Arc of Attrition by UTMB
Cornwall
Four races over one weekend in January, all point to point along the South West Coast Path, all finishing at Perranporth. Part of the UTMB World Series. The Arc 100M is the one it is known for: Coverack to Perranporth, 173 km with 5,507 m of climb, in the middle of winter, with long stretches of coast between aid stations and a good deal of it run in the dark. The 100K, 50K and 20K take the same coastline in smaller bites on the Saturday and Sunday.
Their races
Pins sit on the start. Open one to see the course.
22
Jan
2027
Arc 100M
Coverack, Cornwall · Arc of Attrition by UTMB
Coverack to Perranporth along the whole arc of the Cornish coast, in January.
EXPERT
Entries open
23
Jan
2027
Arc 100K
Land's End, Cornwall · Arc of Attrition by UTMB
Land's End to Perranporth Airfield on the wildest of the Atlantic coast.
EXPERT
Entries open
24
Jan
2027
Arc 50K
Harlyn Bay, Cornwall · Arc of Attrition by UTMB
Harlyn Bay south to Perranporth, fifty kilometres of coast path.
VERY HARD
Entries open
24
Jan
2027
Arc 20K
Perranporth Airfield, Cornwall · Arc of Attrition by UTMB
Twenty kilometres out of Perranporth Airfield to finish the weekend.
HARD
Entries open