The tournament in 's-Hertogenbosch is officially called the Ordina Open. It is held at the Autorun in Rosmalen, Holland. The tournament is played on grass, just a week before Wimbledon. Many players use it as a warm up for the Grand Slam.

The Ordina Open first took place in 1990 and the main draw consists of 32 players. The current champion is David Ferrer who defeated Marc Giquel 6-4, 6-2 in the final. Mario Ancic has twice won the title winning it back to back in 2005 and 2006.