Mezue ahịrịokwu na-esonụ: Van Rooijen mere ya mba agadi mpụta mbụ na European LC n'asọmpi 1999 na Istanbul, Turkey na 4 ebe na ma 4 × 100 m freestyle na 4 × 100 m medley relay. Mgbe otu afọ gachara, ọ maliteghachiri ọrụ n"ụlọ ọrụ ahụ.
European LC Championship oge a ọ mere na Helsinki, Finland. N'ebe ahụ ọ malitere n'otu n'otu na 100 m na 200 m freestyle na-ejedebe 17 na 24th. Na 4 × 200 m freestyle relay enwere ebe 7. N'ọnwa Septemba 2000 ọ gara asọmpi Olympic nke Sydney ebe o meriri ọla ọcha na 4 × 100 m freestyle relay ya na Inge de Bruijn, Wilma van Hofwegen na Thamar Henneken. Enwekwara ebe nke iri na otu na 4 × 200 m freestyle.