tell me the number of matches played on clay.
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col : outcome | no. | date | tournament | surface | opponent | score row 1 : runner-up | 1. | 1 august 2011 | são paulo, brazil | clay | maria fernanda alves | 6–4, 5–7, 3–6 row 2 : winner | 1. | 24 october 2011 | goiânia, brazil | clay | bárbara luz | 6–2, 6–0 row 3 : winner | 2. | 2 april 2012 | ribeirão preto, brazil | hard | natasha fourouclas | 6–0, 6–1 row 4 : winner | 3. | 25 march 2013 | ribeirão preto, brazil | clay | andrea benítez | 7–6(7–2), 6–2 row 5 : winner | 4. | 15 april 2013 | antalya 15, turkey | hard | tereza martincová | 6–4, 6–3 row 6 : runner-up | 2. | 20 may 2013 | caserta, italy | clay | renata voráčová | 4–6, 1–6 row 7 : runner-up | 3. | 17 june 2013 | lenzerheide, switzerland | clay | laura siegemund | 2–6, 3–6
tell me the number of matches played on clay.
Outcome No. Date Tournament Surface Opponent Score
Runner-up 1. 1 August 2011 São Paulo, Brazil Clay Maria Fernanda Alves 6–4, 5–7, 3–6
Winner 1. 24 October 2011 Goiânia, Brazil Clay Bárbara Luz 6–2, 6–0
Winner 2. 2 April 2012 Ribeirão Preto, Brazil Hard Natasha Fourouclas 6–0, 6–1
Winner 3. 25 March 2013 Ribeirão Preto, Brazil Clay Andrea Benítez 7–6(7–2), 6–2
Winner 4. 15 April 2013 Antalya 15, Turkey Hard Tereza Martincová 6–4, 6–3
Runner-up 2. 20 May 2013 Caserta, Italy Clay Renata Voráčová 4–6, 1–6
Runner-up 3. 17 June 2013 Lenzerheide, Switzerland Clay Laura Siegemund 2–6, 3–6
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