CREATE TABLE table_53168 ("Year" FLOAT, "Championship" CLOB, "Partner" CLOB, "Opponents" CLOB, "Score" CLOB)

What Championship has Scores of 6 3, 2 6, 3 6, 6 3, 3 6?
SELECT "Championship" FROM table_53168 WHERE "Score" = '6–3, 2–6, 3–6, 6–3, 3–6'
SELECT "Championship" FROM "table_53168" WHERE "Score" = '6–3, 2–6, 3–6, 6–3, 3–6'