Rafael Nadal continued his dominance on clay with a 6-2, 6-1 win over 19-year-old GREEK Stefanos Tsitsipas to win his 11th Barcelona Open title. April 29, 2018, at 11:58 a.m.. April 29, 2018, at 11:58 a.m.. More. U.S. News & World Report. Nadal Wins 11th Barcelona Title, Unbeaten in 46 Sets on Clay.