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Dalesrunner 40

Semerwater, United Kingdom • 13 Sep 2025

The DalesRunner 40 is a challenging 42km (approximate marathon distance) trail race held in Semerwater and Wensleydale, North Yorkshire. Taking place in September, it is the final and longest event in the DalesRunner series. The course features a mix of hard-packed trails, Roman roads, grassy trods, and some road sections, with over 3,000ft of ascent including a steady climb nearly 12km long.

Runners enjoy scenic views over Buckden Pike, the Dales Way along the River Wharfe, and a detour around Weather Fell before descending to the finish by Semerwater lake. The race offers well-stocked aid stations, mandatory safety kit, and a friendly atmosphere supported by local volunteers. An ultra option extends the distance to about 30 miles. Visit the organization's website for the most recent information.

United Kingdom Yorkshire and The Humber Semerwater

Race information

Website
42 km
3000 m+
42km / 26.2m
Visit the organization's website for the most recent information.
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