The fastest will leave first and the last bunch to go will be leaving at 6:45 am. The course will be closed by 12:45 pm. According to News Provider the Marathon will tour through Embarcadero, Fisherman’s Wharf, and then onto the Golden Gate Bridge which the first runners will reach around 6:00 am. It will proceed to Marin County then turn and re-cross the Golden Gate Bridge.
Source:usposttoday.com