SELECT date FROM table_name_42 WHERE outcome = "runner-up" AND score = "6–4, 6–2" AND opponents = "gisela dulko flavia pennetta"
Tanggal berapa hasil runner-up, dan skor 6-4, 6-2, dan lawan Gisela Dulko Flavia Pennetta?
CREATE TABLE table_name_42 (date VARCHAR, opponents VARCHAR, outcome VARCHAR, score VARCHAR)