The 2017 IMSA SportsCar Championship (known for sponsorship reasons as the 2017 IMSA WeatherTech SportsCar Championship) was the 47th season of the International Motor Sports Association (IMSA) GT Championship that traces its lineage to the 1971 IMSA GT Championship. It was the fourth season of the United SportsCar Championship and second under the name as the IMSA SportsCar Championship. It began on 28 January with the 24 Hours of Daytona, and ended on 7 October with the Petit Le Mans.[1]