question: Name the total number of opponent in the final for 6–2, 6–1, 6–3
answer: SELECT COUNT(opponent_in_the_final) FROM table_23235767_4 WHERE score_in_the_final = "6–2, 6–1, 6–3"
context: CREATE TABLE table_23235767_4 (opponent_in_the_final VARCHAR, score_in_the_final VARCHAR)