CREATE TABLE table_47928 ("Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent in the final" TEXT, "Score" TEXT)

What day was the score for tournament of alcoba a 6 3, 2 6, 7 5?
SELECT "Date" FROM table_47928 WHERE "Tournament" = 'alcobaça' AND "Score" = '6–3, 2–6, 7–5'
SELECT "Date" FROM "table_47928" WHERE "Score" = '6–3, 2–6, 7–5' AND "Tournament" = 'alcobaça'