Internationally she was most successful in women's doubles, usually partnered with Joke van Beusekom, winning at the (first) European Youth Championships in 1969, the Denmark Open in 1972 and 1975, the Irish International in 1975, and the Dutch Open in 1977.
Ridder, Kazakhstan | Knight Ridder | Ridder | Herman Ridder | Daniël de Ridder | Victor F. Ridder | Ridder (title) | Philip Ridder | Peter de Ridder | Matlan Marjan | Marjan Žbontar | Marjan Pejoski | Allard de Ridder |