[5] When she lost in Denmark Open quarterfinal mixed doubles against Simon Archer and Joanne Goode from England, She immediately retired from the sport due to broken bones in her foot.

[6][7] Thomsen competed in badminton at the 1992 Summer Olympics in women's doubles with Lisbet Stuer-Lauridsen.

In the second round, the eventual silver medalist, Guan Weizhen and Nong Qunhua of China, beat them 15-3, 15-12.

She also competed in badminton at the 1996 Summer Olympics in women's doubles with Lisbet Stuer-Lauridsen.

Thomsen is married to her number 1 mixed doubles partner, the hall of famer Thomas Lund himself who works as the Secretary General of BWF.