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Trail Marathons in UK in May 2026
Find trail marathons in UK in May 2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sat 9 May
- £50
Cardiff
Radyr Trail Races: Half Marathon and Marathon | Marathon
- 26.2 miles trail running
- Sat 9 May
- £59
Exmoor, Devon
Endurancelife | Exmoor | Marathon
- 27.4 miles trail running + 6070 ft ascent
- Sun 10 May
- £49-£51
Thirsk, North Yorkshire
Hardmoors 26.2 White Horse Trail Marathon | Marathon
- 29 miles trail running + 3400 ft ascent
- Sat 16 May
- £55-£57
Merthyr Tydfil, Powys
OTT Trail Marathon & 10 Mile Trail Run Brecon Beacons | Marathon
- 26.2 miles trail running
- Sat 16 May
- £79
Cheltenham, Gloucestershire
The Maverick Cotswolds Trail | Marathon
- 43 km trail running
- Sat 16 May
- £40-£50
Rugeley, Staffordshire
Merrell Cannock Chase Challenge | Full Marathon
- 26.2 miles trail running
- Sun 17 May
- £50-£52
Helston, Cornwall
Bownder | Moor - Full Marathon
- 26.2 miles multi terrain running