Course
Five races based in Eryri (Snowdonia) National Park, from a 22 km course with 1,100 m of climb up to a 163 km, 9,200 m mountain ultra. The routes run on technical mountain trails across the rugged uplands of north Wales.
Key dates
- !RegistrationOpen now
- ★Race dayFri 14 May 2027
About
Ultra-Trail Snowdonia by UTMB is a UTMB World Series race based in Llanberis, with distances from 25K up to 100 miles through Eryri (Snowdonia) National Park. Courses climb into the mountains around Yr Wyddfa (Snowdon), Wales's highest peak.
Save Eryri by UTMB to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Off The Tarmac Trail Marathon & 10 Mile
Trail marathon into the Brecon Beacons foothills
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The Compton Marathon & 16 Mile Challenge
Loops crisscrossing the ancient Ridgeway, Berkshire Downs
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Race for Life Swansea
Beside Swansea's National Waterfront Museum
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Barry Island 10K
Sun, sea and sand at the seaside resort of Barry Island
A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.