The Lamar Hunt U.S. Open Cup is the oldest ongoing soccer tournament in the United States, established in 1914. It features teams from various levels of American soccer, including Major League Soccer (MLS), lower divisions, and amateur clubs. The tournament is a knockout format, meaning teams compete in single-elimination matches. Named after Lamar Hunt, a key figure in American soccer and sports, the cup allows clubs to compete for a prestigious trophy and a chance to qualify for the CONCACAF Champions League. The tournament showcases the depth and talent of soccer across the country, promoting competition and excitement.