Runners follow an out-and-back course for the Boulder Backroads Half Marathon that unfolds along a gradual uphill ascent over the first half of the race and an equally gradual downhill descent in the second half. The starting and finish line lies at the Boulder Reservoir, just off North 51st Street – the same as the race location used in the annual Boulder Spring Half Marathon – and runners follow a figure-eight-shaped route out toward the half-way turnaround point on North 41st Street.
Note: The course map above provides the approximate route for the race. Though every effort has been made to ensure its accuracy, changes are sometimes made to race routes due to weather conditions, road closures or other circumstances that can require a course to be changed. If you see an error above, email us here.