A taste of Eryri's mythical mountain trails

No Service Requirement

Does not require trail or volunteer work

No qualifier race required

Some ultra experience recommended

Named after Eryri — the ancient Welsh for 'land of the eagles' — the ERYRI 25K is a 25km loop from Llanberis that visits Yr Wyddfa (Snowdon) and explores the scenic mountain trails of Eryri National Park. With 1,400m of elevation gain and a 5.5-hour cutoff, it's a challenging but accessible introduction to the UTS weekend. All finishers earn 1 Running Stone, making them eligible for the UTMB Mont-Blanc ballot.

This event uses open registration - no lottery entry required.

This event does not require a qualifier for entry.

This race does not have a service requirement for entry.

No Service Requirement

Does not require trail or volunteer work

No qualifier race required

Some ultra experience recommended

This event uses open registration - no lottery entry required.

This event does not require a qualifier for entry.

This race does not have a service requirement for entry.

Location	km	Elevation
Start Start	0.0	105 m
Finish Finish	21.7	105 m

Location	km	Elevation
Start Start	0.0	105 m
Finish Finish	21.7	105 m

Ultra-Trail Snowdonia ERYRI 25K

Nearby races

Lakeland 100

Beacons Way Ultra 100 Mile

7 Valleys Ultra

Autumn 100

West Highland Way Race 95 Mile

Thames Path 100

Ultra-Trail Snowdonia ERYRI 25K

What Makes It Great

Difficulty