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 1904 Summer Olympics – Men's marathon research on "purposeful dehydration," even though dehydration is potentially fatal. The marathon ended with the worst ratio of entrants to finishers (14 of 32) and by far the slowest winning time, 3:28:45, almost 30 minutes slower than the second slowest winning time. These were the standing world and Olympic records (in hours) prior to the 1904 Summer Olympics. "(*)" Distance was also 40 kilometres The first to arrive at the finish line was American runner Fred Lorz, who had actually dropped out of the race after nine miles and hitched a ride back to the stadium in a car, waving