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Trail Half marathons in South Wales in December 2025

Find trail half marathons in South Wales in December 2025 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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  • Sat 13 Dec
Neath, West Glamorgan, UK

Celtic Trail Races | Half Marathon

  • 13 miles trail running + 2200 ft ascent

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