[2] With fellow crew members Annemieke Bes and Merel Witteveen, Mulder as helmsman took Silver medal in the Yngling.

She took part in the 2002 Laser 4.7 World Junior Championship where she won the bronze medal.

As of 2005 she sails in the yngling and was part of the Dutch national team selection straight away.

She won bronze medals at the Open Dutch Championships as well as at the Princess Sofia Trophy in Mallorca.

In 2007 a team was formed of nine sailors,[3] (among them were Mulder, Annemieke Bes, Merel Witteveen, Renée Groeneveld, Marije Faber, Marije Kampen and Brechtje van der Werf), that aimed and qualify for the Olympics in the Yngling.