IMSA Reports Significant Growth in Domestic and International Audiences Amid Global Motorsport Boom

Sportscar racing is experiencing a major surge in popularity across North America and internationally, mirroring the broader motorsport boom seen in recent years. IMSA reported that its domestic audience grew by more than a third last year, while international viewership increased by almost a quarter. According to the report, multi-hour and multi-class races fit modern streaming habits and second-screen viewing much better than traditional linear television.

Fans are also drawn to the striking designs of competing vehicles, which include mostly hybrid prototypes and GT cars built from road models by manufacturers like Porsche and Ferrari. Beyond screens, the series benefits from high fan access at live events through open paddocks and grid walks that let crowds approach the cars before races begin.

IMSA President John Doonan noted that the organization is only scratching the surface of this growing fan passion across live attendance, broadcast viewing, and social media engagement. To support this growth, IMSA has launched outreach efforts to introduce local high school students to the industry. The organization also established a partnership to train additional mechanics through ASE.