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
1973 US Open (tennis) 1973 US Open (tennis) The 1973 US Open was a tennis tournament that took place on the outdoor grass courts at the Forest Hills, Queens in New York, United States. The tournament ran from 27 August until 9 September. It was the 93rd staging of the US Open, and the fourth Grand Slam tennis event of 1973. It was the first year the boy's championship was held. The 1973 US Open was the first Grand Slam offering equal prize money to both men and women. John Newcombe defeated Jan Kodeš, 6–4, 1–6, 4–6, 6–2, 6–3 Margaret Court defeated Evonne Goolagong,