Lang played in her first Scott Tournament of Hearts in 1983 as a third for Anne Provo. The team finished 4-6. She returned to the Hearts in 1988 as Heather Houston's third. At the 1988 Hearts, the team had to win two tie-breakers before winning two playoff games to claim the championship. They defeated the defending champion Pat Sanders. At the 1988 World Championships, the team won the silver medal, losing to Germany's Andrea Schöpp in the final. The Hearts victory gave them a berth at the 1989 Scott Tournament of Hearts. The team would go on to win that as well. They had to win three playoff games before beating Chris More of Manitoba in the final.