From https://www.atlantatrackclub.org website:
The best way to see Atlanta is on foot. Whether you are running or walking the marathon, half marathon or 5K distance, you’ll run by Atlanta’s most iconic sites. With a new name and a new course for the marathon and half marathon in 2019, the Publix Atlanta Marathon, Half Marathon & 5K will show participants from near and far why Atlanta is truly one of the country’s great running destinations.
Atlanta Track Club events are held rain or shine.