MALVERN'S Olympian Ceris Gilfillan scored the biggest win of her career when she clinched the five-day Grand Prix Feminin International du Quebec in Canada.

Gilfillan, aged 20, pushed France's Olympic champion, Jeannie Longo into second place by just two seconds after 461 kilometres of racing.

Gilfillan was back in 20th position after the first stage but by the third stage had moved into second place overall as well as taking the lead in the best young rider's competition.

The fourth stage saw Gilfillan trail Australian time trial champion Tracey Gaudry by 19 seconds but leading world champion Longo by five seconds.

She finished 17th in stage five and a gutsy fourth in stage six saw her into top spot overall.