Open Dimitrov defeated Jérémy Chardy to reach the second round but then he lost in five sets to Nicolás Almagro. Dimitrov competed in the SAP Open but lost in the first round to Kevin Anderson, despite winning the first set easily, lost the next two in tie-breaks. At the BNP Paribas Open Dimitrov defeated Ivan Dodig in the first round, but lost to David Ferrer in the second round. Dimitrov's next tournament was the Sony Ericsson Open, where he reached the fourth round after defeating Mikhail Kukushkin, Juan Ignacio Chela, and upsetting world No. 7, Tomáš Berdych, his first win over a top-ten player, before losing to Janko Tipsarević. Dimitrov entered the challenger event Strabag Prague Open as the fifth seeded player. In the first round he defeated Jan Hájek and then lost to Aljaž Bedene in the second. At the French Open, Dimitrov was a set and a break up against 17th seed Gasquet before suffering an injury, he went on to lose the set, momentum and eventually match. Dimitrov's next tournament was the Aegon Championships. He beat Bobby Reynolds, Gilles Müller and Nicolas Mahut and then reached his first ATP semifinal by beating the No. 9 seed, Kevin Anderson by coming back from a set down. Dimitrov became the first ever Bulgarian male tennis player to reach an ATP semifinal. In his first ATP semifinal Dimitrov lost to tenth seeded David Nalbandian in straight sets. This tournament helped him become No. 65 in the rankings. At the 2012 Wimbledon Championships, Dimitrov faced the No. 32 seed, Kevin Anderson in the first round. Dimitrov won in a very close four sets. In the second round, he faced the Cypriot Marcos Baghdatis, where Dimitrov retired due to an injury. His next tournament was Swedish Open. Seeded sixth, he eliminated Rogério Dutra da Silva, Frederico Gil, and third seed Albert Ramos all in straight sets to reach a second ATP semifinal in his career. In the semifinal, he lost to the top seed and eventual champion David Ferrer in straight sets. Dimitrov then competed in the Crédit Agricole Suisse Open Gstaad. He defeated sixth seed Julien Benneteau, Dustin Brown, and Łukasz Kubot. In his third career semifinal, he lost again – this time to Thomaz Bellucci in two tough tiebreaks. On the grass of Wimbledon, Dimitrov represented his country for the first time in the Olympics. In the first round, he