The
Australian Open is a tennis tournament held annually at Melbourne Park in Melbourne, Victoria, Australia. The tournament is the first of the four Grand Slam tennis events held each year, preceding the French Open, Wimbledon and the US Open. The Australian Open starts in the middle of January and continues for two weeks coinciding with the Australia Day holiday. It features men's and women's singles; men's, women's and mixed doubles; junior's championships; and wheelchair, legends and exhibition events. Until 1987, it was played on grass courts, but since then three types of hardcourt surfaces have been used: green-coloured Rebound Ace up to 2007 and blue Plexicushion from 2008 to 2019. Since 2020, it has been played on blue GreenSet.