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:
| Date | Tournament | Surface | Partnering | Opponents in the final | Score |
| --- | --- | --- | --- | --- | --- |
| September 21, 1998 | Bucharest , Romania | Clay | Gabriel Trifu | George Cosac Dinu Pescariu | 7–6(2), 7–6(4) |
| July 31, 2005 | Kitzbühel , Austria | Clay | Leoš Friedl | Christophe Rochus Olivier Rochus | 6–2, 6–7(5), 6–0 |
| January 15, 2006 | Auckland , New Zealand | Hard | Rogier Wassen | Simon Aspelin Todd Perry | 6–3, 5–7, (10–4) |
| May 7, 2006 | Munich , Germany | Clay | Alexander Waske | Alexander Peya Björn Phau | 6–4, 6–2 |
| July 16, 2006 | Gstaad , Switzerland | Clay | Jiří Novák | Marco Chiudinelli Jean-Claude Scherrer | 6–3, 6–1 |
| April 29, 2007 | Barcelona , Spain | Clay | Alexander Waske | Rafael Nadal Bartolomé Salvá-Vidal | 6–3, 7–6(1) |
Question:
What is Surface, when Opponents In The Final is "Christophe Rochus Olivier Rochus"?
Answer:
Clay