-mile and 16-mile routes through the Rhondda Valleys, accepting fast walkers and runners from 09:00. All participants must finish by 19:30.
£20–£25
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Aberdare · Dare Valley Country Park, Aberdare, CF44 7PS
Welsh Festival Of Running - Pure24 takes place in Aberdare on 29 May 2027. Organised by Saturn Running. Published venue: Dare Valley Country Park, Aberdare, CF44 7PS. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£34–£120
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Llangollen · Llangollen Leisure Centre, Dinbren Road, Llangollen. LL208TG
The Llangollen 50k takes place in Llangollen on 05 June 2027. Organised by Out Fit. Published venue: Llangollen Leisure Centre, Dinbren Road, Llangollen. LL208TG. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£56.50
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Treharris · B4255, Treharris, CF46 6, United Kingdom
PHOENIX - South Wales - D-Day Military Series Run is organised by Phoenix Running South Wales in Treharris. Entry options: 7 Hour Timed event including 5km, 10km, Half Marathon, Marathon, Ultra; NO MEDAL - 7 hour timed challenge including 5km, 10km, Half Marathon, Marathon, Ultra.
£22–£35
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Merthyr Tydfil · Georgetown Boys & Girls Club Dynevor Street, Georgetown, Merthyr Tydfil, United Kingdom
OTT Ultra-R takes place in Merthyr Tydfil on 19 June 2027. Check the organiser’s page for the route, start arrangements and eligibility.
£65
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Talybont-on-Usk · Henderson Hall, Talybont-on-Usk, Brecon
Mountain trail running in the Brecon Beacons, with 24K and 51K options. Expect climbs, exposed sections and a mandatory kit list.
£46.20–£79.80
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Brecon · Henderson Hall, B4558, Brecon, LD3 7, United Kingdom
RunThrough Trails Brecon Beacons 51k & 24k is organised by RunThrough Events in Brecon. Entry options: 24k; 51k.
£46–£78
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Whitchurch, Cardiff · Cardiff Harlequins Rfc, Diamond Ground, Forest Farm Road, Whitchurch, Cardiff, CF14 7JN
Ultra Running organised by Ridge Runners in Whitchurch, Cardiff. Published options: 44 Miles; 33 Miles. Minimum age: 18 or older. Online entry deadline: Sunday 8th August 2027. Published meeting-location reference: ///dress.joined.rate.
£85–£95
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Aberdyfi · Aberdovey Village Hall, Aberdovey LL35 0NR
Run to the Castle Ultra takes place in Aberdyfi on 14 August 2027. Organised by How Hard Can It Be Events. Published venue: Aberdovey Village Hall, Aberdovey LL35 0NR. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£45–£70
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Chepstow · Chepstow Castle Bridge Street
Dragon Slayer Ultra takes place in Chepstow on 29 August 2027. Check the organiser’s page for the route, start arrangements and eligibility.
£40
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St Davids · Celtic Camping, Pwll Caerog Farm, St Davids, Haverfordwest , United Kingdom
A 250km running challenge based near St Davids from 13–19 September 2027. Individual fundraising and non-fundraising entries have different commitments; see entry conditions.
£1,305.25
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Crickhowell · Crickhowell, Powys
Backyard Ultra organised by Limitless Trails in Crickhowell. Minimum age: 17 or older. Online entry deadline: Thursday 16th September 2027 at 18:00. Published meeting-location reference: ///milkman.chairs.knowledge.
£75–£100
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Llanberis · Llanderis, Y Ganolfan. LL554UR
A continuous 295km mountain ultra from Llanberis across Yr Wyddfa, Cadair Idris and Pen y Fan, finishing at Storey Arms. The published route has over 13,000m of ascent. Solo entry is £415; check experience, kit and support requirements before entering.
£415
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Penrhyndeudraeth · Rhyd-y-benwych
The MTC Hafren is organised by Ultra Running Ltd in Penrhyndeudraeth. Entry options: Standard Solo. The course surface has not been confirmed.
£80
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Penrhyndeudraeth · Rhyd-y-benwch
The MTC Severn Challenge is organised by Ultra Running Ltd in Penrhyndeudraeth. The published event dates run from 2028-02-16 to 2028-02-20. Entry options: Solo - The '7' Challenge. The course surface has not been confirmed.
£795
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Caersws · Maesmawr, Caersws, Powys SY17 5SB,
The MTC Severn Plod Ultra is organised by Ultra Running Ltd in Caersws. Entry options: Standard Solo. The course surface has not been confirmed.
£90
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Holyhead · Holyhead, Wales, United Kingdom
MTC Angelystor is organised by Ultra Running Ltd in Holyhead. Entry options: Angelystor 2028. The course surface has not been confirmed.
£90
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Caernarfon · Caernarfon, Wales, United Kingdom
MTC Cerridwen is organised by Ultra Running Ltd in Caernarfon. Entry options: MTC Cerridwen. The course surface has not been confirmed.
£90
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Barmouth · Barmouth, Wales, United Kingdom
MTC Gelert is organised by Ultra Running Ltd in Barmouth. Entry options: MTC Gelert. The course surface has not been confirmed.
£90
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Llanidloes · Llanidloes, Wales, United Kingdom
MTC Pendragon is organised by Ultra Running Ltd in Llanidloes. Entry options: MTC Pendragon. The course surface has not been confirmed.
£90
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Hereford · Glasbury, Hereford, England, United Kingdom
MTC Afanc is organised by Ultra Running Ltd in Hereford. Entry options: MTC Afanc. The course surface has not been confirmed.
£90
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Merthyr Tydfil · Merthyr Tydfil, Wales, United Kingdom
MTC Y Draig Goch is organised by Ultra Running Ltd in Merthyr Tydfil. Entry options: MTC Y Draig Goch. The course surface has not been confirmed.
£90
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