CREATE TABLE table_name_76 (date NUMBER, score VARCHAR2)

On what Date was the Score of 3 6, 6 4, 3 6, 6 1, 6 2
SELECT SUM(date) FROM table_name_76 WHERE score = "3–6, 6–4, 3–6, 6–1, 6–2"
SELECT SUM("date") FROM "table_name_76" WHERE "3–6, 6–4, 3–6, 6–1, 6–2" = "score"