Xfinity has held the naming rights to NASCAR's No. 2 division since 2015, but next year, it will be known officially as the NASCAR O’Reilly Auto Parts Series. The company will be the fourth brand to hold the naming rights to the popular series, which is the final stepping stone before the Cup level. The 33-race season is broadcasted exclusively on The CW, and has seen a notable rise in viewership this year (up 17 percent from 2024).
When the division first launched in 1982, it was originally called the Budweiser Late Model Sportsman Series before evolving into the NASCAR Busch Grand National Series. It was known as such from 1984 through 2002, when the name was shortened to the NASCAR Busch Series. In 2008, Nationwide took over as the entitlement sponsor until the end of the 2014 season.
