Career
She competed at the 1952 Summer Olympics in the 100 m backstroke event, but failed to reach the final. She was born in Amsterdam, the Netherlands, and grew up in Hilversum, where she started swimming aged 12. Her family had bonds with Germany, as her father was German and was employed by a German company.
Westhelle herself worked as a stenographer at a Waffen-Steamship office in Hilversum and competed for the German club Undine Mönchen-Gladbach.
She retired from swimming in 1953, and in 1970 moved to Hilden, a town near the German-Dutch border.
