The first 60 minutes and last two hours will air on NBC. USA, IMSA.TV and YouTube will share the middle portions. After that, IMSA, NASCAR’s sports-car cousin, will hibernate for six weeks.

Off-season changes in GTD Pro division of the IMSA Championship promise to make the title chase highly competitive in 2025. “Every driver in this lineup has won with us and we’re laser focused ...

The winning overall team in this year’s Rolex 24 At Daytona was hammered by sanctioning body IMSA on Wednesday for major rules infractions. Meyer Shank Racing will be able to keep the victory ...