Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Which surfaces have the final score of 6–1, 6–7 (2–7) , 7–6 (7–5) , 7–6 (10–8)?

### Inputs:
table_name: table, columns: ['Outcome', 'Year', 'Championship', 'Surface', 'Opponent in the final', 'Score in the final']

### Response:
SELECT Surface FROM table WHERE Score in the final = 6–1, 6–7 (2–7) , 7–6 (7–5) , 7–6 (10–8)