After Saturday’s Xfinity Series Championship Race at Phoenix Raceway, Xfinity will no longer serve as the title sponsor of Nascar’s second-tier series. An 11-year run after taking over the series ...

Xfinity fiber-powered internet results in 99.9% network reliability. Combined with low-lag technology and unlimited data, it delivers consistent performance even during peak household usage.

AVONDALE, Ariz. — Dale Earnhardt Jr.‘s final NASCAR victory. Justin Allgaier‘s first championship. Stunning career debuts and the closest finish in all of NASCAR history. All of these moments will ...