Tour History
Since its inception in 1972 the Rotterdam Open has been part of three major tennis circuits: WCT circuit (1972–1977), Grand Prix circuit (1978–1989) and ATP Tour (1990–).
- 1972–1977 : WCT circuit
- 1978–1989 : Grand Prix circuit
- 1990–1999 : ATP World Series
- 2000–2008 : ATP International Series Gold
- 2009–current : ATP World Tour 500
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