<P> Roger Federer won his eighteenth men 's singles Grand Slam title by defeating Rafael Nadal in a five - set final . It was his first major title since 2012 Wimbledon and a rematch of the 2009 Australian Open final , which Nadal won in five sets . Serena Williams overcame her sister Venus in the women 's singles final , surpassing Steffi Graf to become the player with the most major wins in the women 's game in the Open Era . </P>
<P> Roger Federer won his eighteenth men 's singles Grand Slam title by defeating Rafael Nadal in a five - set final . It was his first major title since 2012 Wimbledon and a rematch of the 2009 Australian Open final , which Nadal won in five sets . Serena Williams overcame her sister Venus in the women 's singles final , surpassing Steffi Graf to become the player with the most major wins in the women 's game in the Open Era . </P>
who won the australian women 's open tennis tournament
who won the australian women 's open tennis tournament
Serena Williams
Serena Williams