Average viewership had been steadily increasing from 2020 onwards, peaking with the most-watched season since 2011 in 2023 (at the time). But IndyCar stumbled in its final year with NBC - so much so that the broadcaster did not publicise full-season figures.
With Fox taking over broadcast responsibilities in 2025, IndyCar enjoyed its most-watched season since 2011.
The Indianapolis 500 is IndyCar's flagship event, arguably carrying more weight than the championship itself in the US and around the world. Recent viewership has struggled, mostly due to inclement weather, but the first race on Fox was a huge success.
7.05 million viewers watched last year's Indy 500, the most-watched edition of the race since 2008.
