Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Outcome | Date | Tournament | Surface | Partner | Opponents | Score |
| --- | --- | --- | --- | --- | --- | --- |
| Runner-up | 14 July 2008 | Croatia Open Umag , Umag, Croatia | Clay | Carlos Berlocq | Michal Mertiňák Petr Pála | 6–2, 3–6, [5–10] |
| Runner-up | 27 February 2010 | Abierto Mexicano Telcel , Acapulco, Mexico | Clay | Potito Starace | Łukasz Kubot Oliver Marach | 0–6, 0–6 |
| Winner | 30 July 2011 | ATP Studena Croatia Open , Umag, Croatia | Clay | Simone Bolelli | Marin Čilić Lovro Zovko | 6–3, 5–7, [10–7] |
| Runner-up | 14 April 2012 | Grand Prix Hassan II , Casablanca, Morocco | Clay | Daniele Bracciali | Dustin Brown Paul Hanley | 5–7, 3–6 |
| Winner | 24 February 2013 | Copa Claro , Buenos Aires, Argentina | Clay | Simone Bolelli | Nicholas Monroe Simon Stadler | 6–3, 6–2 |
| Runner-up | 2 March 2013 | Abierto Mexicano Telcel , Acapulco, Mexico | Clay | Simone Bolelli | Łukasz Kubot David Marrero | 5–7, 2–6 |
| Runner-up | 6 October 2013 | China Open , Beijing, China | Hard | Andreas Seppi | Max Mirnyi Horia Tecău | 4-6, 2-6 |
Question:
Name the surface when the partner is carlos berlocq
Answer:
Clay