Skip to content

2027 Great Welsh Marathon

42KCombo
Distances21K
BonusesScenic
Oct 17, 2027 · 1 day🇬🇧 Llanelli, United Kingdom
Visit Website
Key FactsRegistration open
Standouts
---

The Great Welsh Marathon 2027 is a flat, fast, scenic course on the South Wales coast, designed for first marathons and personal bests. The event moves to a brand-new course in Carmarthenshire for 2027, with the exact route confirmed closer to race day.

Why attend here

Run the South Wales coast in October, when the autumn light softens the views over the Loughor Estuary and the Gower Peninsula — a route that feels more like a seaside escape than a race. After the finish, wander Llanelli's Millennium Coastal Park or head into town for a proper Welsh breakfast (laverbread and cockles are the local specialty) before the crowds of summer have fully returned.

Distance from you
From Columbus, US to Llanelli, GB
~7.4h · 5,940 km

Llanelli

combo
typical Oct weather · 2026
14 Fri
30°17°
0.2mm4.2 m/s
15 Sat
25°14°
3.1mm4.9 m/s
Event Details
Elevation

110m

Course

The course runs along the South Wales coast with views over the Loughor Estuary and the Gower Peninsula, on road and surfaced coastal path.