Prime Video averaged 2.07 million viewers for Sunday’s NASCAR Cup Series FireKeepers Casino 400 at Michigan International Speedway, according to Nielsen’s Big Data + panel figures reported by Sports Business Journal’s Adam Stern.
The audience was up 17% from the comparable Michigan race in 2025, which drew 1.77 million viewers.
Michigan’s 2.07 million viewers represented Prime Video’s second-largest NASCAR audience of the season, trailing only the Coca-Cola 600 (3.06 million) and slightly exceeding Nashville (2.01 million).
.@PrimeVideo got 2.07 million viewers for Sunday's NASCAR FireKeepers Casino 400 at Michigan, up 17% from last year's comparable figures, according to Nielsen's Big Data + panel figures. pic.twitter.com/CHGbfgf5na
— Adam Stern (@A_S12) June 9, 2026