At 19, Hamm was the youngest on the U.S. team for the inaugural Women's World Cup win.
On November 16, 1991, the U.S. Women's National Team made history by winning the first-ever FIFA Women's World Cup in Guangzhou, China, defeating Norway 2-1. Among this championship team was 19-year-old Mia Hamm, making her the youngest team member to achieve this feat. This victory not only established Hamm as a key player in international soccer but also set a precedent for the visibility and growth of women's soccer worldwide. Hamm's participation highlighted the importance of youth talent in building a successful team and demonstrated that young female athletes could compete and excel at the highest levels of international sports.