user: Question: In the 250 series on Clay what were the scores?
Columns: ['Result', 'No.', 'Date', 'Category', 'Tournament', 'Surface', 'Partner', 'Opponents', 'Score']
Types: ['text', 'real', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Runner-up', 1.0, '9 January 2005', '250 series', 'Qatar Open , Qatar', 'Hard', 'Andrei Pavel ( ROM )', 'Albert Costa ( ESP ) Rafael Nadal ( ESP )', '3–6, 6–4, 3–6']
SQL:

assistant: SELECT "Score" FROM "Table" WHERE "Surface" = 'Clay' AND "Category" = '250 series';