2012 Olympic Marathon Course laps, finishing at the start point. It follows the Victoria Embankment towards the City of London where it takes a winding route and continues eastwards to Tower Hill. At this point there is a U-turn and the route heads westwards, again using the Embankment as far as the Palace of Westminster and thence back to The Mall. The last three laps are identical and are exactly 8 miles (12.875 km) each. The first lap, which only incorporates the south-western section of the route, is 2 miles and 385 yards (3.571 km) long. A summary of the course and associated distance
Athletics at the 1908 Summer Olympics – Men's marathon before the Games opened it was realised that the Royal Entrance could not be used as the marathon entrance—it was raised to permit easy descent by the royal party from their carriages, and did not open onto the track—so an alternative entrance was chosen, diagonally opposite the Royal Box. A special path was made from Du Cane Road running due south just east of the Franco British Exhibition ground so that the distance from Windsor to the stadium remained "about 26 miles". The finishing line was left unchanged, but in order that more of the spectators would have a good