We take a look at a selection of Opta facts relating to the Australian Open women's singles, ahead of the 2016 tournament at Melbourne Park.
- Reigning champion Serena Williams has won six of the last 13 Australian Opens, but last defended the title in 2010.
- Williams is the only player to have won more than two grand slam women's singles titles since 2010 - triumphing 10 times in that period.
- The world number one has won four of the last five slams, losing only in the most recent US Open semi-finals versus Roberta Vinci.
- Williams won five of the 11 tournaments she played last year - a 45.4 per cent success rate.
- Martina Hingis is the youngest winner of the Australian Open women's singles, having triumphed at the age of 16 years and three months in 1997. The oldest winner, Thelma Long, was 35 years and eight months old when she prevailed in 1954.
- Last year, 11 seeds were eliminated during the first round, the highest tally in the tournament in the Open Era.
- The last 10 runners-up in Grand Slams have been 10 different players: Vinci, Muguruza, Safarova, Sharapova, Wozniacki, Bouchard, Halep, Cibulkova, Azarenka, Lisicki.
- Maria Sharapova has reached the final in four of her last eight Australian Opens but won the title only once, in 2008.
- Simona Halep won 41 games on hard courts in 2015 (losing 11), more than any other player.