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Arc of Attrition Arc 50K

Draft Listing
  1. UTMB
  2. 2027 Edition
UTMB World Series2 Stones

A new 50 km point-to-point along Cornwall's Atlantic coast

Explore the Course
Interactive map with aid stations, elevation & weather
DirectionsExplore
Registration OpensJuly 13, 2026
Calculate UTMB Lottery Odds2 Running Stones
Register
All trail races in United Kingdom→
January 24, 2027
Sunday 9:00am GMT start
Porthtowan, England
United Kingdom
49.4 km
Point to Point Course
1,458 m
Elevation Gain
Open Registration
No lottery
No Service Requirement
Does not require trail or volunteer work
No Qualifier
No qualifier race required
Challenging
Some ultra experience recommended
Links
WebsiteInstagramFacebook
2015
Established
608
Field Size
96%
Finish Rate

What Makes It Great

The Arc 50K is a point-to-point trail race on the South West Coast Path from Harlyn Bay, round the Trevose headland and south along Cornwall's Atlantic coast to the finish at Perranporth Airfield. The new 49.4 km course passes Porthcothan Bay, Mawgan Porth, Newquay, Polly Joke and Holywell Bay, with 1,458 metres of climbing and a 9-hour time limit. There are three aid stations, no support crew is allowed and mandatory kit is required. Depending on pace, the later part of the race is run in the dark, making it a stepping stone into ultra-distance trail running.

Difficulty

Intermediate
4/10

Some ultra experience recommended

Technical Terrain
Variable Weather
Night Running
Exposed Ridgeline

Arc of Attrition Arc 50K

Porthtowan, England, United KingdomJanuary 24, 2027

January 24, 2027

Arc of Attrition Arc 50K is a point-to-point trail race in Porthtowan, England, United Kingdom, held on January 24, 2027. The course covers 49.4 km, climbs 1,458 m, and has a 9h cutoff.

Course map for Arc of Attrition Arc 50K
DistDistance49.4 km
GainElevation Gain1,458 m
LimitCutoff9 h
Variable WeatherNight RunningExposed Ridgeline

Entry Timeline

Registration OpensJuly 13, 2026
Race DayJanuary 24, 2027

Lottery

This event uses open registration - no lottery entry required.

Qualifier

This event does not require a qualifier for entry.

Service Requirement

This race does not have a service requirement for entry.
49.4 km
Distance
Point to Point
Route
9h
Cutoff Time
34 m
Average Elevation
1,458 m
Total Ascent
1,366 m
Total Descent
101 m
High Point
2 m
Low Point
Explore Course
Course map for Arc of Attrition Arc 50K
Launch Course Explorer

Aid Stations & Cutoffs

LocationkmElevationCutoff
Harlyn
Start
0.07 m—
AS10 Mawga
Aid Station
17.65 m—
AS11 Newqu
Aid Station
27.44 m—
AS12 Holyw
Aid Station
37.06 m—
Finish
Finish
49.0101 m
9h6:00 PM

Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.

Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.

No on-site camping available

No camping at the event venue. From 2027 the event is based at Perranporth Airfield (Higher Trevellas St, Trevellas, St Agnes TR5 0XS), and overnight stays, including sleeping in vehicles or tents, are not permitted in the event car park. Book a local campsite, B&B or hostel early; Nirvana is the official travel and accommodation partner.

Crew Access Points

Pacer Rules

No Pacers Allowed

Crew Rules

No Crew Allowed

Gear Rules

Trekking poles allowed

Required Gear

No required gear specified

Recommended Gear

No recommended gear specified

Race reports from other Arc of Attrition events

Arc of Attrition 2025 ResultsArc of Attrition Arc 100M
By Electric Cable Car • 2025
Tales from the Arc of AttritionArc of Attrition Arc 100M
By Camino Ultra • 2025
CLC Striders at UTMB Arc of Attrition 2025Arc of Attrition Arc 100M
By CLC Striders • 2025

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Register•January 24, 2027