London, Ramadan 5, 1435, Jul 2, 2014, SPA -- Andy Murray's reign as British Wimbledon champion ended on Wednesday as the third seed came out flat and paid the price in a 6-1, 7-6 (7-4), 6-2 quarter-final loss to Grigor Dimitrov. The Bulgarian 11th seed schooled his friend in two hours to leave Murray without a title in the year since he became the first British man to win a Wimbledon singles title for 77 years, dpa reported. Murray admitted he was off the boil and vowed to work harder over the next month to lift his level. Dimitrov heads to a semi-final with 9-0 grass record in 2014. Top seed Novak Djokovic survived a swoon in the second and third sets before rallying past Croatian Marin Cilic 6-1, 3-6, 6-7 (4-7), 6-2, 6-2. The Serb inflicted a tenth straight defeat in their series on Cilic, whose big game produced only 10 aces. Djokovic will next play Dimitrov, against whom he has won three of four meetings. --SPA 00:02 LOCAL TIME 21:02 GMT www.spa.gov.sa/w