Cardiff Half Marathon
Distance
Half Marathon
Date
October 04, 2026
Location
Cardiff, United Kingdom
Website
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Wales' largest half marathon with up to 27,500 runners on a flat, fast course past Cardiff Castle and the Principality Stadium.
Course Type
Loop
Elevation Gain
30m
Typical Weather
Autumn, 10-14°C (50-57°F), mild Welsh weather
What Makes This Race Special
- Wales' largest half marathon
- 27,500 runners
- Cardiff Castle
- Principality Stadium
- Flat fast course