[2] She finished as lead amateur in the 1999 Women's British Open where she tied for 24th place.

Sergas turned professional on 22 October 1999 and played initially on the Ladies European Tour.

After the conclusion of the 2013 Women's British Open, she was chosen by Liselotte Neumann as one of her four captain's selections to the 2013 European Solheim Cup Team for the matches to be held in Colorado.

It was the Europeans' first successful defense of the Cup, and also the first win for Team Europe on American soil.

[5] Sergas represented Italy at the women's golf tournament at the 2016 Summer Olympics in Rio de Janeiro, Brazil.