Which has a Score of 6–1, 3–0 ret.?
CREATE TABLE table_name_45 (surface VARCHAR, score VARCHAR)
SELECT surface FROM table_name_45 WHERE score = "6–1, 3–0 ret."
### Context: CREATE TABLE table_name_45 (surface VARCHAR, score VARCHAR) ### Question: Which has a Score of 6–1, 3–0 ret.? ### Answer: SELECT surface FROM table_name_45 WHERE score = "6–1, 3–0 ret."