Arc of Attrition by UTMB Arc 100M
Where the 2027 race is now
- RegistrationOpen when last checked August 14, 2026Check registration
- Race dayFriday, January 22, 2027
- ResultsPosted here as soon as the timer has them
- Race day
- Jan 22, 2027 Friday
- Distance
- Ultra Ultramarathon
- Entry
- Open? As of August 14
- Boston qualifier
- n/a
- Live tracking
- Not yet Shown here race week
- Latest results
- None yet After race day
Quick facts
- Winter 100-mile coastal ultra on Cornwall's South West Coast Path
- Starts at Coverack and finishes toward Perranporth
- Known for wind, mud, darkness, and exposed cliff-top running
- 2027 edition has an officially announced January race date
Course
The 100-mile route starts in Coverack and follows the South West Coast Path toward Perranporth. Expect relentless coastal climbing, cliff-top exposure, mud, darkness, and technical footing.
Race-day weather
January on the Cornish coast can mean wind, rain, cold nights, and saturated trail. Even moderate temperatures can feel harsh when runners are exposed to sea weather for many hours.
About the Arc of Attrition by UTMB Arc 100M
Arc of Attrition by UTMB is a winter trail weekend on Cornwall's South West Coast Path. Arc 100M is the longest race, sending runners point-to-point along exposed coastal terrain.
Past Arc of Attrition by UTMB Arc 100M dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2027 | Friday, January 22, 2027 | Upcoming | — |
Arc of Attrition by UTMB Arc 100M FAQ
When is the Arc of Attrition by UTMB Arc 100M?
The 2027 Arc of Attrition by UTMB Arc 100M is on Friday, January 22, 2027.
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