The squash players Nicol David (Malaysia) and Natalie Grinham (Netherlands) have a long rivalry. They have met 32 times during their careers, with David leading their overall head-to-head series 25–7. Natalie is David's most frequent opponent on tour. 16 of their matches have been in tournament finals, including two in the World Open tournament. The World Open 2006 final between David and Natalie is dubbed to be one of the greatest in the Women's World Open history.