Runners in the half marathon will start and finish their race at the Carderock Recreation Area, which lies just off the Clara Barton Parkway near Potomac. From there, the course takes runners out on an out-and-back route that takes them out to the mid-way turnaround point at about the 6.5-mile point of the race; after that, runners then make their way back to the finish line area along the route they’ve just covered.
(MORE: Cloud Snapple Half Marathon event details)