Serena Is Only The Second Woman In History To Hold All Four Slams At The Same Time

One of the major accomplishments of Serena Williams is that she is only the second woman in history to hold four slams simultaneously twice. Serena won the 2003 Australian Open as a follow-up to her three grand slam victories in 2002. She defeated her sister Venus in the final to win the fourth straight Grand Slam. With her victory at the Australian Open, Serena became the sixth woman in the Open Era to complete a career Grand Slam, winning all four Grand Slam events (Australian Open, French Open, Wimbledon, and U.S. Open) thanks to her victory at the Australian Open.

Margaret Court, Billie Jean King, Chris Evert, Martina Navratilova, and Steffi Graf were the first five women to achieve this achievement. Serena joined Maureen Connolly Brinker, Court, Graf, and Navratilova as the sixth woman to capture all Grand Slam singles championships concurrently. Serena did it again in the 2014–15 season. After Rod Laver and Steffi Graf, she became the third player in tennis history to hold all four Grand Slam singles championships at the same time twice.