The World Cup tickets were offered in several sales phases. During the first sales period from 29 October 2009 to 31 August 2010, only so-called city series tickets were offered. Each city series includes tickets for all games of that particular host city. The prices ranged from €30 to €415. In the second sales period from 17 February to 31 August 2010, so-called 20Eleven tickets were sold to groups of at least 11 people, offered at a 20 percent discount and directed primarily at schools and clubs. Single tickets for all matches were first sold starting 15 September 2010. The prices of individual tickets range from €10 to €200. On 18 March 2011, 100 days before the opening game, the last sales phase started, with all remaining tickets being sold in the order in which orders are received.