The Dutch Open Tennis Amersfoort as it is formally known takes place in mid to late July. Matches are played on clay courts. There are 32 players in the main draw with many young Dutch players being given wild cards into the first round.

The Dutch Open Tennis Amersfoort first took place in 1957. There have been a number of different winners over the past few years. The current champion is Steve Darcis who was ranked 297th in the rankings and had to qualify for the tournament.