2025 IMSA SportsCar 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.

The provisional schedule was released on March 15, 2024, and features an unchanged 11 rounds.

[1][2] In accordance with the 2017 LMP2 regulations, all cars in the LMP2 class use the Gibson GK428 V8 engine.

Points are awarded based on finishing positions in qualifying and the race as shown in the chart below.

There are also a number of manufacturer championships which utilize the same season-long point distribution chart.