Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_29026564_10 (score VARCHAR, surface VARCHAR, category VARCHAR)

### Question ###
In the 250 series on clay what were the scores?

### Accurate SQL ###

SELECT score FROM table_29026564_10 WHERE surface = "Clay" AND category = "250 series"