Serena Williams completed a second “Serena Slam” by winning the 2014 U.S. Open and the 2015 Australian Open, French Open and Wimbledon. She came close to winning the actual Grand Slam in 2015, but she lost to Roberta Vinci in the semi-finals of the U.S. Open… The only women ever to win the official Grand Slam of all four singles tournaments in one year are Margaret Court (in 1970) and Steffi Graf (in 1988). Maureen Connolly also won the four major tournaments in 1953, in the so-called “pre-Open” era, when Wimbledon was joined by the Australian Championships, the French Championships and the U.S. Championships… Serena Williams’ win in 2015 made her the oldest woman ever to win singles at Wimbledon, at 33 years and 289 days. The next year she won again, at age 34 years and 295 days.