The largest stadium by seating capacity in the United States is the Indianapolis Motor Speedway, which hosts the iconic Indianapolis 500 auto race and features permanent seating for over 250,000 spectators. However, when considering traditional sports stadiums specifically designed for field-based athletic competition like football, Michigan Stadium in Ann Arbor holds the record for the largest capacity, officially seating 107,601 patrons. Beaver Stadium at Penn State University and Ohio Stadium at Ohio State University follow closely, representing the absolute peak of structural scale for American collegiate gridiron sports arenas, which are designed to support massive crowds of tens of thousands of cheering fans every single weekend during the autumn.