Belgian Open (tennis) However, Sabine Appelmans, Kim Clijsters and Els Callens all won the doubles event. 1987: Knokke 1988-89: Brussels 1992: Waregem 1993: Liège 1999-2001: Antwerp Belgian Open (tennis) The Belgian Open was a WTA Tour tennis event held over three different periods during 1987–2002. The competition took place in July during 1987–1989 and 2002, and in May during 1992–1993 and 1999–2001. During 2000–2001 it was sponsored by Dutch clothing chain Mexx and renamed the "Benelux Open". The competition was played on outdoor clay courts. The tournament was a Tier V event in 1992 and 2001. The tournament was a Tier IV event
US Open (tennis) US$33.6 million, a record US$8.1 million increase from 2012. The champions of the 2013 US Open Series also had the opportunity to add US$2.6 million in bonus prize money, potentially bringing the total 2013 US Open purse to more than US$36 million. In 2014, the prize money was US$38.3 million. In 2015, the prize money was raised to US$42.3 million. Ranking points for the men (ATP) and women (WTA) have varied at the US Open through the years but presently singles players receive the following points: US Open (tennis) The United States Open Tennis Championships is a hard court tennis