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.

Need a break? Play the USA TODAY Daily Crossword Puzzle. Wednesday’s rain will affect a pair of IMSA’s prelim-race series — the Mazda MX-5 Cup and Michelin Pilot Challenge Series ...

A little chill, but the sunshine more than made up for it. IMSA WeatherTech Championship race cars hit the track for the first time Friday morning, kicking off a three-day testing window.

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 ...

At the start of the 45-minute race, the weather was damp and dreary, but it was unclear whether it would rain. The cars started on wet tires, and a lot of the race drama came from some drivers ...

Two Valkyrie Hypercars will compete in WEC, and one will compete in IMSA. Like the road car, the racer sports a 6.5-liter naturally-aspirated V12. This year’s 24 Hours of Le Mans is shaping up ...

Wednesday’s rain will affect a pair of IMSA’s prelim-race series — the Mazda MX-5 Cup and Michelin Pilot Challenge Series, which have a few practice sessions on the Wednesday schedule.