2019 IMSA SportsCar Championship

The 2019 IMSA SportsCar Championship (known for sponsorship reasons as the 2019 IMSA WeatherTech SportsCar Championship) was the 49th motor racing championship sanctioned by the International Motor Sports Association (IMSA) (which traces its lineage back to the 1971 IMSA GT Championship). It was the sixth season of the United SportsCar Championship and fourth to be held under the name as the IMSA SportsCar Championship. It began on January 26 with the 24 Hours of Daytona, and ended on October 12 with the Petit Le Mans. The 2019 season marked the 50th anniversary since the founding of the International Motor Sports Association.