The 20th edition for Spartathlon, one of the most grueling footrace in the world, ended Saturday in the city of Sparta, in the southern part of Greece. A total of 203 runners from all over the world gathered Friday morning just below the historical temple of Acropolis in capital Athens, the hosting city of the 2004 Olympics, to retrace the route of the legendary messenger Pheidippides, who 2.500 years ago ran a distance of 246 km (from Athens to Sparta)m seeking help when the Athenians were defending their land from a Persian attack.