Athens's spring half marathon, and the biggest race day in the city after the Authentic: 21.1 km through the historic centre on closed streets. From the Tomb of the Unknown Soldier on Syntagma it passes the marble Panathenaic Stadium, climbs Vasilissis Sofias to Ampelokipi, runs out along Patission and comes back down Panepistimiou to the finish in front of Parliament. Athens is not flat, and the leaders call it a tough course; the record is 1:04:44.