Give you a statement and table with its title in Markdown format, please determine whether the statement is supported or refuted by, or is unrelated to the table. It'a binary classification problem, you should choose the answer between supported and refuted. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| outcome | date | surface | opponent in the final | score in the final |
| winner | 11 february 2008 | hard | james blake | 3 - 6 , 6 - 1 , 6 - 4 |
| runner - up | 10 april 2011 | clay | ryan sweeting | 4 - 6 , 6 - 7 (3 - 7) |
| runner - up | 6 november 2011 | hard (i) | roger federer | 1 - 6 , 3 - 6 |
| winner | 7 october 2012 | hard | milos raonic | 7 - 6 (7 - 5) , 3 - 6 , 6 - 0 |
| winner | 24 february 2013 | hard (i) | feliciano lópez | 6 - 2 , 6 - 3 |
Title:
kei nishikori
Statement:
most of kei nishikori 's matches took place on a clay surface
Answer:
refuted