Serena Jameka Williams (born September 26, 1981)〔 is an American professional tennis player who is ranked No. 1 in women's singles tennis. The Women's Tennis Association (WTA) has ranked her world No. 1 in singles on six separate occasions. She became the world No. 1 for the first time on July 8, 2002, and achieved this ranking for the sixth time on February 18, 2013. She is the reigning champion of the Australian Open, French Open, Wimbledon and Olympic women's singles and doubles. Williams is regarded by some commentators, sports writers, and current and former players as the greatest female tennis player of all time.
Williams holds the most major singles, doubles, and mixed doubles titles combined amongst active players, male or female. Her record of 36 major titles puts her fifth on the all-time list and second in the open era with: 21 in singles, 13 in women's doubles, and two in mixed doubles. She is the most recent player, male or female, to have held all four major singles titles simultaneously (2002–03 and 2014–15), the fifth woman ever to do so and only the third player, male or female, to achieve this record twice after Rod Laver and Steffi Graf. She is also the most recent player, together with her sister Venus Williams, to have held all four Grand Slam women's doubles titles simultaneously (2009–10).
Her total of 21 Grand Slam singles titles is third on the all-time list behind Margaret Court (24) and Steffi Graf (22), and second in the Open Era, behind only Graf.〔 She is the only tennis player – female or male – to have won singles titles at least six times in three of the four Grand Slam tournaments. She is also the only tennis player to have won 10 Grand Slam singles titles in two separate decades. She has won an all-time record 12 Grand Slam singles titles on hardcourt. Williams holds the Open Era record for most titles at the Australian Open (6) and shares the record for most titles at the US Open with Chris Evert (6).
She has won 13 Grand Slam doubles titles with her sister Venus Williams and the pair are unbeaten in Grand Slam tournament finals. Williams is also a five-time winner of the WTA Tour Championships. The arrival of the Williams sisters has been credited with launching a new era of power tennis in the women's game. Williams has won four Olympic gold medals, one in women's singles and three in women's doubles, an all-time record shared with her sister Venus Williams.
Serena Jameka Williams was born in Saginaw, Michigan, to Richard Williams and Oracene Price, and is the youngest of Price's five daughters: half-sisters Yetunde, Lyndrea and Isha Price, and full sister Venus.〔 When the children were young, the family moved to Compton, California, where Williams started playing tennis at the age of three.〔(【引用サイトリンク】title=About Serena – Serena Williams )〕 Her father home-schooled Serena and her sister Venus.〔(【引用サイトリンク】Successful & Famous People that were Homeschooled )〕 While he and subsequently her mother, Oracene, have been the official coaches, other mentors who helped her learn the game included the Richard Williams in Compton who would go on to found The Venus and Serena Williams Tennis/Tutorial Academy.
Williams's family moved from Compton to West Palm Beach, Florida,〔 when she was nine so that she could attend the tennis academy of Rick Macci, who would provide additional coaching. Macci spotted the exceptional talents of the sisters. He did not always agree with Williams's father, but respected that "he treated his daughters like kids, allowed them to be little girls". Richard stopped sending his daughters to national junior tennis tournaments when Williams was 10, since he wanted them to take it slow and focus on school work. Another factor was racial, as he had heard white parents talk about the Williams sisters in a derogatory manner during tournaments. At that time, Williams had a 46–3 record on the United States Tennis Association junior tour and was ranked No. 1 among under-10 players in Florida.〔Edmonson, 2005, ''Venus and Serena Williams'', pp. 46–47.〕 In 1995, when Williams was in the ninth grade, her father pulled his daughters out of Macci's academy and, from then on, took over all coaching at their home. When asked in 2000 whether having followed the normal path of playing regularly on the junior circuit would have been beneficial, Williams responded: "Everyone does different things. I think for Venus and I, we just attempted a different road, and it worked for us."〔
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