Database: wta_1
Question: What is the first name, country code, and birth date of the player with the most winner rank points across all matches?
SQL:
SELECT T1.first_name ,  T1.country_code ,  T1.birth_date FROM players AS T1 JOIN matches AS T2 ON T1.player_id  =  T2.winner_id ORDER BY T2.winner_rank_points DESC LIMIT 1