From 2000 to 2003 she participated at tournaments with the national team. She added gold medals at the 2002 World Championships and 2003 Pan American Games to her resume, batting .471 in the Pan-Americans. In the 2004 Athens Olympics she started eight of the nine games, batting .368, and held a perfect fielding average. In the gold medal game on August 23, Berg had a hit in the eventual win over Australia. In 2006 Berg won her fourth consecutive World Championship in Beijing. Berg's four World Championship appearances is a record for the event.