Lunde Borgersen made her debut on the Norwegian national team in 2001, with Marit Breivik as coach. Her first major competition was the 2001 World Championship in Italy, where she won a silver medal. She did not participate in the 2002 European Championship and even though she was back in the team for Croatia 2003, her first gold medal came in 2004, when Norway won the European Championship. She was European Champion again in 2006.