Saturday, 7 Nov 2026 · Entry status unknown
Beacons Marathon
Talybont-on-Usk · Wales
Surface: Mixed
Organised by Andali Events
- Published distance
- 26 miles
An individual marathon from Talybont-on-Usk.
Fixed-distance marathon
Official organiser-labelled marathon option is 26 miles over trail, mountain, canal and road.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Talybont-on-Usk
Official organiser-labelled marathon option is 26 miles over trail, mountain, canal and road.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: officially named event town/locality centre. This is not a verified start-line point. Official event-location evidence: https://www.andalievents.com/events/beacons Location source (opens in a new tab)
Saturday, 7 Nov 2026 · Entries closed
Endurancelife Gower Marathon
Oxwich Bay event base, Gower · Wales
Surface: Trail
Organised by Endurancelife
- Published distance
- 27.5 miles
An individual marathon from Oxwich Bay.
Fixed-distance marathon
Organiser-labelled trail marathon, published at 27.5 miles. Grass, moor, beach and rock; distinct ultra not imported.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Oxwich Bay
Field-scoped check 2026-11-06: The organiser explicitly marks bookings closed for this 7 November 2026 distance. The event is still scheduled. Other facts retain their earlier verification dates.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Event base: approximate postcode area. Current official Endurancelife page explicitly identifies Oxwich Bay as shared event location/base. Reused separately verified onshore Oxwich Bay postcode geography from the official RTT venue address; separate Endurancelife source is retained. This is the event base only: half marathon has optional coach transport to a separate start, which is not claimed here. Offshore Wikidata bay centre Q7115779 was rejected. No unrelated ultra facts changed. Reused geographic point originally checked 2026-09-14T17:01:01.200223Z. Location source (opens in a new tab)
Geographic location source 1 (opens in a new tab)
Saturday, 14 Nov 2026 · Entry status unknown
Lest We Forget — Marathon
Norwegian Church Arts Centre, Cardiff Bay · Wales
Surface: Road
Organised by Phoenix Running South Wales
- Published distance
- Marathon; 5.3 km / 3.28 mile laps
A timed running event with an officially recognised marathon option at Norwegian Church Arts Centre, Cardiff Bay.
Marathon option in a timed challenge
Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Series: Phoenix Running South Wales
Start: Norwegian Church Arts Centre, Cardiff Bay
Opened official page confirms date, venue and an explicit marathon completion option. Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.phoenixrunning.co.uk/events/south-wales-lest-we-forget-2026 Location source (opens in a new tab)
Saturday, 21 Nov 2026 · Entry status unknown
The Smurf Run — Marathon
Dare Valley Country Park, Aberdare · Wales
Surface not confirmed
Organised by Saturn Too Limited
- Published distance
- Marathon: 6 laps of 4.37 miles / 7 km
A timed running event with an officially recognised marathon option at Dare Valley Country Park, Aberdare.
Marathon option in a timed challenge
Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Series: Saturn Too Limited
Start: Dare Valley Country Park, Aberdare
Opened official page confirms date, venue and an explicit marathon completion option. Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.saturnrunning.co.uk/e/the-smurf-run-wales-15042 Location source (opens in a new tab)
Saturday, 28 Nov 2026 · Entry status unknown
Cheeky Fox — Marathon
Parc Taf Bargoed, Trelewis · Wales
Surface: Mixed
Organised by Phoenix Running South Wales
- Published distance
- Marathon; 5.3 km / 3.28 mile laps
A timed running event with an officially recognised marathon option at Parc Taf Bargoed, Trelewis.
Marathon option in a timed challenge
Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Series: Phoenix Running South Wales
Start: Parc Taf Bargoed, Trelewis
Opened official page confirms date, venue and an explicit marathon completion option. Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.phoenixrunning.co.uk/events/south-wales-cheeky-fox Location source (opens in a new tab)
Saturday, 28 Nov 2026 · Entry status unknown
Machen Trail Marathon
Machen Welfare Ground, Machen · Wales
Surface: Trail
Organised by Ridge Runners
- Published distance
- 26ish miles
A marathon route starting in Machen Welfare Ground, Machen.
Fixed-distance marathon
Organiser-labelled trail marathon; exact published distance retained. Opened official sources support the date, individual marathon, start locality and published distance. Official finish checkpoint labels the marathon distance 26ish miles; retained as approximate rather than normalised. Some sections require following the provided route independently.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Machen Welfare Ground, Machen
Opened official sources support the date, individual marathon, start locality and published distance. Official finish checkpoint labels the marathon distance 26ish miles; retained as approximate rather than normalised. Some sections require following the provided route independently.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.ridgerunners.co.uk/machen-races Location source (opens in a new tab)
Sunday, 29 Nov 2026 · Entry status unknown
Christmas Advent Run — Marathon
Merthyr Tydfil Leisure Centre · Wales
Surface: Road
Organised by Phoenix Running South Wales
- Published distance
- Marathon; 5.3 km / 3.28 mile laps
A timed running event with an officially recognised marathon option at Merthyr Tydfil Leisure Centre.
Marathon option in a timed challenge
Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Series: Phoenix Running South Wales
Start: Merthyr Tydfil Leisure Centre
Opened official page confirms date, venue and an explicit marathon completion option. Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.phoenixrunning.co.uk/events/south-wales-christmas-advent-run-2026 Location source (opens in a new tab)
Saturday, 5 Dec 2026 · Entry status unknown
Christmas Jumper Run — Marathon
Parc Taf Bargoed, Trelewis · Wales
Surface: Road
Organised by Phoenix Running South Wales
- Published distance
- Marathon; 5.3 km / 3.28 mile laps
A timed running event with an officially recognised marathon option at Parc Taf Bargoed, Trelewis.
Marathon option in a timed challenge
Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Series: Phoenix Running South Wales
Start: Parc Taf Bargoed, Trelewis
Opened official page confirms date, venue and an explicit marathon completion option. Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.phoenixrunning.co.uk/events/south-wales-christmas-jumper-run-2026 Location source (opens in a new tab)
Sunday, 6 Dec 2026 · Entry status unknown
Sea 2 Summit — Offa's Dyke Full Marathon
Nova Centre, Beach Road West, Prestatyn · Wales
Surface: Trail
Organised by OutFit Personal Fitness Ltd
- Published distance
- Full Marathon
A marathon route starting in Nova Centre, Prestatyn seafront.
Fixed-distance marathon
Organiser-labelled trail marathon; exact published distance retained. Opened official sources support the date, individual marathon, start locality and published distance. Explicit individual full marathon starts at Prestatyn and finishes on Moel Gyw summit. Exact numeric total not published in opened details; do not reuse the ultra 55.5 km. Two start-time choices are not separate editions.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Nova Centre, Prestatyn seafront
Opened official sources support the date, individual marathon, start locality and published distance. Explicit individual full marathon starts at Prestatyn and finishes on Moel Gyw summit. Exact numeric total not published in opened details; do not reuse the ultra 55.5 km. Two start-time choices are not separate editions.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Race area: approximate postcode area. Preserved official event-specific catalogue location explicitly names Nova Centre, Prestatyn. Current public Prestatyn Town Council search result identifies Nova, Beach Road West, Prestatyn, Denbighshire LL19 7EY. Search-snippet geographic address evidence only; attempted /nova/ path was not readable. Town council office at7NantHallRoadLL19 9LR is a separate footer address and is NOT used. Approximate venue postcode only; source page retrieval limitation explicitly disclosed. Preserve any originally valid baseline point. Postcodes.io postcode centroid: approximate postcode location, not exact start. Apply only to listed editions where applicability is explicitly bounded. Location source (opens in a new tab)
Geographic location source 1 (opens in a new tab)
Saturday, 12 Dec 2026 · Entry status unknown
Celtic Trail Marathon
Dare Valley Country Park, Aberdare · Wales
Surface: Trail
Organised by Run Walk Crawl
- Published distance
- 26 miles
A marathon route starting in Dare Valley Country Park, Aberdare.
Fixed-distance marathon
Organiser-labelled trail marathon; exact published distance retained. Opened official sources support the date, individual marathon, start locality and published distance. The URL retains 2024 but current page explicitly announces 12 December 2026. Circular marathon differs from the linear half and 34-mile ultra.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Dare Valley Country Park, Aberdare
Opened official sources support the date, individual marathon, start locality and published distance. The URL retains 2024 but current page explicitly announces 12 December 2026. Circular marathon differs from the linear half and 34-mile ultra.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.runwalkcrawl.co.uk/winter-celtic-trail-races-2024 Location source (opens in a new tab)
Sunday, 20 Dec 2026 · Entry status unknown
The Snow Globe Gallop — Marathon
Dare Valley Country Park, Aberdare · Wales
Surface not confirmed
Organised by Saturn Too Limited
- Published distance
- Marathon: 6 laps of 4.37 miles / 7 km
A timed running event with an officially recognised marathon option at Dare Valley Country Park, Aberdare.
Marathon option in a timed challenge
Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Series: Saturn Too Limited
Start: Dare Valley Country Park, Aberdare
Opened official page confirms date, venue and an explicit marathon completion option. Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.saturnrunning.co.uk/e/the-snow-globe-gallop-bobble-hat-run-wales-14705 Location source (opens in a new tab)
Sunday, 27 Dec 2026 · Entry status unknown
Frozen Phoenix — Marathon
Barry Sidings Country Park, Pontypridd · Wales
Surface: Road
Organised by Phoenix Running South Wales
- Published distance
- Marathon; 5.3 km / 3.28 mile laps
A timed running event with an officially recognised marathon option at Barry Sidings Country Park, Pontypridd.
Marathon option in a timed challenge
Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Series: Phoenix Running South Wales
Start: Barry Sidings Country Park, Pontypridd
Opened official page confirms date, venue and an explicit marathon completion option. Official page expressly offers a marathon within a seven-hour timed challenge on published 5.3 km / 3.28 mile laps; not a conventional fixed-distance start. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.phoenixrunning.co.uk/events/south-wales-frozen-phoenix-2026 Location source (opens in a new tab)
Saturday, 16 Jan 2027 · Entry status unknown
Run to the Castle Marathon
Neuadd Dyfi, Aberdyfi · Wales
Surface: Mixed
Organised by How Hard Can It Be Events
- Published distance
- Marathon
A marathon route starting in Neuadd Dyfi, Aberdyfi.
Fixed-distance marathon
Organiser-labelled trail marathon; exact published distance retained. Opened official sources support the date, individual marathon, start locality and published distance. Marathon option ends in Barmouth; 42-mile ultra finishes Harlech. Exact marathon miles not specified on official page, so third-party 27 miles not adopted. Mixed beach, tracks and pavements.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Series: Run to the Castle
Start: Neuadd Dyfi, Aberdyfi
Opened official sources support the date, individual marathon, start locality and published distance. Marathon option ends in Barmouth; 42-mile ultra finishes Harlech. Exact marathon miles not specified on official page, so third-party 27 miles not adopted. Mixed beach, tracks and pavements.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.codrc.co.uk/e/the-winter-run-to-the-castle-ultra-12071 Location source (opens in a new tab)
Sunday, 24 Jan 2027 · Entry status unknown
The Milkshake Meander — Marathon
Dare Valley Country Park, Aberdare · Wales
Surface not confirmed
Organised by Saturn Too Limited
- Published distance
- Marathon: 6 laps of 4.37 miles / 7 km
A timed running event with an officially recognised marathon option at Dare Valley Country Park, Aberdare.
Marathon option in a timed challenge
Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Series: Saturn Too Limited
Start: Dare Valley Country Park, Aberdare
Opened official page confirms date, venue and an explicit marathon completion option. Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.saturnrunning.co.uk/e/the-milkshake-meander-wales-15751 Location source (opens in a new tab)
Sunday, 14 Feb 2027 · Entry status unknown
Taff Xtreme Marathon
Merthyr Tydfil Leisure Centre · Wales
Surface: Trail
Organised by Run Walk Crawl
- Published distance
- 26.2 miles
A marathon route starting in Merthyr Tydfil Leisure Centre.
Fixed-distance marathon
Organiser-labelled trail marathon; exact published distance retained. Opened official sources support the date, individual marathon, start locality and published distance. Marathon starts by Merthyr Leisure Centre and finishes Nantgarw. The 47.5-mile Brecon option is separate. Registration at Nantgarw is not the start.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Merthyr Tydfil Leisure Centre
Opened official sources support the date, individual marathon, start locality and published distance. Marathon starts by Merthyr Leisure Centre and finishes Nantgarw. The 47.5-mile Brecon option is separate. Registration at Nantgarw is not the start.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.runwalkcrawl.co.uk/brecon-to-cardiff-xtreme-2027 Location source (opens in a new tab)
Sunday, 28 Feb 2027 · Entry status unknown
St David's Day Dragon Run — Marathon
Dare Valley Country Park, Aberdare · Wales
Surface not confirmed
Organised by Saturn Too Limited
- Published distance
- Marathon: 6 laps of 4.37 miles / 7 km
A timed running event with an officially recognised marathon option at Dare Valley Country Park, Aberdare.
Marathon option in a timed challenge
Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Series: Saturn Too Limited
Start: Dare Valley Country Park, Aberdare
Opened official page confirms date, venue and an explicit marathon completion option. Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.saturnrunning.co.uk/e/st-davids-day-dragon-run-2027-14939 Location source (opens in a new tab)
Saturday, 13 Mar 2027 · Entry status unknown
Brechfa Trail Marathon
Keepers Car Park, Brechfa Forest · Wales
Surface: Trail
Organised by Ridge Runners
- Published distance
- Two laps of a 13 mile loop
A marathon route starting in Keepers Car Park, Brechfa Forest.
Lapped marathon
Two laps of the published 13-mile trail loop.
Organiser-labelled trail marathon; exact published distance retained. Opened official sources support the date, individual marathon, start locality and published distance. Official dated page and linked Fabian4 agree 13 March 2027. A stale entry-closing date still says 2026; availability left unknown.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Keepers Car Park, Brechfa Forest
Opened official sources support the date, individual marathon, start locality and published distance. Official dated page and linked Fabian4 agree 13 March 2027. A stale entry-closing date still says 2026; availability left unknown.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Event venue: approximate race area. Current official 2027 shared event page explicitly names Keepers Car Park as the venue and links this one-loop GPX for both distances. The route first point is used as a representative venue-area point; its last point is about51m away. GPX internal recording name is2023, but current organiser continues to link it. No exact start inferred from recording time. NRW linked site map independently identifies Keepers; Brechfa village is separate parking/shuttle pickup and not substituted. Location source (opens in a new tab)
Geographic location source 1 (opens in a new tab)
Geographic location source 2 (opens in a new tab)
Sunday, 14 Mar 2027 · Entry status unknown
Running 9 to 5 — Marathon
Dare Valley Country Park, Aberdare · Wales
Surface not confirmed
Organised by Saturn Too Limited
- Published distance
- Marathon: 6 laps of 4.37 miles / 7 km
A timed running event with an officially recognised marathon option at Dare Valley Country Park, Aberdare.
Marathon option in a timed challenge
Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Series: Saturn Too Limited
Start: Dare Valley Country Park, Aberdare
Opened official page confirms date, venue and an explicit marathon completion option. Seven-hour timed challenge: official page identifies six 4.37-mile / 7 km laps as the marathon option and awards a marathon distance pin. Lap length can change to 3.28 miles following course review. Maintained park footpaths; exact surfacing is not specified. Entry availability is not established by a generic entry button. On-site event only; optional virtual fulfilment is not imported.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.saturnrunning.co.uk/e/running-9-to-5-wales-15972 Location source (opens in a new tab)
Saturday, 3 Apr 2027 · Entries open
Rasus y Bannau Marathon
Brecon town centre · Wales
Surface: Trail
Organised by Run Walk Crawl
- Published distance
- 26.5 miles / 43 km
A marathon route starting in Brecon town centre.
Fixed-distance marathon
Organiser-labelled trail marathon; exact published distance retained. Opened official sources support the date, individual marathon, start locality and published distance. Official linked SiEntries text resolves main-page distance typo (26.5 miles / 65 km): entry page expressly says marathon 26.5 miles / 43 km. Marathon starts Saturday 3 April; Friday start belongs to ultra. Public registration window spans execution date.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Brecon town centre
Opened official sources support the date, individual marathon, start locality and published distance. Official linked SiEntries text resolves main-page distance typo (26.5 miles / 65 km): entry page expressly says marathon 26.5 miles / 43 km. Marathon starts Saturday 3 April; Friday start belongs to ultra. Public registration window spans execution date.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: officially named event town/locality centre. This is not a verified start-line point. Official event-location evidence: https://www.runwalkcrawl.co.uk/rasus-y-bannau-2027 Location source (opens in a new tab)
Sunday, 11 Apr 2027 · Entry status unknown
Bigmoose Ultra Fun Run — Marathon
Coopers Field, Bute Park, Cardiff · Wales
Surface not confirmed
Organised by Bigmoose
- Published distance
- Marathon
A marathon route starting in Coopers Field, Bute Park, Cardiff.
Lapped marathon
Official FAQ says loops starting and finishing in Coopers Field; marathon is an explicit distance choice, not a theoretical timed distance.
Organiser-labelled trail marathon; exact published distance retained. Opened official sources support the date, individual marathon, start locality and published distance. Opened official organiser page via direct public fetch; web renderer initially displayed request verification. Official page supports separate marathon option and loops starting/finishing Coopers Field. No numeric full distance, lap count or surface confirmed. On-site marathon only; virtual option excluded. Fundraising minimum is published but optional monetary fields are not imported.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Coopers Field, Bute Park, Cardiff
Opened official sources support the date, individual marathon, start locality and published distance. Opened official organiser page via direct public fetch; web renderer initially displayed request verification. Official page supports separate marathon option and loops starting/finishing Coopers Field. No numeric full distance, lap count or surface confirmed. On-site marathon only; virtual option excluded. Fundraising minimum is published but optional monetary fields are not imported.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://bigmoosecharity.co/event/bigmoose-ultra-fun-run-2027/ Location source (opens in a new tab)
Sunday, 18 Apr 2027 · Entries open
ABP Newport Marathon
Usk Way / Riverfront area, Newport · Wales
Surface: Road
Organised by Run 4 Wales
- Published distance
- 26.2 miles
An individual marathon from Newport riverfront.
Fixed-distance marathon
Official heading, register page and Run 4 Wales calendar agree 18 April 2027; one stale 2026 paragraph is superseded.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Newport riverfront
Official heading, register page and Run 4 Wales calendar agree 18 April 2027; one stale 2026 paragraph is superseded.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Race area: approximate race area. Official event-to-place evidence identifies Newport riverfront/Usk Way. Named Riverfront theatre feature represents this compact waterfront area only. It is not the exact start outside the nearby University of South Wales, and is not a generic whole-city centre. Separate Newport races retain their own official source and identity. Official event-to-place catalogue evidence is retained separately from the geographic lookup. Location only; no dates, scores, recommendations or entry status reverified. Wikidata structured data, CC0 1.0. Location source (opens in a new tab)
Geographic location source 1 (opens in a new tab)
Saturday, 24 Apr 2027 · Entries open
Endurancelife Pembrokeshire Marathon
Little Haven · Wales
Surface: Trail
Organised by Endurancelife
- Published distance
- 27.3 miles
An individual marathon from Little Haven.
Fixed-distance marathon
Organiser-labelled trail marathon, published at 27.3 miles; coastal trails, grass and beach.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Little Haven
Organiser-labelled trail marathon, published at 27.3 miles; coastal trails, grass and beach. Marathon capacity shows 30/100 with priced registration.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: officially named event town/locality centre. This is not a verified start-line point. Official event-location evidence: https://www.endurancelife.com/pembrokeshire Location source (opens in a new tab)
Saturday, 8 May 2027 · Entry status unknown
Radyr Trail Marathon
Cardiff Harlequins RFC, Whitchurch, Cardiff · Wales
Surface: Trail
Organised by Ridge Runners
- Published distance
- 26.3 miles
A marathon route starting in Cardiff Harlequins RFC, Whitchurch, Cardiff.
Fixed-distance marathon
Organiser-labelled trail marathon; exact published distance retained. Opened official sources support the date, individual marathon, start locality and published distance. Official finish timetable provides 26.3 miles. The Enter link currently points to Brechfa event 4310, so no misleading registration URL is retained.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Cardiff Harlequins RFC, Whitchurch, Cardiff
Opened official sources support the date, individual marathon, start locality and published distance. Official finish timetable provides 26.3 miles. The Enter link currently points to Brechfa event 4310, so no misleading registration URL is retained.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Map location: approximate race area. Approximate event locality: centroid of the organiser-published event postcode. This is not a verified start-line point. Official event-location evidence: https://www.ridgerunners.co.uk/radyr-morganstown-trail-races Location source (opens in a new tab)
Sunday, 9 May 2027 · Entries open
Excalibur Trail Marathon
Coed Moel Famau Car Park, near Tafarn y Gelyn · Wales
Surface: Trail
Organised by Running Head First CIC
- Published distance
- 26.2 miles / 42 km
A trail marathon over the Clwydian Range, starting at Coed Moel Famau.
Fixed-distance marathon
Organiser-labelled trail marathon; exact published distance retained. Opened organiser-linked registration confirms 9 May 2027, a separately available individual marathon ticket and Coed Moel Famau start. Current organiser site still headlines 2026 but linked 2027 edition is explicit. Summer marathon published 26.2 miles / 42 km; retain rounded organiser pair. Winter November event only offers 10K/17K and is not a marathon edition. Canicross start wave is not a second ordinary race.
Approximate race area. Check the organiser’s website for the exact start and race-day directions.
Details & source checks
Start: Coed Moel Famau Car Park, near Tafarn y Gelyn
Opened organiser-linked registration confirms 9 May 2027, a separately available individual marathon ticket and Coed Moel Famau start. Current organiser site still headlines 2026 but linked 2027 edition is explicit. Summer marathon published 26.2 miles / 42 km; retain rounded organiser pair. Winter November event only offers 10K/17K and is not a marathon edition. Canicross start wave is not a second ordinary race.
Sources checked 14 September 2026. Entry availability can change; check with the organiser.
Start: event venue. Current official 2027 instructions explicitly identify start and finish of this distance at Coed Moel Famau Car Park and give grid reference SJ172612. Converted EPSG:27700 to WGS84 with pyproj; original grid has100m resolution, so no exact surveyed start line asserted. NRW separately identifies the same named car park at SJ171610, about224m away. Summit/checkpoint coordinates are not substituted. Location source (opens in a new tab)
Geographic location source 1 (opens in a new tab)
Geographic location source 2 (opens in a new tab)
This is a researched Wales collection, with coverage gaps recorded for review. It does not claim to include every marathon. Distances follow the organiser’s published wording, including approximate trail-marathon distances.
