Comcast’s Xfinity brand is ending its sponsorship of NASCAR’s second-tier Xfinity Series at the end of the 2025 season before evolving into a different sponsorship role within NASCAR, the association said Tuesday.

NASCAR Xfinity Schedule has seen quite a few shake-ups. 33 races make up the 2025 schedule. Here are the five most intriguing races on the calendar for NASCAR's second-tier series.

NASCAR’s second-tier series will need a new title sponsor in 2026. Xfinity has been the sponsor of the series since 2014, but will vacate that sponsorship at the end of the 2025 season, according to multiple reports.