Mariana Díaz Oliva (born 11 March 1976) is a retired tennis player from Argentina. She played professionally from September 1992 until 12 October 2006. Her highest ranks were world No. 42 for singles and No. 93 for doubles, both achieved in 2001. At the 2001 Bol Open, she defeated Kim Clijsters to reach the final, where she lost to Ángeles Montolio. In 2002, she won the Internazionali Femminili di Palermo. In 2003, she also reached the Mexican Open singles final. WTA career finals Singles: 3 (1 title, 2 runner-ups) Doubles: 2 (runner-ups) ITF finals Singles: 27 (16–11) Doubles: 23 (15–8) External links 1976 births Living people Tennis players from Buenos Aires Argentine female tennis players Olympic tennis players of Argentina Tennis players at the 1999 Pan American Games Tennis players at the 2004 Summer Olympics Pan American Games bronze medalists for Argentina Pan American Games medalists in tennis Medalists at the 1999 Pan American Games 20th-century Argentine women 21st-century Argentine women