Derwentwater 10 Calendar When: November 2, 2014 all-day 2014-11-02T00:00:00+00:00 2014-11-03T00:00:00+00:00 A spectacular 10 mile road race run clockwise round Derwentwater. Undulating rather than hilly this course is one of the most scenic road races in the country especially at this time of year when the Autumn colours are at their peak.