2025 IMSA SportsCar Championship

The No. 7 Porsche Penske Motorsport is leading the GTP Teams' Championship, with Porsche being the leader of the GTP Manufacturers' Championship. The No. 22 United Autosports USA is leading the LMP2 Teams' Championship. The No. 65 Ford Multimatic Motorsports is leading the GTD Pro Teams' Championship, with Ford leading the GTD Pro Manufacturers' Championship.

The 2025 IMSA SportsCar Championship (known for sponsorship reasons as the 2025 IMSA WeatherTech SportsCar Championship) is an ongoing motor racing championship and the 55th racing season sanctioned by the International Motor Sports Association, which traces its lineage back to the 1971 IMSA GT Championship. It is also the twelfth season of the IMSA SportsCar Championship since the merger between the American Le Mans Series and the Rolex Sports Car Series in 2014, and the tenth under the sponsorship of WeatherTech.