From picturesque villages and secluded coves, to rugged and unforgiving terrain, the dramatic South West Coast Path has it all!
The Arc 100, Arc 50, Arc 25 and Arc 12 are point-to-point challenging coastal races along the stunning and dramatic South West Coast Path - the UK's longest National Trail.
Held from 22 to 25 January 2026, the Arc of Attrition by UTMB will see competitors tackling some of Cornwall's finest coastal trails in tough and unpredictable winter conditions.
Born in 2015, the Arc of Attrition has grown from a single 100 mile foot race with 50 competitors to be recognised as one of the UK's largest and most in-demand trail events offering multiple race distances. Will you be joining us for the 11th edition in 2026?
Discover the races
Registrations open
Race Category
Running Stones
4
Distance
162 KM
Elevation Gain
4900 M+
Registrations open
Race Category
Running Stones
3
Distance
81 KM
Elevation Gain
2500 M+
Registrations open
Race Category
Running Stones
2
Distance
40 KM
Elevation Gain
1000 M+
Registrations open
Race Category
Running Stones
1
Distance
20 KM
Elevation Gain
500 M+
Create a 'My UTMB' account to access detailed statistics about your past races, consult your UTMB Index, compare your performance against fellow trail runners, check your amount of Running Stones, view your upcoming UTMB World Series Events, and much more.
