Table schema:
CREATE TABLE table_name_42 (date VARCHAR, opponents VARCHAR, outcome VARCHAR, score VARCHAR)

Question: What date has an outcome of runner-up, and a Score of 6–4, 6–2, and a Opponents of gisela dulko flavia pennetta?
SQL: SELECT date FROM table_name_42 WHERE outcome = "runner-up" AND score = "6–4, 6–2" AND opponents = "gisela dulko flavia pennetta"