Black River Run 10 miles

Black River Run 10 miles

This page covers the Black River Run 10 miles in 2026. It is the same lap the hundred-mile runners do ten times, run once, which makes it the shortest way to see the whole course. The surface changes between fitness trails, prepared paths, gravel road, cycle path and just under a kilometre of very technical trail over bare rock. The organisers’ course description puts the total height difference at about 100 metres a lap, and calls the terrain around Västerås flat.

The lap has three clear parts. First five kilometres of narrow trails with stones and roots, where you need to keep an eye on the markings. Then, after the checkpoint with water and sports drink at 5.9 km and a road crossing, a long, easy-running stretch downstream along the Svartån river, past allotment gardens, a birch avenue and the passage under the E18 at Vallbybron. Finally the course turns north along the river and saves its hills for last, with a steep climb of about 30 metres up under the E18 bridge.

A 16-kilometre lap suits anyone who wants a proper trail run and a bit more, and the organisers’ 30-hour limit means nobody has to hurry. With Livebib the runner shares a link to their own broadcast, and whoever has the link sees in a browser, with no account and no app, where on the course the runner is and a finish estimate that updates during the race. If the signal drops, the position is carried forward along the course and marked as estimated.