Expected January 2028
Distance
Climb
Start Time
Cutoff
Terrain
The Arc 50K follows the South West Coast Path from Harlyn Bay to Perranporth Airfield across 49.4 km of Cornwall's Atlantic coastline, climbing 1,458 m along the way. Runners round the Trevose headland and head south through coves, sand dunes and exposed clifftops, with the terrain at times difficult, steep and arduous. The race starts at 09:00 and a maximum of nine hours is allowed, so depending on pace the later sections are run in the dark. Three aid stations at regular intervals offer basic food and drink, warm shelter and toilet facilities, and no personal support crew is permitted at any point on the route. Runners are expected to be self-sufficient in potentially challenging winter weather, and previous trail running and night running experience is recommended.
Point-to-point along Cornwall's rugged Atlantic coastline
South West Coast Path National Trail
Exposed clifftops and breathtaking ocean views
Finish at Perranporth Airfield
Coves, sand dunes and rolling coastal trails
Start / Finish
Harlyn Bay, Cornwall
Perranporth Airfield, Cornwall
Terrain
Route
Race Day
What you get
Medical cover at strategic locations on the course
Two Running Stones for UTMB World Series Finals access
On the day
Toilets
Merchandise
Marshals on course
First aid on course
Before you enter
Other questions
No. The Arc 50K is a semi-autonomous event with no personal assistance allowed at any point along the route. Only participants may access the aid stations. However, organisers strongly advise arranging for someone to meet you at the finish who can drive you home afterwards.
Yes, previous trail running experience is strongly recommended, and depending on your pace the later part of the race will be run in darkness, so some experience of night time running is advised before entering.
The race follows the existing waymarked South West Coast Path National Trail and there will be some additional course waymarking. Take particular care to stay on the official coast path at Porthcothan Bay, Mawgan Porth, Porth, Newquay, Polly Joke, Holywell Bay and Perranporth.
Yes. Finishing the Arc 50K earns two Running Stones, which count towards UTMB World Series Finals access.
The full race regulations are published on the Arc of Attrition website at https://arcofattrition.utmb.world/regulations.
Entry fee
Registration isn't open yet. We'll show pricing when the organiser confirms.Padstow, United Kingdom
Expected January 2028
Provisional date, around Jan 23More races like this one
Not open yet
