NBC Sports had 2.35 million views for Sunday’s Xfinity 500 NASCAR Cup Series race at Martinsville Speedway.
The numbers are down from 2.5 million last year.
Martinsville viewership numbers are in: 2.35 million average viewers, down from 2.5 million last year.
F1's Mexico City race got 1.3 million viewers in their race-only window. During the time F1 was head-to-head with NASCAR, NASCAR had 2.6 million viewers to F1's 1.3.
— Jeff Gluck (@jeff_gluck) October 30, 2025