The Prague Half Marathon (known as the Prague Half Marathon for sponsorship reasons) is an annual half marathon road running event which takes place in Spring on the city streets of Prague, Czech Republic, first held in 1999. It is managed by the same organisation that holds the Prague Marathon in May. The race has a loop course, starting and ending in Jan Palach Square near the Rudolfinum, and largely follows the Vltava river. The competition has enjoyed an increasing level of participation, with around 6500 participants in 2009 and almost 8500 runners taking part in the 2010 event.