The Annual Suntrust National Marathon will cause some traffic glitches in the District on Saturday.
Streets will begin closing at 6:45 a.m. as runners line up at RFK Stadium. Once they set off, the race course snakes through six of the District's eight wards along its 26-mile route.
Cars can be parked along streets closed for the race but cannot be moved once the marathon has started -- to prevent accidents between drivers and runners.
Signs have been posted along the streets that are affected.
Meanwhile, Metrorail will open at 5 ahead of the race, and some bus routes will be altered to accomodate runners.
More details are available on Metro's website.