Join Team brainstrust’s mission to help those with a brain tumour at the brainstrust Bass Belle 10 miler.  Back for a 12th time!  Flat and fast, the brainstrust Bass Belle 10 Miler is ideal for those chasing a PB. The route takes you around the picturesque local villages of South Cambridgeshire, consisting of 8.5 miles on road and 1.5 miles off road, offering plenty of great views along the way. With only 450 places, the brainstrust Bass Belle is an intimate race meaning runners can get off the start line quickly, and straight into their pacing without feeling bunched up by crowds. Another great plus for those after a PB!