Multiple choice general knowledge sports Serena became the World Number 1 for the first time in July 2002 March 2000 November 1999 April 2001 Reveal answer Fill a bubble to check yourself A Correct answer Explanation Serena Williams first became World No.1 on July 8, 2002, after winning her first Grand Slam title at the 2002 French Open. She was the sixth woman to hold the top ranking in WTA history.