query: surface_played_on sydney international
supports: Plexicushion is an acrylic-based hardcourt tennis surface and one of the surface types used on the professional Association of Tennis Professionals and Women's Tennis Association tours. It is manufactured and sold by sports surfaces division of California Products Corporation, a company based in Andover, Massachusetts. A hardcourt (or hard court) is a surface or floor on which a sport is played, most usually in reference to tennis courts. They are typically made of rigid materials such as asphalt or concrete, and covered with acrylic material to seal the surface and mark the playing lines, while providing some cushioning. Historically, hardwood surfaces were also in use in indoor settings, similar to an indoor basketball court, but these are now rare. The Australian Open is a major tennis tournament held annually over the last fortnight of January in Melbourne, Australia. First held in 1905, the tournament is chronologically the first of the four Grand Slam tennis events of the year  the other three being the French Open, Wimbledon and the US Open. It features men's and women's singles; men's, women's and mixed doubles and junior's championships; as well as wheelchair, legends and exhibition events. Prior to 1988 the tournament had been played on grass. Since 1988 two types of hardcourt surfaces have been used at Melbourne Park  green Rebound Ace to 2007 and blue Plexicushion from 2008. The Sydney International ( formerly known as the Championship of New South Wales and New South Wales Open , with various title sponsors ) , sponsored as the Apia International Sydney as of 2012 , is a professional tennis tournament in Sydney , New South Wales , Australia . The tournament is played annually at the Sydney Olympic Park Tennis Centre in Homebush . It is one of the oldest tennis tournaments in the world , dating to 1885 . The tournament is currently noted as an ATP 250 point event on the men 's tour and a WTA Premier event on the women 's tour . The tournament is held annually in January immediately prior to the Australian Open as a lead up tournament as part of the Australian Open Series . Rebound Ace is a cushioned tennis hardcourt composed of polyurethane rubber, fiberglass, and other materials on top of an asphalt or reinforced concrete base. It is manufactured by California Products Corporation's Sports Surfaces division.
candidates: grass hardcourt
answer: hardcourt