CREATE TABLE table_name_51 (surface VARCHAR2, score VARCHAR2)

On what surface was the game played that had a score of 4 6, 6 4, [8 10]?
SELECT surface FROM table_name_51 WHERE score = "4–6, 6–4, [8–10]"
SELECT "surface" FROM "table_name_51" WHERE "4–6, 6–4, [8–10]" = "score"