Beenhakker surprised as a seventeen-year-old junior in 1995 by becoming women's singles Dutch National champion.

A few months after her first championship with seniors in 1995, she was also crowned as European Junior Champion, becoming the first ever Dutch to win the girls' singles title.

Beenhakker played badminton for BC Smashing (Wijchen) in the Dutch premier league.

She stopped playing international tournaments in April 2006, after a badminton career lasting for 19 years.

The Arnhem player started badminton when she was ten years old, after having been interested in playing tennis before.