Course
A point-to-point 100 miles from Bamburgh Castle in Northumberland to Edinburgh Castle. The first half is largely coastal trail along the Northumberland shoreline, becoming more urban path on the run into Edinburgh. Nine pit stops at 10, 22, 33, 43, 48, 60, 74, 83 and 93 miles carry water, food, toilets and medical support. A 48-hour window makes it walker-friendly at 2.5mph.
Key dates
- !RegistrationOpen now
- ★Race daySat 3 Jul 2027
About
Have you ever wanted to try and run (or walk!) 100 miles but felt they were too intimidating, too exclusive, or just not made for you? We've built the Rat Race 100 Series to be the most accessible, inclusive and supportive 100 mile ultra in the UK.
Save The 100 Mile Ultramarathon for People Who Don't Do 100 Mile Ultramarathons to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Rasselbock Run - Summer
Laps trails in Sherwood Forest, home of Robin Hood
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Rat Race 100: Bamburgh to Edinburgh
A 100-mile coastal ultra from Bamburgh to Edinburgh
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Birmingham Black Country Half Marathon
Canal towpaths linking Wolverhampton and Birmingham
A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.