Course
Ten marathons on ten consecutive days, each one a lap of the Windermere Marathon course. Start and finish are at Brathay Hall, Ambleside, on the shore of Windermere, which doubles as the event base. The road circuit takes in the Devil's Elbow climb at mile 7, Newby Bridge at mile 13 and Rayrigg Road at mile 21.
Key dates
- ✓RegistrationClosed
- ✓Entries closedMon 31 Aug 2026
- ★Race dayFri 14 May 2027
About
The Brathay 10in10 challenges runners to conquer the stunning Windermere Marathon course in the heart of the United Kingdom's picturesque Lake District. Over the course of 10 days, participants will complete 10 laps of this scenic route, testing their endurance and dedication in a truly unique running event.
Save Brathay 10in10 to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
-
Spire Ultra
33-mile mixed-terrain ultra above Chesterfield
-
Kendal to Preston Ultra
Fifty miles point to point from the Lake District to the Fylde coast
-
White Peak Marathon Festival
Off road marathon, half and 10k through Peak District National Park
-
Roadford Lake Trail Races
Lakeside loops around Roadford Lake, Devon
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.
